0001628280-26-017378 | 10-K | XBRL Viewer

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Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Litigation settlement	$ 8,250	$ 11,306
Accrued employee expenses	6,263	6,611
Contingent consideration	1,741	10
Accrued taxes payable	1,333	1,276
Accrued operating expense	1,525	290
Accrued royalties payable	285	215
Other	0	93
Total accrued expenses and other current liabilities	$ 19,397	$ 19,801

Description of Business (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Subsidiary, Sale of Stock [Line Items]
Proceeds from initial public offering, net of underwriting fees		$ 0	$ 106,020
IPO
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	6,000,000
Sale of stock, price per share (in dollars per share)	$ 19.00
Sale of stock, consideration received on transaction, including underwriting discounts and commissions	$ 114,000
Proceeds from initial public offering, net of underwriting fees	106,000
Payments of underwriting discounts and commissions	$ 8,000

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash flows from operating activities:
Net loss	$ (41,206)	$ (39,404)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,470	1,285
Stock-based compensation expense	10,813	26,915
Loss on fixed asset disposal	38	0
Provision for credit losses	(80)	351
Accretion of discount on marketable securities, net	(490)	(1,685)
Loss on debt extinguishment	0	718
Change in fair value of contingent consideration	94	(27)
Changes in operating assets and liabilities:
Accounts receivable	2,288	(5,971)
Contract assets	(2,667)	(10,293)
Prepaid expense and other current assets	(164)	(790)
Other assets	1,281	57
Accounts payable	(781)	1,326
Accrued expenses and other current liabilities	(27,626)	(2,160)
Accrued income taxes	817	74
Deferred revenue	1,508	(1,585)
Other non-current liabilities	(2,395)	109
Net cash used in operating activities	(33,906)	(19,774)
Cash flows from investing activities:
Purchases of marketable securities	0	(99,630)
Sales of marketable securities	32,288	0
Maturities of marketable securities	34,900	33,600
Proceeds from fixed asset disposal	32	0
Purchases of property and equipment	(618)	(505)
Acquisition of businesses	(32,879)	0
Net cash provided by (used in) investing activities	33,723	(66,535)
Cash flows from financing activities:
Proceeds from initial public offering, net of underwriting fees	0	106,020
Proceeds from issuance of convertible note, net of debt issuance costs	0	4,852
Proceeds from loan facility	0	4,250
Repayment of loan facility	0	(4,250)
Repayment of related party line of credit	0	(2,000)
Proceeds from issuance of common stock for share-based awards	899	315
Payroll taxes related to shares withheld from employees	(1,808)	(4,575)
Deferred transaction costs	0	(2,649)
Contingent consideration	(46)	(74)
Payments of vendor financing obligation	(1,259)	(588)
Net cash (used in) provided by financing activities	(2,214)	101,301
Effect of exchange rate fluctuations on cash, cash equivalents and restricted cash	49	193
Net (decrease) increase in cash and cash equivalents	(2,348)	15,185
Cash, cash equivalents and restricted cash, beginning of period	19,606	4,421
Cash, cash equivalents and restricted cash, end of period	17,258	19,606
Cash, cash equivalents and restricted cash:
Cash and cash equivalents	9,008	19,606
Restricted cash	8,250	0
Total cash, cash equivalents and restricted cash	17,258	19,606
Supplemental disclosures of cash flow information:
Income taxes paid	550	625
Interest paid	359	498
Noncash investing and financing activities:
Right-of use assets obtained in exchange for operating lease liabilities	2,400	607
Fair value of common stock issued in acquisition of businesses	5,267	0
Issuance of equity upon Micron Note conversion	0	5,589
Financial obligation incurred upon purchase of NXP IP	0	4,979
Nonrelated Party
Adjustments to reconcile net loss to net cash used in operating activities:
Litigation settlement	13,069	11,306
Related Party
Adjustments to reconcile net loss to net cash used in operating activities:
Litigation settlement	$ 8,125	$ 0

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	May 31, 2024
Statement of Stockholders' Equity [Abstract]
Deferred transaction costs	$ 3,299	$ 3,300

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets
Accruals and reserves	$ 2,473	$ 3,436
Depreciable and amortizable assets	2,278	5,767
Net operating loss carryforward	9,598	766
Tax credits	9,411	8,279
Stock-based compensation expense	455	492
Total deferred tax asset	24,215	18,740
Valuation Allowance	(24,026)	(18,621)
Net deferred tax asset	189	119
Deferred tax liabilities
Revenue recognition	(189)	(414)
Depreciable & Amortizable Assets		0
Net deferred tax liability	$ 0	$ (295)

Leases - Schedule of Operating Lease Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
2026	$ 1,443
2027	1,068
2028	448
2029	242
2030	34
Thereafter	154
Total lease payments	3,389
Less: imputed interest	(307)
Total operating lease liabilities	3,082
Current portion of lease liability	1,121	$ 744
Non-current portion of lease liability	$ 1,961	$ 946

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
2026	$ 4,408
2027	4,364
2028	4,343
2029	3,596
2030	3,347
Thereafter	5,969
Net Carrying Value	$ 26,027	$ 4,369

Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 7,959	$ 7,247
Increases related to prior year tax positions	0	0
Increases related to current year tax positions	719	712
Decreases related to prior year tax positions	0	0
Ending balance	$ 8,678	$ 7,959

Stock-Based Compensation - Narrative (Details)		1 Months Ended		12 Months Ended
Stock-Based Compensation - Narrative (Details)	Mar. 18, 2024 requirement	Aug. 31, 2025 USD ($) $ / shares	Nov. 30, 2023 USD ($) shares	Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($) $ / shares shares	May 08, 2024 shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares authorized (in shares)				833,994
Common stock reserved for future issuance (in shares)				2,954,900
Unrecognized stock-based compensation expense \| $				$ 14,400,000
Stock-based compensation expense \| $				$ 10,813,000	$ 26,915,000
Unrecognized stock-based compensation expense, period for recognition (in years)				2 years 6 months
Unvested RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares reserved (in shares)						4,600,000
Award vesting period (in years)				4 years
Number of vesting requirements \| requirement	2
Requisite service period (in years)				4 years
Granted (in shares)				3,190,983	1,183,350
Stock-based compensation expense for liability-classified award \| $				$ 15,300	$ 600,000
Grants in period if bonus was finalized (in shares)				101,486
Stock-based compensation expense \| $				$ 1,100,000
Vested (in shares)				1,466,557	2,914,650
Accelerated vesting (in shares)				158,359
Unvested RSUs \| Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)				1 year
Award vesting rights (in percent)				25.00%
Unvested RSUs \| Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)				3 years
Award vesting rights (in percent)				75.00%
Restricted Stock Units (RSUs) - Refresh
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)				4 years
Restricted Stock Units (RSUs) - Liquidity-Event Based
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expiration period (in years)	10 years
Restricted Stock Units (RSUs) - Time-Based
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)	4 years
Restricted Stock Units (RSUs) - Time-Based \| Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)	1 year
Award vesting rights (in percent)	25.00%
Restricted Stock Units (RSUs) - Time-Based \| Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award vesting period (in years)	3 years
Restricted Stock Units (RSUs) - Performance-Based And Time-Based
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted (in shares)			30,000
Grant date fair value \| $			$ 400,000
Stock-based compensation expense \| $					$ 100,000
Restricted Stock Units (RSUs) - Market-Based, Liquidity Event-Based, And Time-Based
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted (in shares)			75,000
Grant date fair value \| $		$ 1,100,000	$ 600,000
Volume-weighted average stock price (“VWAP”) (in dollars per share) \| $ / shares		$ 4.54			$ 8.92
Volatility (in percent)					50.00%
Risk free interest rate (in percent)		3.80%			4.30%
Expected volatility (in percent)		77.00%
Stock-based compensation expense \| $				$ 200,000	$ 100,000
Share-based compensation, shares issued in period (in shares)				0
Vested (in shares)				0
Employee stock purchase plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Contribution rate (in percent)				15.00%
Purchase price of stock (in percent)				85.00%
Offering period				6 months
Unrecognized stock-based compensation expense \| $				$ 200,000
Risk free interest rate (in percent)				4.01%	4.45%
Expected volatility (in percent)				68.19%	46.80%
Unrecognized stock-based compensation expense, period for recognition (in years)				5 months

Summary of Significant Accounting and Reporting Policies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	May 31, 2024	Dec. 31, 2023
Accounting Policies [Line Items]
Amortization period of sales commissions (in years)	5 years
Capitalized sales commissions	$ 400,000	$ 900,000
Amortization of sales commissions	900,000	900,000
Cash and cash equivalents	9,008,000	19,606,000
Impairment charges of long-lived assets	0	0
Deferred transaction costs		3,299,000	$ 3,300,000
Deferred transaction costs outstanding	0	0
Cash, cash equivalents and restricted cash	17,258,000	19,606,000		$ 4,421,000
Restricted cash	8,250,000	0
Unrealized gain (loss) on marketable securities	(140,000)	141,000
Foreign currency translation adjustments	476,000	(417,000)
Net foreign exchange losses	200,000	400,000
Advertising costs	$ 40,000	$ 39,000
Minimum
Accounting Policies [Line Items]
Useful lives (in years)	2 years
Maximum
Accounting Policies [Line Items]
Useful lives (in years)	12 years
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent \| Financial Institution Risk \| Foreign Subsidiaries
Accounting Policies [Line Items]
Cash, cash equivalents and restricted cash	$ 5,500,000
Concentration risk, percentage (in percent)	55.00%
One Financial Institution \| Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent \| Financial Institution Risk
Accounting Policies [Line Items]
Cash, cash equivalents and restricted cash	$ 11,000,000.0
Concentration risk, percentage (in percent)	64.00%

Restructuring

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

Restructuring

In October 2025, the Company began implementing targeted cost-savings initiatives intended to streamline the Company’s organizational structure, improve execution, and enhance stockholder value (the “Restructuring Plan”). The Company announced a voluntary early retirement program and a voluntary exit program available to certain employees in the United States, Asia, and Europe that meet the eligibility criteria. Participating employees received acceleration of any unvested RSUs held by the participating employees together with a grant of fully vested shares, such that the total value of the accelerated RSUs and additional shares is equal to four, six, or twelve months of the participating employee’s salary. In connection with the Restructuring Plan, on November 24, 2025, the Company also announced an involuntary reduction in force in the United States. The Company incurred costs in connection with the Restructuring Plan that consist of severance costs for 52 terminated employees and other costs such as the site closures as part of its global site strategy. The Company expects to complete the Restructuring Plan in 2026.

The Company has $0.1 million of remaining obligations related to the restructuring plan as of December 31, 2025, which are included in accrued expenses and other current liabilities on the Company’s consolidated balance sheets.

Restructuring expenses are included within operating expenses in the consolidated statements of loss as follows:


	Year Ended December 31, 2025
	(in thousands)
Research and development	$	737
Selling and marketing	384
General and administrative	149
	$1,270

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Warranties The Company typically provides its customers a warranty on its software licenses for a period of no more than 90 days and on its other tools for a period of no more than one year. Such warranties are accounted for in accordance with the authoritative guidance issued by the FASB on contingencies. For the years ended December 31, 2025 and 2024, the Company has not incurred any costs related to warranty obligations. Indemnification Under the terms of substantially all of its license agreements, the Company has agreed to indemnify its customers for costs and damages arising from claims against such customers based on, among other things, allegations that the Company’s software infringes the intellectual property rights of a third party. In most cases, in the event of an infringement claim, the Company retains the right to (i) procure for the customer the right to continue using the software; (ii) replace or modify the software to eliminate the infringement while providing substantially equivalent functionality; or (iii) if neither (i) nor (ii) can be reasonably achieved, the Company may terminate the license agreement and refund to the customer a pro-rata portion of the license fee paid to the Company. Such indemnification provisions are accounted for in accordance with the authoritative guidance issued by the FASB on guarantees. From time to time, in the ordinary course of business, the Company receives claims for indemnification. Guarantees In February of 2012, Gu-Guide LP, Bank of the West and the Company, as guarantor, entered into a loan agreement, which was secured by a 9,000 square foot building located in Santa Clara, California. In the event that the proceeds from the foreclosure of the collateral was insufficient to repay the outstanding amounts under the Loan, the Company guaranteed the repayment of the Loan. The Loan was repaid in full and the Company was released from the guarantee in July of 2024. Legal Proceedings In December 2020, the Company sought declaratory relief in the California Superior Court to clarify its obligations regarding the earnout payments due to the former stockholders of Nangate following its acquisition by the Company in 2018. The former stockholders of Nangate and a third cross-complainant (collectively, “the Nangate Parties”) subsequently filed a cross-complaint against the Company and two of its principal stockholders and members of the board of directors (“the Co-Defendants”) seeking $20.0 million in damages for breach of contract, fraud, and unfair business practices, as well as punitive damages. On July 23, 2024, a jury awarded the Nangate Parties $11.3 million in damages under breach of contract related claims, including breach of contract and breach of the covenant of good faith and fair dealing, and court and litigation related costs and expenses to be determined by the court (the “Contract Damages”). As a result, during the year ended December 31, 2024, the Company recorded a litigation settlement expense of $13.1 million for the Contract Damages awarded to the Nangate Parties. The jury also found the Company and the Co-Defendants liable for certain of the misrepresentation claims and awarded the Nangate Parties $6.6 million in compensatory damages, for which the Company and the Co-Defendants were jointly and severally liable. Incremental punitive damages relating to these claims, including $17.0 million payable by the Company and a total of $16.0 million to be paid by the Co-Defendants, were awarded following a hearing on August 16, 2024 (collectively, the “Fraud Damages”). Under California law, the Nangate Parties were entitled to elect either the Contract Damages or the Fraud Damages but could not receive both. In May 2025, the parties entered into the Settlement Agreement pursuant to which the Company and the Co-Defendants agreed to pay the Nangate Parties’ an aggregate amount of $32.5 million in full resolution of all claims, and in September 2025, the U.S. Court of Appeals for the Ninth Circuit reversed the fraud and breach of contract verdicts, and the parties dismissed all claims. In connection with the litigation, the Company recorded litigation settlement expense of $13.1 million and $11.3 million during the years ended December 31, 2025 and 2024, respectively. As of December 31, 2025, the Company’s remaining liability under the Settlement Agreement was $8.3 million, which is included in accrued expenses and other current liabilities on the consolidated balance sheet. The remaining liability of $8.3 million has been paid in February 2026. Refer to Note 10, Related Parties for additional information. As of December 31, 2025, the Company held restricted cash of $8.3 million to secure an irrevocable standby letter of credit issued in connection the Settlement Agreement. Refer to Note 2, Summary of Significant Accounting and Reporting Policies for additional information. On August 19, 2021, Aldini AG (“Aldini”) sued Silvaco, Inc., the Company’s French affiliate, a member of the Company’s board of directors and the Company’s CEO, among numerous other noncompany defendants, including the Government of France, in connection with the Company’s interactions with Dolphin Design SAS (“Dolphin”). Aldini’s allegations center around the bankruptcy and reorganization of Dolphin in 2018 and Silvaco, Inc.’s acquisition of certain memory assets of Dolphin, which Aldini alleges was done in violation of its rights as a shareholder of Dolphin. Aldini’s First Amended Complaint asserts various tort claims including claims for trade secret theft, conspiracy, and intentional interference with a prospective economic advantage. Silvaco, Inc. filed a motion to dismiss; the trade secret theft and conspiracy claims were dismissed with prejudice and the intentional tort claims were dismissed with leave to amend. On August 23, 2022, Aldini filed a Second Amended Complaint that included similar claims of trade secret theft, conspiracy, and intentional interference with a prospective economic advantage in relation to Silvaco, Inc.’s acquisition of certain assets of Dolphin. Aldini seeks $703.0 million and punitive damages. On March 17, 2023, the Second Amended Complaint was dismissed on all counts, subject to a right of appeal. Aldini filed a notice of appeal on April 27, 2023 and arguments were scheduled for November 22, 2024. On December 19, 2024, the U.S. Court of Appeals for the Ninth Circuit affirmed the dismissal of all claims brought against the Company by Aldini AG. The Company accordingly has not recorded a charge for this contingency. The Company is subject to export control and import laws and regulations of the United States and other applicable jurisdictions, including the Export Administration Regulations. Between August 2019 and June 2022, the Company filed voluntary self-disclosures with U.S. Department of Commerce, Bureau of Industry and Security (“BIS”) regarding potential violations of U.S. export control laws and regulations, specifically, the export of the Company’s licenses to certain parties designated on BIS’s Entity List and Unverified List, and the export of certain software modules without a license which was required at the time of the transaction. Such software modules were declassified by BIS in October 2020 to a lesser controlled export classification, meaning that such software generally no longer requires an export license. In April 2025, BIS issued a warning letter in response to the voluntary self-disclosures instead of pursuing criminal or administrative penalties or taking other enforcement action. However, as is common in these instances, BIS reserved the right to take future enforcement action should additional information warrant renewed attention. The Company is party to various litigation matters and claims arising from time-to-time in the ordinary course of business. While the results of such matters cannot be predicted with certainty, unless disclosed above, the Company believes that the final outcome of such matters will not have a material adverse effect on the Company’s business, financial condition, results of operations or cash flows. However, each of these matters is subject to various uncertainties and it is possible that an unfavorable resolution of one or more of these proceedings could materially affect the Company.

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 31, 2025
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity

The following table summarizes the Company's RSU activity pursuant to the 2014 Plan and the 2024 Plan:


	Weighted Average			Number of Awards
	Grant Date Fair Value		Remaining Contract Term (in years)
Balance as of December 31, 2023	$	7.20	6.56	3,398,276
Granted	15.71		9.09	1,183,350
Vested	10.78		8.00	(2,914,650)
Forfeited / canceled	9.42		7.00	(163,314)
Balance as of December 31, 2024	$	12.75	8.83	1,503,662
Granted	4.61		9.41	3,190,983
Vested	9.57		8.51	(1,466,557)
Forfeited / canceled	7.36		8.61	(601,052)
Balance as of December 31, 2025	$	6.10	9.20	2,627,036

Schedule of Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award, Employee Stock Purchase Plan (ESPP)

The shares purchased, the weighted average purchase price, and the cash received for 2024 ESPP purchases were as follows (in thousands, except shares purchased and weighted average purchase price):


	Year Ended December 31, 2025		Year Ended December 31, 2024
Shares purchased	230,637		44,930
Weighted average purchase price	$	3.90	$	7.01
Cash received	$	899	$	315

Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Weighted Average Assumptions

The weighted average fair value of each award granted under the 2024 ESPP and the weighted-average assumptions for the valuation of employee stock purchase right based on the Black-Scholes option pricing model are as follows:


	Year Ended December 31, 2025			Year Ended December 31, 2024
Dividend yield	$	—		$	—
Expected volatility	68.19		%	46.80		%
Risk-free interest rate	4.01		%	4.45		%
Expected term (in years)	0.50			0.46
Weighted average fair value of shares granted	$	1.44		$	2.65

Schedule of Share-Based Payment Arrangement, Expensed and Capitalized, Amount

The following table summarizes stock-based compensation expense:


	Year Ended December 31,
	2025		2024
	(in thousands)
Cost of revenue	$	1,317	$	2,974
Research and development	2,708		5,091
Selling and marketing	1,722		4,319
General and administrative	5,066		14,531
	$	10,813	$	26,915

Acquisitions (Tables)

12 Months Ended

Dec. 31, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed

The following is a summary of the assets acquired and liabilities assumed in the OPC Business acquisition.


Asset Type	Useful Life (in years)	Fair Value
		(in thousands)
Contract asset		$	615
Deferred tax asset		164
Developed Technology	7	1,000
Customer Relationships	6	4,990
Goodwill		5,147
Deferred revenue		(416)
Net assets acquired and liabilities assumed		$	11,500

The following is a summary of the fair value of assets acquired and liabilities assumed in the Tech-X acquisition.


Asset Type	Useful Life ( in years)	Fair Value
		(in thousands)
Cash		$	851
Accounts receivable		749
Prepaid expenses and other current assets		75
Property and equipment		33
Customer relationships	6	1,730
Developed technology	7	1,280
Trade name	2	130
Goodwill		4,385
Accounts payable		(104)
Accrued expenses and other current liabilities		(303)
Deferred tax liability		(572)
Deferred revenue		(80)
Net assets acquired and liabilities assumed		$	8,174

The following is a summary of the fair value of assets acquired and liabilities assumed in the Mixel acquisition.


Asset Type	Useful Life (in years)	Fair Value
		(in thousands)
Cash		$	1,040
Accounts receivable		1,736
Contract assets, net		45
Prepaid expenses and other current assets		392
Property and equipment		486
Customer relationships	7	7,400
Developed technology	7	2,700
Trade name	12	5,500
Operating lease right-of-use assets, net		881
Other assets		4
Goodwill		11,512
Accounts payable		(842)
Accrued expenses and other current liabilities		(1,609)
Operating lease liabilities, current		(269)
Deferred revenue, current		(2,653)
Deferred tax liability		(3,209)
Operating lease liabilities, non-current		(612)
Net assets acquired and liabilities assumed		$	22,502

Schedule of Business Combination

The operating results of the OPC Business, which have been included in the Company’s consolidated financial statements since the date of acquisition, were as follows:


		Year Ended December 31, 2025
	(in thousands)
Revenue		$	10,061

- Definition

Tabular disclosure of business combination. Includes, but is not limited to, recognized asset and liability.

+ References + Details

Significant Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Other Assets

Prepaid expenses and other current assets consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Research and development tax credits and grants	$	1,666	$	900
Deferred sales commissions(a)	751		793
Software and subscriptions	1,089		679
Current lease deposits	163		321
Other prepaid expenses	1,059		767
Total prepaid expenses and other current assets	$	4,728	$	3,460

Other assets consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Deferred sales commissions(a)	$	1,112	$	1,449
Lease deposits	188		142
Other prepaid expenses	258		107
Total other assets	$	1,558	$	1,698

(a)Balance reflects commissions paid for new contracts, primarily new multi-year term license arrangements to be amortized over the anticipated customer life of five years.

Leases (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Lease, Cost

The components of operating lease cost were as follows:


	Year Ended December 31,
	2025		2024
	(in thousands)
Operating lease cost	$	1,215	$	940
Variable lease cost (1)	484		168
Total operating lease cost	$	1,699	$	1,108

(1)Variable lease cost includes common area maintenance, utilities, security, insurance and property taxes.

Additional information related to the Company’s operating leases for the years ended December 31, 2025 and 2024 was as follows:


	Year Ended December 31,
	2025			2024
	(in thousands)
Cash paid for operating lease liabilities	$	1,215		$	930
Right-of use assets obtained in exchange for operating lease liabilities	$	2,400		$	607


	December 31,
	2025			2024
Weighted average remaining lease term (in years)	3.21			3.41
Weighted average discount rate	8.04		%	3.00		%

Lessee, Operating Lease, Liability, to be Paid, Maturity

As of December 31, 2025, maturities of operating lease liabilities were as follows:


Year Ending December 31,	Amount
	(in thousands)
2026	$	1,443
2027	1,068
2028	448
2029	242
2030	34

Thereafter	154
Total lease payments	$	3,389
Less: imputed interest	(307)
Total operating lease liabilities	$	3,082
Current portion of lease liability	1,121
Non-current portion of lease liability	$	1,961

Restructuring (Tables)

12 Months Ended

Dec. 31, 2025

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Expenses

Restructuring expenses are included within operating expenses in the consolidated statements of loss as follows:


	Year Ended December 31, 2025
	(in thousands)
Research and development	$	737
Selling and marketing	384
General and administrative	149
	$1,270

Stock-Based Compensation - Employee Stock Purchase Plan (ESPP) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Cash received	$ 899	$ 315
Employee stock purchase plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares purchased (in shares)	230,637	44,930
Weighted average purchase price (in dollars per share)	$ 3.90	$ 7.01
Cash received	$ 899	$ 315

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

Description of Business	12 Months Ended
Description of Business	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business Silvaco Group, Inc. (“Silvaco,” and the “Company” refers to Silvaco Group Inc. and its subsidiaries, unless the context specifically requires otherwise) was incorporated as a Delaware corporation on November 18, 2009. The Company is a provider of technology computer aided design (“TCAD”) software, electronic data automation (“EDA”) software and semiconductor intellectual property (“SIP”). TCAD, EDA and SIP solutions enable semiconductor and photonics companies to increase productivity, accelerate their products’ time-to-market and reduce their development and manufacturing costs. The Company has decades of expertise developing the “technology behind the chip” and providing solutions that span from atoms to systems, starting with providing software for the atomic level simulation of semiconductor and photonics material for devices, to providing software and SIP for the design and analysis of circuits and system level solutions. The Company provides SIP for system-on-a-chip (“SoC”), integrated circuits (“ICs”) and SIP management tools to enable team collaborations on complex SoC designs. The Company’s customers include semiconductor manufacturers, original equipment manufacturers (“OEMs”) and design teams who deploy the Company’s solutions in production flows across the Company’s target markets, including display, power devices, automotive, memory, high performance computing (“HPC”), internet of things (“IoT”) and 5G/6G mobile markets. Initial public offering In May 2024, the Company completed its initial public offering (“IPO”), in which it issued and sold 6,000,000 shares of its common stock at the public offering price of $19.00 per share. The Company received gross proceeds of $114.0 million, with $106.0 million funded to the Company after deducting underwriting discounts and commissions of $8.0 million.

Summary of Significant Accounting and Reporting Policies (Policies)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Basis of presentation and consolidation

The accompanying consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles and include the accounts of Silvaco and all of the Company's wholly owned subsidiaries with operations in North America, Europe, Asia, Africa, and South America. All intercompany transactions and balances have been eliminated upon consolidation.

Use of estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Estimates also affect the amounts of revenue and expenses during the reported periods. The Company’s most significant estimates relate to revenue recognition and the valuation of goodwill and other intangible assets. Other uses of estimates include, but are not limited to, current expected credit losses for accounts receivable and contract assets, stock-based compensation expense, contingent consideration, derivative valuations, uncertain tax positions, legal contingencies and income taxes. Actual results could differ from those estimates.

Revenue recognition

The Company's revenue is derived principally from software licensing, customization and related maintenance and service, which are generally accounted for as separate performance obligations with differing revenue recognition patterns. Arrangements with both software licenses and customization services are accounted for as a combined performance obligation.

The Company recognizes revenue pursuant to Accounting Standard Codification (“ASC”) Topic 606, Revenue from Contracts with Customers. Revenue is recognized upon transfer of control of the promised good or service to the customer in an amount that reflects the consideration to which the Company expects to be entitled in exchange for such software or service. To achieve this objective, the Company applies a five-step approach: (1) identify the contract(s) with a customer, (2) identify the performance obligations within the contract, (3) determine the transaction price, (4) allocate the transaction price to the separate performance obligations and (5) recognize revenue when, or as, each performance obligation is satisfied.

Revenue from software licenses is classified as software license revenue. Software license revenue is recognized upfront upon delivery of the licensed software. Typically, the Company's software solution is licensed with post-contract support ("PCS"), which includes unspecified technical enhancements and customer support. The PCS is classified as maintenance and service revenue and is recognized ratably over the contract period, as the Company satisfies the PCS performance obligation over time.

The Company also offers standard SIP licenses, which provide the customer with access to SoC design intellectual property (“IP”) that meets established industry standards. Standard SIP licenses offered by the Company are ready to use upon delivery. No modification is required in order for the customer to receive value for use in their integrated circuit designs. The Company also offers SIP licenses that require customization in accordance with the customer’s specifications. Revenue associated with the license of the Company’s SIP is classified as software license revenue and recognized as revenue (i) upfront upon delivery of the standard SIP license, or (ii) over time when customization services are combined with the SIP license, as specific contractual milestones are met and incremental functionality is delivered to the customer. The Company does not offer SIP licenses without support. Support services for SIP licenses are classified as maintenance and service revenue and are recognized ratably over the term of the support period.

Under certain SIP license agreements, the Company also derives revenue through royalties from customers who agree to pay usage-based fees to embed the Company's licensed software into their own software offerings. Royalties are generally recognized as revenue during the period in which the customer sells its solutions which incorporate the Company’s SIP license.

In connection with the Company’s SIP licenses that was developed in partnership with a third party vendor, Silvaco has entered into various renewable license agreements under which the Company has the right to sell the technology it licenses from the third party vendor. When the Company licenses this particular SIP to a customer, it generally acts as a principal to the transaction because the Company controls the promised SIP that it delivers to the customer. Consistent with its role as principal, the Company recognizes SIP revenue on a gross basis. Royalty costs are reported in cost of revenue upon delivery pursuant to the terms and conditions of the Company’s contractual obligations with the licensors.

The Company recognized an immaterial portion of its revenue from device characterization and modeling services for the years ended December 31, 2025 and 2024. Revenue is recognized upon the completion of the requested services and, as applicable, satisfaction of customer acceptance terms. Revenue from these services is classified as maintenance and service revenue.

Payment terms and conditions vary by contract type, although terms generally include a requirement of payment within 30 days. Invoicing may vary from timing of revenue recognition. In instances where the timing of revenue recognition differs from the timing of invoicing, the Company has determined its contracts generally do not include a significant financing component.

Non-income related taxes collected from customers and remitted to governmental authorities are recorded on the consolidated balance sheets as accounts receivable and accrued expenses. The collection and payment of these amounts are reported on a net basis in the consolidated statements of loss.

Silvaco does not offer a right of return. The Company warrants to its customers that its software will perform substantially as specified in its current user manuals. Silvaco has not experienced significant claims related to software warranties beyond the scope of maintenance support, which the Company is already obligated to provide. The warranty is not sold, and cannot be purchased, separately. The warranty does not provide any type of additional service to the customer or performance obligation for Silvaco.

The Company's agreements with customers generally require Silvaco to indemnify the customer against claims that the Company's software infringes third-party patent, copyright, trademark or other proprietary rights. Such indemnification obligations are generally limited in a variety of industry-standard respects, including by affirming Silvaco's right to replace an infringing product.

Significant judgments

Silvaco's contracts typically include promises to transfer licenses, which enables customers to use the Company's software, and services. Judgment is required to determine if the promises are separate performance obligations, and if so, to allocate the transaction price to each performance obligation. The Company uses the estimated standalone selling price method to allocate the transaction price for each performance obligation. The estimated standalone selling price is determined using all information reasonably available to the Company, including market conditions and other observable inputs, historical pricing and the value relationship between Silvaco's various product and service offerings. The corresponding revenues are recognized as the related performance obligations are satisfied.

Accounts receivable, contract assets and contract liabilities

The timing of revenue recognition may differ from the timing of invoicing to customers, and these timing differences result in receivables (billed), contract assets (unbilled), or contract liabilities (deferred revenue) on the Company’s consolidated balance sheets. The Company records a contract asset when revenue is recognized prior to the right to invoice, or deferred revenue when revenue is recognized subsequent to invoicing. For time-based software agreements, customers are generally invoiced in equal, quarterly amounts, although some customers are invoiced in single or annual amounts. The Company records an unbilled receivable when revenue is recognized and it has an unconditional right to invoice and receive payment. The Company records an accounts receivable upon invoicing.

Financing

Silvaco is required to adjust promised amounts of consideration for the effects of the time value of money if the timing of the payments provides the customer or the Company with a significant financing benefit. Silvaco considers various factors in assessing whether a financing component exists, including the duration of the contract, market interest rates and the timing of payments. The Company's contracts do not include a significant financing component requiring adjustment to the transaction price.

Sales commissions

Sales commissions associated with multi-year contracts for new term-based licenses are deferred, capitalized, and amortized over an estimated customer life of five years. Capitalized sales commissions are included in prepaid expenses and other current assets and other assets on the Company's consolidated balance sheets. Amortization of sales commissions is included in selling and marketing expenses on the Company's consolidated statements of loss. The Company applies a practical expedient to expense sales commissions as incurred when the amortization period would have been one year or less.

Cash and cash equivalents

Cash and cash equivalents consist of bank deposits and highly liquid investments in marketable securities with original maturities of three months or less at the time of purchase. The Company’s cash and cash equivalents as of December 31, 2025 and 2024 consisted of bank deposits, money market funds, and U.S. treasury securities with a fair value of $9.0 million and $19.6 million, respectively.

Property and equipment

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the various classes of assets, as follows:




Leasehold improvements						Shorter of remaining life of lease, including option to renew that is expected to be exercised, or useful life of improvement.
Computers and software						5 years
Servers and networking equipment						4 years
Vehicles						5 years

Repairs and maintenance are expensed as incurred. Gains or losses from the sale or retirement of property and equipment and repairs and maintenance charges are included within general and administrative expenses in the consolidated statements of loss.

Research and development

Research and development (“R&D”) costs consist primarily of personnel costs for product development, engineering, quality assessment and other related costs associated with the development of new products, enhancements to existing products, quality assurance and testing. R&D costs are expensed as incurred. Internally developed software costs required to be capitalized as defined by ASC 350-40, Internal-Use Software are not material to the Company's consolidated financial statements.

Business Combination

To determine whether transactions should be accounted for as acquisitions of assets or business combinations, the Company makes certain judgments, which include assessment of the inputs, processes, and outputs associated with the acquired set of activities. If the Company determines that substantially all of the fair value of gross assets included in a transaction is concentrated in a single asset (or a group of similar assets), the assets will not represent a business. To be considered a business, the assets in a transaction need to include an input and a substantive process that together significantly contribute to the ability to create outputs.

The Company allocates the fair value of the purchase consideration to the assets acquired and liabilities assumed based on their estimated fair values at the acquisition date. The fair values of intangible assets are determined utilizing information available near the acquisition date based on expectations and assumptions that are deemed reasonable by management. Given the considerable judgment involved in determining fair values, the Company typically obtains assistance from third-party valuation specialists for significant items. If the transaction is deemed to be a business combination, any excess of the purchase price over the estimated fair values of net assets acquired is recorded as goodwill. Transaction costs are expensed as incurred. Amounts recorded in a business combination may change during the measurement period, which is a period not to exceed one year from the date of acquisition, as additional information about conditions that existed as of the acquisition date becomes available.

Goodwill and other intangible assets

Goodwill represents the excess of the fair value of consideration transferred over the fair value of net identifiable assets acquired. Other intangible assets consist of trade name, customer relationships, developed technology, noncompete agreements and licensed IP which are amortized over their useful lives of two to twelve years. Intangible assets are reviewed for impairment whenever events or changes in circumstances indicate an asset’s carrying value may not be recoverable.

Goodwill is not amortized but is tested annually for impairment and more often if there is an indicator of impairment that would more likely than not reduce the fair value of the Company’s single reporting unit below its carrying amount. Goodwill is considered impaired if the carrying value of the reporting unit exceeds its fair value.

No indicators of impairment or impairment charges were identified or recorded to goodwill or other intangible assets during the years ended December 31, 2025 and 2024.

Impairment of long-lived assets

The Company continually monitors events and changes in circumstances that could indicate the carrying amounts of long-lived assets, including property and equipment, may not be recoverable. Accordingly, when indicators of impairment are present, the Company evaluates the carrying value of such assets in relation to the future undiscounted cash flows of the underlying assets. The Company's policy is to record an impairment loss when it is determined that the carrying amount of the assets may not be recoverable.

Deferred transaction costs

Deferred offering costs are capitalized and consist of fees and expenses incurred in connection with the Company’s IPO, including the legal, accounting, printing, and other IPO-related costs.

Concentrations of credit risk

Accounts receivable from customers representing 10% or more of the Company’s total accounts receivable were as follows:


	Year Ended December 31,
	2025		2024
Customer A	14	%	*
Customer B	11	%	*
Customer C	10	%	*
Customer D	*		21	%
Customer E	*		15	%

* Customer accounted for less than 10% of total accounts receivable at period end.

Revenue from customers representing 10% or more of the Company’s total revenue was as follows:


	Year Ended December 31,
	2025		2024
Customer B	14	%	15	%

In addition to trade receivables and revenue, the Company's cash on deposit with financial institutions is also exposed to concentration risk. The Company's cash on deposit with financial institutions is insured through various public and private bank deposit insurance programs, foreign and domestic; however, a significant portion of cash balances held as of December 31, 2025 and 2024 exceeded insured limits.

As of December 31, 2025, $11.0 million, or 64%, of the Company’s cash, cash equivalents and restricted cash was maintained with one financial institution, where the Company’s current deposits are in excess of federally insured limits, and $5.5 million, or 55%, was held by the Company’s foreign subsidiaries.

Marketable securities

The Company’s investments in marketable securities have been classified and accounted for as available-for-sale and are recorded at estimated fair value. The Company’s available-for-sale marketable securities are comprised of money market funds, U.S. treasury securities and U.S. government securities. The Company classifies its investments with original maturities of three months or less when acquired as cash equivalents. The Company classifies its marketable securities with original maturities of longer than three months but within twelve months as of the reporting date as current marketable securities. Marketable securities with maturities of twelve months or longer as of the reporting date are classified as non-current marketable securities. Purchase discounts are accreted using the effective interest method over the life of the related security and such accretion is included in interest income in the consolidated statements of loss.

The Company did not recognize any other-than-temporary impairment on its marketable securities during the years ended December 31, 2025 and 2024. Unrealized gains and losses (excluding other-than-temporary impairment and credit loss) on available-for-sale marketable securities are reported in other comprehensive loss on the consolidated statements of comprehensive loss. Credit-related unrealized losses are recognized as an allowance on the consolidated balance sheets with a corresponding charge to interest expense and other income (expense), net on the consolidated statements of loss. The cost of securities sold is based on the specific identification method and realized gains and losses are reported in interest income and interest expense and other income (expense), net on the consolidated statements of loss, respectively.

Allowance for credit losses

The Company assesses its ability to collect outstanding receivables and contract assets and provides customer-specific allowances, allowances for credit losses for the portion of receivables and contract assets that are estimated to be uncollectible. Allowances for credit losses are based on historical collection experience and expected credit losses, customer specific financial condition, current economic trends in the customer's industry and geographic region, changes in customer demand and the overall economic climate in the market the Company serves. Provisions for the allowance for expected credit losses attributable to bad debt are recorded as general and administrative expenses in the consolidated statements of loss. Account balances deemed uncollectible are written off, net of actual recoveries. If circumstances related to specific customers or the market the Company serves change, the Company’s estimate of the recoverability of its accounts receivable and contract assets could be further adjusted. The Company does not have any material account receivable or contract asset balances that are past due and has not written off any significant balances in its portfolio against the allowance for credit losses for the periods presented.

Income taxes

The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period of the enactment date.

The Company records net deferred tax assets to the extent it believes these assets will more likely than not be realized. In making such determinations, the Company considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent financial operations. In the event the Company determines that Silvaco will be able to realize deferred tax assets for which a valuation allowance was used to reduce their carrying value, the adjustment to the valuation allowance will be recorded as a reduction to the provision for income taxes.

Tax benefits related to uncertain tax positions taken or expected to be taken on a tax return are recorded when such benefits meet a more-likely-than-not threshold. Otherwise, these tax benefits are recorded when a tax position has been effectively settled, which means that the statute of limitations has expired, or the appropriate taxing authority has completed its examination even though the statute of limitations remains open.

The Company recognizes interest and penalties related to income taxes within the income tax provision line in the consolidated statements of loss. Accrued interest and penalties are included within accrued income taxes in the consolidated balance sheets.

Foreign currencies

The financial statements of Silvaco's international subsidiaries with local functional currencies are translated to U.S. dollars upon consolidation. Assets and liabilities are translated at the effective exchange rate on the balance sheet date. Results of operations are translated at average exchange rates, which approximate rates in effect when the underlying transactions occurred. For the years ended December 31, 2025 and 2024, the Company recorded foreign currency translation adjustments of $0.5 million and $0.4 million, respectively, within accumulated other comprehensive loss.

Certain sales and intercompany transactions are denominated in foreign currencies. These transactions are recorded in functional currency at the appropriate exchange rate on the transaction date. Monetary assets and liabilities denominated in a currency other than the Company's functional currency or its subsidiaries' functional currencies are remeasured at the effective exchange rate on the balance sheet date. Gains and losses resulting from foreign exchange transactions are included in interest expense and other income (expense), net in the consolidated statements of loss.

Accumulated other comprehensive loss

Accumulated other comprehensive loss is composed entirely of foreign currency translation adjustments and unrealized gains and losses on marketable securities.

Stock-based compensation

The Company accounts for stock-based compensation in accordance with ASC Topic 718, Compensation - Stock Compensation, which establishes the accounting for transactions in which an entity exchanges its equity instruments for goods or services. Under the provisions of the authoritative guidance, stock-based compensation expense is measured at the grant date, based on the fair value of the award, and is recognized as an expense over the requisite employee service period (generally the vesting period), net of actual forfeitures. For stock-based payment awards that contain performance criteria, stock-based compensation expense is recorded when the achievement of the performance condition is considered probable of achievement and is recorded on a straight-line basis over the requisite service period. If such performance criteria are not met, no compensation expense is recognized and any recognized compensation expense is reversed. For awards with market and service conditions, the Company recognizes stock-based compensation on a straight-line basis for all awards for which the service conditions are met, regardless of whether the market condition is achieved.

Prior to the IPO in May 2024, the Company did not record stock-based compensation expense. The restricted stock units (“RSUs”) granted under the 2014 Plan generally had two vesting requirements, a service-based requirement (the “Time-Based Requirement”) and a liquidity event requirement (the “Liquidity Event Requirement”), and the satisfaction of the Liquidity Event Requirement was not deemed probable. Refer to Note 13, Stock-Based Compensation for additional information.

Prior to January 1, 2024, the Company valued the awards granted using historical estimates of the fair value of Silvaco’s common stock. These third-party valuations were performed in accordance with the guidance outlined in the American Institute of Certified Public Accountants Accounting and Valuation Guide, Valuation of Privately-Held Company Equity Securities Issued as Compensation.

Commencing January 1, 2024 and prior to the IPO, the grant date fair value of the awards was derived from an interpolation based on the contemplated listing price of the Company’s anticipated IPO. For RSUs granted after the IPO, the Company used the publicly listed closing stock price on the grant date as the grant date fair value.

Fair value of financial instruments

The Company defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses valuation approaches that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Company determines fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels:

■Level 1 Inputs: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

■Level 2 Inputs: Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly (i.e., as prices) or indirectly (i.e., derived from prices), for substantially the full term of the asset or liability.

■Level 3 Inputs: Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.

As of December 31, 2025 and 2024, the carrying amount of the Company’s cash and cash equivalents, restricted cash, accounts receivable, accounts payable and accrued expenses approximated their fair values due to their short maturities. The Company’s available for sale marketable securities have an amortized costs that approximates fair value, which was determined using quoted prices in active markets for identical assets and if that is unavailable, using third-party inputs which are either directly or indirectly observable, such as reported trades and broker or dealer quotes as of December 31, 2025 and 2024.

Research and development grants and tax subsidies

Silvaco is a recipient of R&D grants and tax subsidies associated with the Company's French and British subsidiaries. Grants and tax subsidies are determined on the basis of eligible R&D expenses incurred during the calendar year. Eligible expenditures include depreciation expenses relating to fixed assets, created or acquired newly, assigned to eligible R&D projects, including patents acquired; costs relating to staff qualifying as scientists or engineers; expenses resulting from outsourced R&D projects; expenses incurred for patent registration or in connection with the defense of patents; and expenses relating to the monitoring of technical developments. The grants and tax subsidies are recorded as a reduction of R&D expense as qualifying expenditures are incurred. Certain tax subsidies can be offset against corporate income tax liabilities payable with respect to the calendar year during which the eligible R&D expenditures were incurred, and any excess credit is refunded to the taxpayer. Certain tax subsidies and all grants are paid to the Company in cash, which are included in prepaid expenses and other current assets in the Company's consolidated balance sheets until the Company receives the cash payment.

Leases

The Company determines if an arrangement is a lease at inception of the contract, which is the date on which the terms of the contract are agreed to, and the agreement creates enforceable rights and obligations. A contract is or contains a lease when the Company has the right to control the use of an identified asset for a period of time. The commencement date of the lease is the date that the lessor makes an underlying asset available for use by the lessee. On the commencement date, leases are evaluated for classification and assets and liabilities are recognized based on the present value of lease payments over the lease term. Leases are classified as either operating or finance leases based on certain criteria. This classification determines the timing and presentation of expenses on the income statement, as well as the presentation of the related cash flows and balance sheet. Operating leases with terms greater than 12 months are recorded on the balance sheet as operating lease right-of use assets, other accrued expenses and liabilities, and non-current operating lease liabilities. The Company has elected the practical expedient to account for the lease and non-lease components as a single lease component for all asset classes.

The lease term used to calculate the lease liability includes options to extend or terminate the lease when it is reasonably certain that the option will be exercised. The right of use (“ROU”) asset is initially measured as the amount of lease liability, adjusted for any initial lease costs, prepaid lease payments and any lease incentives. Variable lease payments, consisting primarily of reimbursement of costs incurred by lessors for common area maintenance, real estate taxes and insurance, are not included in the lease liability and are recognized as they are incurred.

As most of the Company’s leases do not provide an implicit rate, the Company uses the incremental secured borrowing rate at lease commencement to measure ROU assets and lease liabilities. The discount rate used for operating leases is primarily determined based on an analysis of the Company’s incremental secured borrowing rate. The related lease payments are expensed on a straight-line basis over the lease term, including, as applicable, any free-rent period during which the Company has the right to use the asset.

The Company has no finance leases.

Restructuring

The Company's restructuring expenses consist of employee severance, one-time termination benefits and ongoing benefits related to the reduction of its workforce, and other exit and disposal costs. One-time involuntary termination benefits are expensed at the date the entity notifies the employee, unless the employee must provide future service beyond a minimum retention period, in which case the benefits are expensed ratably over the future service period. Ongoing benefits and one-time voluntary termination benefits are expensed when restructuring activities are probable and the benefit amounts are estimable. Other costs primarily consist of termination fees, idle rent and related expenses for exited locations and other costs related to restructuring activities, and are expensed when incurred.

Net Loss per Share

Basic net loss per share is computed based on the weighted average number of shares of common stock outstanding. Diluted net loss per share is computed based on the weighted average number of common shares outstanding increased by dilutive common stock equivalents attributable to RSU grants.

Recently Adopted Accounting Pronouncements and Accounting Guidance Issued and Not Yet Adopted

Recently Adopted Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (“FASB”) issued accounting standard update (“ASU”) No. 2023-09, Income Taxes (Topic 740): Improvement to Income Tax Disclosures to enhance the transparency and decision usefulness of income tax disclosures (“ASU 2023-09”). ASU 2023-09 is only effective for annual periods beginning after December 15, 2024, on a prospective basis. The Company adopted the new standard on a prospective basis with the filing of this Annual Report on Form 10-K. See Note 14, Income Taxes for additional information.

Accounting Guidance Issued and Not Yet Adopted

In November 2024, the FASB issued ASU No. 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Topic 220): Disaggregation of Income Statement Expenses. This ASU requires additional disclosure of certain amounts included in the expense captions presented on the statements of loss as well as disclosures about selling expenses. This ASU is effective on a prospective basis, with the option for retrospective application, for annual periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its consolidated financial statements and related disclosures.

In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets. This ASU provides a practical expedient that allows entities to estimate expected credit losses for current accounts receivable and contract assets assuming that conditions at the balance sheet date remain unchanged over the life of the asset. This ASU is effective for annual periods beginning after December 15, 2025, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the consolidated financial statements.

In September 2025, the FASB issued ASU No. 2025-06, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. This ASU eliminates the accounting consideration of software project development stages to align with the agile method for developing software and enhances the guidance related to assessing the probability of project completion. This ASU is effective for annual periods beginning after December 15, 2027, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this ASU on the consolidated financial statements.

Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2025

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses and other current liabilities consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Litigation settlement(a)	$	8,250	$	11,306
Accrued employee expenses	6,263		6,611
Contingent consideration	1,741		10
Accrued taxes payable	1,333		1,276
Accrued operating expense	1,525		290
Accrued royalties payable(b)	285		215
Other	—		93
Total accrued expenses and other current liabilities	$	19,397	$	19,801

(a)Represents litigation-related charges incurred in connection with the Nangate Litigation described in Note 16, Commitments and Contingencies.

(b)Silvaco has entered into various renewable license agreements under which the Company has been granted access to the licensor's technology and the right to sell the technology in its product line. Royalties are payable to developers of the software at various rates and amounts, which generally are based upon unit sales, revenue or flat fees. Royalty fees are reported in cost of revenue upon delivery pursuant to the terms and conditions of the Company’s contractual obligations.

Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Litigation settlement(a)	$	8,250	$	11,306
Accrued employee expenses	6,263		6,611
Contingent consideration	1,741		10
Accrued taxes payable	1,333		1,276
Accrued operating expense	1,525		290
Accrued royalties payable(b)	285		215
Other	—		93
Total accrued expenses and other current liabilities	$	19,397	$	19,801

(a)Represents litigation-related charges incurred in connection with the Nangate Litigation described in Note 16, Commitments and Contingencies.

Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Liabilities Measured on Recurring Basis

The following tables present the Company's financial assets and liabilities that are measured at estimated fair value on a recurring basis:


	Fair value measurements as of December 31, 2025
	(in thousands)
	Carrying value		Level 1		Level 2		Level 3
Financial assets:
Cash equivalents:
Money market funds	161		161		—		—

Total	161		161		—		—
Available-for-sale marketable securities:
U.S. government agencies securities	1,018		—		1,018		—
Total	1,018		—		1,018		—
Total	$	1,179	$	161	$	1,018	$	—
Liabilities:
Contingent consideration	1,741		—		—		1,741
Total	$	1,741	$	—	$	—	$	1,741

	Fair value measurements as of December 31, 2024
	(in thousands)
	Carrying value		Level 1		Level 2		Level 3
Financial assets:
Cash equivalents:
Money market funds	13,144		13,144		—		—
Total	13,144		13,144		—		—
Available-for-sale marketable securities:
U.S. treasury securities	27,237		—		27,237		—
U.S. government agencies securities	40,619		—		40,619		—
Total	67,856		—		67,856		—
Total	$	81,000	$	13,144	$	67,856	$	—
Liabilities:
Contingent consideration	11		—		—		11
Total	$	11	$	—	$	—	$	11

Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following is a reconciliation of changes in the liability related to contingent consideration:


	Year Ended December 31,
	2025		2024
	(in thousands)
Fair value as of January 1,	$	11	$	112
Change in fair value	94		(27)
Payments of contingent consideration	(46)		(74)
Acquisition	1,682		—
Fair value as of December 31,	$	1,741	$	11

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Segment Reporting and Geographical Concentration - Narrative (Details)	12 Months Ended
	Dec. 31, 2025 segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

Leases - Additional Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Cash paid for operating lease liabilities	$ 1,215	$ 930
Right-of use assets obtained in exchange for operating lease liabilities	$ 2,400	$ 607
Weighted average remaining lease term (in years)	3 years 2 months 15 days	3 years 4 months 28 days
Weighted average discount rate	8.04%	3.00%

Property and Equipment, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Retired property and equipment that was fully depreciated and no longer in service	$ 0.5	$ 0.2
Depreciation expense	$ 0.4	$ 0.3

Segment Reporting and Geographical Concentration

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Segment Reporting and Geographical Concentration

The Company manages its operations through an evaluation of a consolidated business segment that solves semiconductor design challenges by offering affordable and competitive TCAD software, EDA software and SIP to support engineers and researchers across the globe. The chief operating decision maker (‘CODM”), who is the Company’s Chief Executive Officer, reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. As such, the Company’s operations constitute a single operating segment and one reportable segment.

The following table presents a summary of revenue, payroll expenses, which the CODM reviews in assessing Company performance and deciding how to allocate resources, and total other expenses as a reconciliation to consolidated net loss:


	December 31,
	2025		2024
	(in thousands)
Total revenue	$	63,064	$	59,680
Expenses
Compensation expenses	65,812		67,270
All other expenses, net	38,458		31,814
Total expenses	104,270		99,084
Net loss	$	(41,206)	$	(39,404)

Revenue is attributed to geography based upon the country in which the software license is used, or maintenance and services are delivered. The Company's single reportable segment recorded customer revenue from the following geographical areas:


	December 31,
Region	2025		2024
	(in thousands)
United States	$	23,327	$	21,934
China	12,305		11,010
Japan	6,133		10,796
Korea	7,000		3,106
Taiwan	6,818		3,847
All other	7,481		8,987
Total revenue	$	63,064	$	59,680

Property and equipment, net are attributed to geography based on the country where the assets are located. The following table presents a summary of property and equipment by region:


	December 31,
Region	2025		2024
	(in thousands)
United States	$	1,132	$	507
Japan	103		142
China	10		120
All other countries	280		96
Total property and equipment, net	$	1,525	$	865

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Defined Contribution Plan (Details) - USD ($) $ in Millions	12 Months Ended
Defined Contribution Plan (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Retirement Benefits [Abstract]
Employer contributions to the 401(k) Plan	$ 0.8	$ 1.0
Expense related to 401(k) Plan	$ 0.8	$ 0.6

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

For the years ended December 31, 2025 and 2024, intangible assets were classified as follows:


		December 31, 2025
Intangible assets:	Weighted Average Useful Life (in years)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
		(in thousands)
Developed technology	6.7	$	5,780	$	(1,199)	$	4,581
Customer relationships	6.5	14,120		(1,307)		12,813
Trade name	11.8	5,630		(234)		5,396
Non-compete agreements	5.0	20		(20)		—
Licensed IP	5.0	4,979		(1,742)		3,237
Total intangible assets		$	30,529	$	(4,502)	$	26,027


		December 31, 2024
Intangible assets:	Weighted Average Useful Life (in years)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
		(in thousands)
Developed technology	5.0	$	800	$	(666)	$	134
Customer relationships	5.0	90		(90)		—
Non-compete agreements	5.0	20		(17)		3
Licensed IP	5.0	4,979		(747)		4,232
Total intangible assets		$	5,889	$	(1,520)	$	4,369

Schedule of Amortization Expense

Amortization expense was as follows:


		Year Ended December 31,
		2025		2024
	(in thousands)
Cost of revenue		$	995	$	747
Research and development		427		206
General and administrative		1,648		—
Total amortization expense		$	3,070	$	953

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of December 31, 2025, estimated future amortization expense for the intangible assets reflected above was as follows:


Year Ending December 31,
	Amount
	(in thousands)
2026	$	4,408
2027	4,364
2028	4,343
2029	3,596
2030	3,347
Thereafter	5,969
Total net carrying value of intangible assets	$	26,027

Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Leases - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Rent expense	$ 1.7	$ 1.2

Summary of Significant Accounting and Reporting Policies - Schedules of Concentration of Risk, by Risk Factor (Details) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Customer A \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)	14.00%
Customer B \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)	11.00%
Customer B \| Revenue Benchmark
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)	14.00%	15.00%
Customer C \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)	10.00%
Customer D \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)		21.00%
Customer E \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage (in percent)		15.00%

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

The Company completed the acquisitions of the OPC Business in March 2025, Tech-X in April 2025, and Mixel in August 2025, which collectively resulted in an increase to goodwill of $21.0 million during the year ended December 31, 2025. Refer to Note 4, Acquisitions for additional information.

For the years ended December 31, 2025 and 2024, intangible assets were classified as follows:


		December 31, 2025
Intangible assets:	Weighted Average Useful Life (in years)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
		(in thousands)
Developed technology	6.7	$	5,780	$	(1,199)	$	4,581
Customer relationships	6.5	14,120		(1,307)		12,813
Trade name	11.8	5,630		(234)		5,396
Non-compete agreements	5.0	20		(20)		—
Licensed IP	5.0	4,979		(1,742)		3,237
Total intangible assets		$	30,529	$	(4,502)	$	26,027


		December 31, 2024
Intangible assets:	Weighted Average Useful Life (in years)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
		(in thousands)
Developed technology	5.0	$	800	$	(666)	$	134
Customer relationships	5.0	90		(90)		—
Non-compete agreements	5.0	20		(17)		3
Licensed IP	5.0	4,979		(747)		4,232
Total intangible assets		$	5,889	$	(1,520)	$	4,369

The Company completed the acquisitions of the OPC Business in March 2025, Tech-X in April 2025, and Mixel in August 2025 which collectively resulted in an increase of acquired intangibles of $24.7 million during the year ended December 31, 2025. Refer to Note 4, Acquisitions for additional information.

On April 11, 2024, the Company amended its license agreement to sell SIP developed in partnership with NXP Semiconductors Netherlands B.V. (“NXP”) (the “NXP IP”) for total cash consideration of $6.0 million, to be paid over 5 years. The NXP IP has a net book value of $3.2 million as of December 31, 2025 and a useful life of 5 years, which is the length of the license agreement. The Company recorded a corresponding vendor financing obligation related to the license agreement with NXP. Refer to Note 12, Debt and Financing Obligations for additional information.

Amortization expense was as follows:


		Year Ended December 31,
		2025		2024
	(in thousands)
Cost of revenue		$	995	$	747
Research and development		427		206
General and administrative		1,648		—
Total amortization expense		$	3,070	$	953

On January 1, 2025 and 2024, the Company retired $0.1 million and $4.3 million of intangible assets that were fully amortized, respectively.

As of December 31, 2025, estimated future amortization expense for the intangible assets reflected above was as follows:


Year Ending December 31,
	Amount
	(in thousands)
2026	$	4,408
2027	4,364
2028	4,343
2029	3,596
2030	3,347
Thereafter	5,969
Total net carrying value of intangible assets	$	26,027

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Domestic and Foreign Components of Loss Before Income Tax Provisions

The domestic and foreign components of the Company's loss before income tax provision were as follows:


	December 31,
	2025		2024
	(in thousands)
Domestic	$	(46,751)	$	(42,292)
Foreign	2,106		3,372
Loss before income tax provision	$	(44,645)	$	(38,920)

Schedule of Components of Income Tax (Benefit) Provision

The components of the Company's income tax (benefit) provision were as follows:


	December 31,
	2025		2024
	(in thousands)
Current:
Federal	$	48	$	56
State	7		36
Foreign	417		303
Deferred:


Federal	(3,191)		—
State	(425)		—
Foreign	(295)		89
Income tax (benefit) provision	$	(3,439)	$	484

Schedule of Deferred Tax Assets and Liabilities

Significant components of the Company's deferred tax assets and liabilities were as follows:


	December 31,
	2025		2024
	(in thousands)
Deferred tax assets:
Accruals and reserves	$	2,473	$	3,436
Depreciable and amortizable assets	2,278		5,767
Net operating loss carryforward	9,598		766
Tax credits	9,411		8,279
Stock-based compensation expense	455		492
Total deferred tax asset	$	24,215	$	18,740
Valuation Allowance	(24,026)		(18,621)
Net deferred tax asset	$	189	$	119
Deferred tax liabilities
Revenue recognition	(189)		(414)

Depreciable & Amortizable Assets			—
Net deferred tax liability	$	—	$	(295)

Schedule of Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate

The following is a reconciliation of the federal statutory income tax rate to the effective tax rate for the year ended December 31, 2025 pursuant to the disclosure requirements of ASU 2023-09 (in thousands, except percentages):


	Amount		Percent
U.S. Federal Statutory Tax Rate	$	(9,368)	21	%
State and Local Income Taxes, Net of Federal Income Tax Effect(1)	(532)		1	%
Foreign Tax Effects
Other foreign jurisdictions	(296)		—	%
Effect of Cross-Border Tax Laws
Global Intangible low-taxed income	629		(1)	%
Tax Credits
Research and Development Tax Credits	(1,300)		3	%
Changes in Valuation Allowances	4,719		(11)	%
Nontaxable or Nondeductible Items
Non‑deductible stock-based compensation	603		(1)	%
Non‑deductible officer's compensation	470		(1)	%
Tax deficiencies on share-based payments	596		(1)	%
Non-deductible Transaction Costs	538		(1)	%
Other nondeductible items	23		—	%
Worldwide Changes in Unrecognized Tax Benefits	535		(1)	%
Other Adjustments
Other	(56)		—	%
Effective Tax Rate	$	(3,439)	8	%

(1) State taxes in CA and ID made up the majority (greater than 50%) of the tax effect in this category

The following is a reconciliation of the federal statutory income tax rate to the Company's effective tax rate for the year ended December 31, 2024:


	December 31,
	2024
Tax at federal statutory rate	21	%
Tax credits	2	%
Other	(10)	%
Valuation allowance	(14)	%
Effective tax rate	(1)	%

Schedule of Income Taxes Paid, Net of Refunds

The following is a summary of income taxes paid, net of refunds by jurisdiction pursuant to the disclosure requirements of ASU 2023-09 for the year ended December 31, 2025:


United States - federal	$	(257)
United States - states and local	11
Total U.S. federal, state and local	(246)
Foreign	—
Total income taxes paid, net of refunds	$	(246)

Schedule of Unrecognized Tax Benefits Roll Forward

The following table summarizes the activity related to the Company's gross unrecognized tax benefits:


	December 31,
	2025		2024
	(in thousands)
Balance as of January 1,	$	7,959	$	7,247
Increases related to prior year tax positions	—		—
Increases related to current year tax positions	719		712
Decreases related to prior year tax positions	—		—
Balance as of December 31,	$	8,678	$	7,959

Restructuring - Narrative (Details) $ in Millions	1 Months Ended
Restructuring - Narrative (Details) $ in Millions	Oct. 31, 2025 position	Dec. 31, 2025 USD ($)
Restructuring and Related Activities [Abstract]
Number of terminated employees \| position	52
Remaining obligations \| $		$ 0.1

Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 47.1
Recognized revenue included in deferred revenue	$ 6.7	$ 6.7
Expected deferred revenue to be recognized within the next twelve months (in percent)	68.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation (in percent)	54.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period (in months)	12 months

Acquisitions - Assets Acquired And Liabilities Assumed - Tech-X Corporation (Details) - USD ($) $ in Thousands	Apr. 29, 2025	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Goodwill	$ 4,385	$ 30,070	$ 9,026
Contingent consideration		$ 1,741	$ 11
Tech-X Corporation (“Tech-X”)
Business Combination [Line Items]
Cash	851
Accounts receivable	749
Prepaid expenses and other current assets	75
Property and equipment	33
Accounts payable	(104)
Accrued expenses and other current liabilities	(303)
Deferred tax liability	(572)
Deferred revenue	(80)
Net assets acquired and liabilities assumed	8,174
Contingent consideration	$ 1,700
Tech-X Corporation (“Tech-X”) \| Customer relationships
Business Combination [Line Items]
Useful Life (in years)	6 years
Fair Value	$ 1,730
Tech-X Corporation (“Tech-X”) \| Developed technology
Business Combination [Line Items]
Useful Life (in years)	7 years
Fair Value	$ 1,280
Tech-X Corporation (“Tech-X”) \| Trade name
Business Combination [Line Items]
Useful Life (in years)	2 years
Fair Value	$ 130

Summary of Significant Accounting and Reporting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	2,821,692	1,580,666
Unvested RSUs
Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	2,627,036	1,503,662
Employee stock purchase plan
Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	169,965	77,004
Contingently issuable shares to CEO
Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	24,691	0

Property and Equipment, Net

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Property and Equipment, Net

The Company’s property and equipment at December 31, 2025 and 2024 consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Computer software	$	6,108	$	5,944
Equipment	926		512
Buildings and improvements	94		198
Leasehold improvements	312		212
Furniture and fixtures	95		139
Total property and equipment	7,535		7,005
Less accumulated depreciation	(6,010)		(6,140)
Total property and equipment, net	$	1,525	$	865

During the years ended December 31, 2025 and 2024, the Company retired $0.5 million and $0.2 million of property and equipment that was fully depreciated and no longer in service. Depreciation expense was $0.4 million and $0.3 million for the years ended December 31, 2025 and 2024, respectively.

Segment Reporting and Geographical Concentration - Reconciliation Of Revenue, Payroll, And Other Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Total revenue	$ 63,064	$ 59,680
Net loss	(41,206)	(39,404)
Reportable Segment
Segment Reporting Information [Line Items]
Total revenue	63,064	59,680
Compensation expenses	65,812	67,270
All other expenses, net	38,458	31,814
Total expenses	104,270	99,084
Net loss	$ (41,206)	$ (39,404)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Cover - USD ($)	12 Months Ended
Cover - USD ($)	Dec. 31, 2025	Mar. 09, 2026	Jun. 30, 2025
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2025
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-42043
Entity Registrant Name	Silvaco Group, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-1503712
Entity Address, Address Line One	4701 Patrick Henry Drive
Entity Address, Address Line Two	Building #23
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054
City Area Code	408
Local Phone Number	567-1000
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	SVCO
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction	false
Entity Shell Company	false
Entity Public Float			$ 45,140,230
Entity Common Stock, Shares Outstanding		31,440,906
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of Part III of this Form 10-K are incorporated by reference from the registrant’s definitive proxy statement for its 2026 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Form 10-K. Except with respect to information specifically incorporated by reference in this Form 10-K, the proxy statement is not deemed to be filed as part of this Form 10-K.
Entity Central Index Key	0001943289
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false

Summary of Significant Accounting and Reporting Policies - Schedule of Property, Plant and Equipment (Details)	Dec. 31, 2025
Computers and software
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Servers and networking equipment
Property, Plant and Equipment [Line Items]
Useful life (in years)	4 years
Vehicles
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years

Related Parties	12 Months Ended
Related Parties	Dec. 31, 2025
Related Party Transactions [Abstract]
Related Parties	Related Parties The Company has a commercial lease agreement with Kipee International, Inc., a real estate entity controlled by a principal stockholder and member of the Company’s board of directors, for Silvaco’s corporate office in Santa Clara, California. In connection with this lease arrangement, the Company recorded rent expense of $0.2 million and $0.2 million during the years ended December 31, 2025 and 2024. The Company's original three year commercial office lease for this property commenced on May 1, 2022, and expired on April 30, 2025. The Company and Kipee International renewed the lease, effective as of May 1, 2025, for a three year period ending on April 30, 2028. The Company's right-of-use asset and operating lease liability for this property is $0.6 million as of December 31, 2025. The Company has international office leases with New Horizons (Cambridge) LTD (“NHC”) and New Horizons France (“NHF”) in Cambridgeshire, England and Grenoble, France, respectively. NHC and NHF are real estate entities owned and controlled by a principal stockholder and member of the Company’s board of directors. In connection with these lease arrangements, the Company recorded rent expense of $0.3 million during each of the years ended December 31, 2025 and 2024. The Company's right-of-use asset and operating lease liability under the NHC lease, which expires on December 31, 2029, is $0.8 million as of December 31, 2025. The Company's right-of-use asset and operating lease liability under the NHF lease, which expires on April 30, 2026, is $20.9 thousand as of December 31, 2025. On June 13, 2022, Silvaco entered into a $4.0 million line of credit with a principal stockholder and member of the Company’s board of directors (the “2022 Credit Line”). In connection with this line of credit, the Company recorded interest expense of $0.1 million during the year ended December 31, 2024. The outstanding amounts due under the 2022 Credit Line were repaid in full and the 2022 Credit Line was terminated in May 2024. Refer to Note 12, Debt and Financing Obligations for additional information. In February 2012, Gu-Guide LP, a real estate entity controlled by a principal stockholder and member of the Company’s board of directors, Bank of the West and the Company, as guarantor, entered into a loan agreement pursuant to which Bank of the West agreed to lend Gu-Guide LP certain amounts of money (the “Loan”). The Loan was secured by a 9,000 square foot building located in Santa Clara, California. The Loan was repaid in full and the Company was released from the guarantee in July of 2024. In the event that the proceeds from the foreclosure of the foregoing collateral were insufficient to repay the outstanding amounts under the Loan, the Company guaranteed the repayment of the outstanding amounts under the Loan. In May 2025, the Company and two of our principal stockholders and members of our board of directors (the “Co-Defendants”) agreed to a Settlement Agreement in connection with a trial court judgment awarded to the Nangate Parties. The $32.5 million settlement (the “Settlement Payment”) consists of $16.0 million payable on June 18, 2025, $4.1 million payable on August 15, 2025, $4.1 million payable on November 14, 2025 and final payment of $8.3 million payable on February 13, 2026. Following the execution of the Settlement Agreement, the Co-Defendants, each a principal stockholder of the Company and a member of the Company’s board of directors, executed an apportionment agreement with the Company under which the Co-Defendants agreed to bear 25% of the Settlement Payment, with the Company bearing the remaining 75%. During the year ended December 31, 2025, the Company made payments of $24.3 million on behalf of the Company and the Co-Defendants, which included $8.1 million contributed by the Co-Defendants in accordance with the apportionment agreement. The Company recorded a litigation settlement expense of $13.1 million and $11.3 million during the years ended December 31, 2025 and 2024 related to the Settlement Agreement, respectively. As of December 31, 2025, the Company’s remaining liability under the Settlement Agreement is $8.3 million, which is included in accrued expenses and other current liabilities on the consolidated balance sheet. Refer to Note 16, Commitments and Contingencies, for additional information.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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+ Details

Income Taxes - Schedule of Domestic and Foreign Components of Loss Before Income Tax Provisions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Domestic	$ (46,751)	$ (42,292)
Foreign	2,106	3,372
Loss before income tax provision	$ (44,645)	$ (38,920)

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details

Summary of Significant Accounting and Reporting Policies - Schedule of Accounts Receivable, Allowance for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 777	$ 539
Provision for credit losses	(80)	351
Accounts written off	(213)	(113)
Ending balance	$ 484	$ 777

Income Taxes

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Income Taxes

The domestic and foreign components of the Company's loss before income tax provision were as follows:


	December 31,
	2025		2024
	(in thousands)
Domestic	$	(46,751)	$	(42,292)
Foreign	2,106		3,372
Loss before income tax provision	$	(44,645)	$	(38,920)

The components of the Company's income tax (benefit) provision were as follows:


	December 31,
	2025		2024
	(in thousands)
Current:
Federal	$	48	$	56
State	7		36
Foreign	417		303
Deferred:


Federal	(3,191)		—
State	(425)		—
Foreign	(295)		89
Income tax (benefit) provision	$	(3,439)	$	484

During the year ended December 31, 2025, the Company recorded a U.S. deferred tax benefit which primarily relates to the partial release of the valuation allowance on the Company’s net deferred tax assets. Such partial release of the valuation allowance is primarily attributable to deferred liabilities recognized with the acquisitions of Tech-X and Mixel. Upon acquisition, the deferred tax liabilities reduce the Company’s net deferred tax asset balance and accordingly require a partial release of the valuation allowance with an offsetting income tax benefit.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company's deferred tax assets and liabilities were as follows:


	December 31,
	2025		2024
	(in thousands)
Deferred tax assets:
Accruals and reserves	$	2,473	$	3,436
Depreciable and amortizable assets	2,278		5,767
Net operating loss carryforward	9,598		766
Tax credits	9,411		8,279
Stock-based compensation expense	455		492
Total deferred tax asset	$	24,215	$	18,740
Valuation Allowance	(24,026)		(18,621)
Net deferred tax asset	$	189	$	119
Deferred tax liabilities
Revenue recognition	(189)		(414)

Depreciable & Amortizable Assets			—
Net deferred tax liability	$	—	$	(295)


	Amount		Percent
U.S. Federal Statutory Tax Rate	$	(9,368)	21	%
State and Local Income Taxes, Net of Federal Income Tax Effect(1)	(532)		1	%
Foreign Tax Effects
Other foreign jurisdictions	(296)		—	%
Effect of Cross-Border Tax Laws
Global Intangible low-taxed income	629		(1)	%
Tax Credits
Research and Development Tax Credits	(1,300)		3	%
Changes in Valuation Allowances	4,719		(11)	%
Nontaxable or Nondeductible Items
Non‑deductible stock-based compensation	603		(1)	%
Non‑deductible officer's compensation	470		(1)	%
Tax deficiencies on share-based payments	596		(1)	%
Non-deductible Transaction Costs	538		(1)	%
Other nondeductible items	23		—	%
Worldwide Changes in Unrecognized Tax Benefits	535		(1)	%
Other Adjustments
Other	(56)		—	%
Effective Tax Rate	$	(3,439)	8	%

(1) State taxes in CA and ID made up the majority (greater than 50%) of the tax effect in this category

The following is a reconciliation of the federal statutory income tax rate to the Company's effective tax rate for the year ended December 31, 2024:


	December 31,
	2024
Tax at federal statutory rate	21	%
Tax credits	2	%
Other	(10)	%
Valuation allowance	(14)	%
Effective tax rate	(1)	%

The following is a summary of income taxes paid, net of refunds by jurisdiction pursuant to the disclosure requirements of ASU 2023-09 for the year ended December 31, 2025:


United States - federal	$	(257)
United States - states and local	11
Total U.S. federal, state and local	(246)
Foreign	—
Total income taxes paid, net of refunds	$	(246)

Management establishes a valuation allowance for those deductible temporary differences when it is more likely than not that the benefit of such deferred tax assets will not be recognized. The ultimate realization of deferred tax assets is dependent upon the Company's ability to generate taxable income during periods in which the temporary differences become deductible. Management regularly reviews the deferred tax assets for recoverability and establishes a valuation allowance based on historical taxable income, projected future taxable income, and the expected timing of the reversals of existing temporary differences. Through the year ended December 31, 2025, management believes that it is more likely than not that the deferred tax assets will not be realized, such that a full valuation allowance has been recorded.

During the years ended December 31, 2025 and 2024, the valuation allowance increased by $5.4 million and $6.4 million, respectively.

As of December 31, 2025, the Company had net operating loss (“NOL”) carryforwards for federal income tax purposes of $39.2 million and federal research and development credits of $8.2 million which begin expiring in 2028.

As of December 31, 2025, the Company had net operating loss carryforwards for state income tax purposes of $16.3 million which begin expiring in 2034 and state research and development credits of $9.2 million which begin expiring in 2026.

The Company has not recorded a provision for deferred U.S. tax expense that could result from the remittance of foreign undistributed earnings since the Company intends to reinvest the earnings in its foreign subsidiaries indefinitely.

The following table summarizes the activity related to the Company's gross unrecognized tax benefits:


	December 31,
	2025		2024
	(in thousands)
Balance as of January 1,	$	7,959	$	7,247
Increases related to prior year tax positions	—		—
Increases related to current year tax positions	719		712
Decreases related to prior year tax positions	—		—
Balance as of December 31,	$	8,678	$	7,959

The Company records unrecognized tax benefits, where appropriate, for all uncertain income tax positions. The Company recorded unrecognized tax benefits for uncertain tax positions of approximately $8.7 million as of December 31, 2025, of which $1.4 million, if recognized, would impact the effective tax rate.

The Company recognizes interest and/or penalties related to uncertain tax positions in income tax expense. To the extent accrued interest and penalties do not ultimately become payable, amounts accrued will be reduced and reflected as a reduction of the overall income tax provision in the period that such determination is made. During the years ended December 31, 2025 and 2024, interest and penalties recorded in the consolidated statements of loss were each $22 thousand. The amounts of accrued interest and penalties recorded on the consolidated balance sheets as of December 31, 2025 and 2024 were $111 thousand and $99 thousand, respectively. The Company does not believe there will be material changes in its unrecognized tax positions over the next twelve months.

The Company files income tax returns in the U.S. federal jurisdiction, various state jurisdictions and certain foreign jurisdictions. The Company is not currently under audit by the Internal Revenue Service or other similar state, local, and foreign authorities. All tax years remain open to examination by major taxing jurisdictions to which the Company is subject for a period of 3 years for federal and 4 years for states, after the utilization of NOLs and credits.

The Company is not currently under audit for U.S. federal income tax or in any state tax jurisdiction. The statute of limitation for the U.S. federal income tax return is 3 years, and for most states is 5 years. The Company is also not under audit in any foreign jurisdiction. The statue of limitations for the foreign locations range from 3 years (China and France), to 10 years (Vietnam).

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147477617/942-740-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
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-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478822/944-740-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 5: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477891/740-270-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-URI https://asc.fasb.org/740/tableOfContent

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-14

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

Debt and Financing Obligations (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Schedule of Contractual Obligation, Fiscal Year Maturity

The Company’s vendor financing obligation is comprised of the following payments as of December 31, 2025:


For the year ending December 31,	Amount
	(in thousands)
2026	$	1,200
2027	1,200
2028	1,200
Total undiscounted cash flows	$	3,600
Less: Imputed interest	397
Present value of vendor financing obligation	$	3,203
Vendor financing obligation, current	$	1,165
Vendor financing obligation, non-current	$	2,038

Segment Reporting and Geographical Concentration (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated


	December 31,
	2025		2024
	(in thousands)
Total revenue	$	63,064	$	59,680
Expenses
Compensation expenses	65,812		67,270
All other expenses, net	38,458		31,814
Total expenses	104,270		99,084
Net loss	$	(41,206)	$	(39,404)

Schedule of Revenue from External Customers by Geographic Areas


	December 31,
Region	2025		2024
	(in thousands)
United States	$	23,327	$	21,934
China	12,305		11,010
Japan	6,133		10,796
Korea	7,000		3,106
Taiwan	6,818		3,847
All other	7,481		8,987
Total revenue	$	63,064	$	59,680

Schedule of Long-Lived Assets by Geographic Areas

Property and equipment, net are attributed to geography based on the country where the assets are located. The following table presents a summary of property and equipment by region:


	December 31,
Region	2025		2024
	(in thousands)
United States	$	1,132	$	507
Japan	103		142
China	10		120
All other countries	280		96
Total property and equipment, net	$	1,525	$	865

Segment Reporting and Geographical Concentration - Revenues And Property And Equipment By Geographical Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 63,064	$ 59,680
Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	63,064	59,680
Total property and equipment, net	1,525	865
United States \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	23,327	21,934
Total property and equipment, net	1,132	507
China \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	12,305	11,010
Total property and equipment, net	10	120
Japan \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	6,133	10,796
Total property and equipment, net	103	142
Korea \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	7,000	3,106
Taiwan \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	6,818	3,847
All other countries \| Reportable Segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	7,481	8,987
Total property and equipment, net	$ 280	$ 96

Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities

12 Months Ended

Dec. 31, 2025

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Litigation settlement(a)	$	8,250	$	11,306
Accrued employee expenses	6,263		6,611
Contingent consideration	1,741		10
Accrued taxes payable	1,333		1,276
Accrued operating expense	1,525		290
Accrued royalties payable(b)	285		215
Other	—		93
Total accrued expenses and other current liabilities	$	19,397	$	19,801

(a)Represents litigation-related charges incurred in connection with the Nangate Litigation described in Note 16, Commitments and Contingencies.

Other non-current liabilities as of December 31, 2025 and 2024 consisted primarily of liabilities associated with asset retirement obligations.

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Our cybersecurity risk management program is part of our overall approach to enterprise risk management. Our cybersecurity risk management program seeks to protect our information systems by managing and reducing material risks from cybersecurity threats and by responding to and mitigating cybersecurity incidents. We have designed our cybersecurity risk management program using certain industry practices and frameworks as a guide, including those established by the International Organization for Standardization and the National Institute of Standards and Technology, although we may not meet all technical standards, specifications, or requirements. We employ a cross-functional approach to preserving the confidentiality, security and availability of the employee, customer, supplier, and partner information that we collect and store. We have implemented cybersecurity processes, measures and controls to assist management in our assessment, identification and management of risks from cybersecurity threats. Our security information and event management system and team, in coordination with our edge security, monitor the events, analyze threats, and coordinate with our incident response team pursuant to our incident response plan, which includes the process to be followed for reporting of incidents. Our cybersecurity risk management involves identifying information assets and potential threats, assessing and prioritizing risks, employing various tools and techniques, including vulnerability scanning and penetration testing. Based on the risk assessment, appropriate security measures are implemented. We conduct annual and ongoing security awareness and behavioral change training for employees to educate them on cybersecurity best practices and train them to recognize phishing attempts. We also assess and manage cybersecurity risks associated with third-party service providers, including those in our supply chain or vendors who have access to our data or systems. Our cybersecurity process is iterative, with regular reviews and updates to help improve and respond to a dynamic and continuously evolving threat landscape. In the last three fiscal years, we have not experienced a cybersecurity incident which has been determined to be material, and the expenses we have incurred from cybersecurity incidents and threats were immaterial, including penalties and settlements, of which there were none.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Our cybersecurity risk management program is part of our overall approach to enterprise risk management.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Our SVP, Global Operations, Brian Bradburn, is responsible for monitoring the prevention, mitigation, detection, and remediation of cybersecurity incidents and reports the same to the Audit Committee of the Board each quarter. Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer. The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	Our SVP, Global Operations, Brian Bradburn, is responsible for monitoring the prevention, mitigation, detection, and remediation of cybersecurity incidents and reports the same to the Audit Committee of the Board each quarter. Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer. The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Role of Management [Text Block]	Our SVP, Global Operations, Brian Bradburn, is responsible for monitoring the prevention, mitigation, detection, and remediation of cybersecurity incidents and reports the same to the Audit Committee of the Board each quarter. Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer. The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Our SVP, Global Operations, Brian Bradburn, is responsible for monitoring the prevention, mitigation, detection, and remediation of cybersecurity incidents and reports the same to the Audit Committee of the Board each quarter. Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer. The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	Our SVP, Global Operations, Brian Bradburn, is responsible for monitoring the prevention, mitigation, detection, and remediation of cybersecurity incidents and reports the same to the Audit Committee of the Board each quarter. Mr. Bradburn has over 10 years of experience as an information technology professional and reports to the Chief Executive Officer. The Audit Committee has been delegated the responsibility for fulfilling the Board’s oversight responsibilities regarding cybersecurity risk.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Fair Value of Financial Instruments - Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 11	$ 112
Change in fair value	$ 94	$ (27)
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest expense and other income (expense), net	Interest expense and other income (expense), net
Payments of contingent consideration	$ (46)	$ (74)
Acquisition	1,682	0
Ending balance	$ 1,741	$ 11

Revenue

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Revenue

The Company's revenue is derived principally from software licensing, customization and related maintenance and services, which are generally accounted for as separate performance obligations with differing revenue recognition patterns. Arrangements with both software licenses and customization services are accounted for as a combined performance obligation. The transaction price is allocated to each distinct performance obligation based on the relative standalone selling price.

Revenue from software licenses is classified as software license revenue. Software license revenue is recognized upfront upon delivery of the licensed software. Revenue associated with the license of the Company’s SIP is classified as software license revenue and recognized as revenue (i) upfront upon delivery of the standard SIP license, or (ii) over time when customization services are combined with the SIP license, as specific contractual milestones are met and incremental functionality is delivered to the customer.

Maintenance and service revenue, which consists of both PCS for software licenses and support services for SIP licenses, is recognized ratably over the term of the contract period. Professional services revenue, which is classified as maintenance and service revenue, is recognized based on when the Company delivers the related service pursuant to the terms of the arrangement.

Customer contracts

The Company accounts for a contract with a customer when both parties have approved the contract and are committed to perform their respective obligations, each party’s rights and payment terms can be identified, the contract has commercial substance, and it is probable the Company will collect substantially all of the consideration it is entitled to.

For multi-year software licenses, the Company generally invoices customers annually at the beginning of each annual coverage period.

The contract balances of the Company’s accounts receivable and contract assets, both of which are net of allowance for expected credit losses, and deferred revenue were as follows:


	Contract Balances
	December 31, 2025		December 31, 2024		January 1, 2024
	(in thousands)
Accounts receivable, net	$	9,710	$	9,211	$	4,006
Contract assets, net	$	27,634	$	24,543	$	14,999
Deferred revenue	$	15,908	$	11,090	$	12,953

Transaction Price Allocated to the Remaining Performance Obligations

As of December 31, 2025, approximately $47.1 million of revenue is expected to be recognized from remaining performance obligations. This figure represents contracted revenue that has not yet been recognized, which includes both deferred revenue and backlog, net of cancellations and adjustments. The Company's backlog represents installment billings for periods beyond the current billing cycle. The Company expects to recognize revenue on approximately 54% of these remaining performance obligations over the next 12 months, with the remaining balance recognized thereafter.

Deferred Revenue

Deferred revenue is comprised mainly of unearned revenue related to PCS on software licenses and pending software license and SIP license deliveries. Deferred revenue also includes contracts for professional services to be performed in the future.

During each of the years ended December 31, 2025 and 2024, the Company recognized revenue of $6.7 million, that was included in the deferred revenue balance at the beginning of fiscal year 2025 and 2024. All other activity in deferred revenue is due to the timing of invoices in relation to the timing of revenue recognized during the years ended December 31, 2025 and 2024 as described above. Approximately 68% of the Company's deferred revenue as of December 31, 2025 is expected to be recognized over the next 12 months with the remainder recognized thereafter.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

Property and Equipment, Net - Schedule Of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 7,535	$ 7,005
Less accumulated depreciation	(6,010)	(6,140)
Total property and equipment, net	1,525	865
Computer software
Property, Plant and Equipment [Line Items]
Total property and equipment	6,108	5,944
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	926	512
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	94	198
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	312	212
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 95	$ 139

Income Taxes - Schedule of Components of Income Tax (Benefit) Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Current:
Federal	$ 48	$ 56
State	7	36
Foreign	417	303
Deferred:
Federal	(3,191)	0
State	(425)	0
Foreign	(295)	89
Income tax (benefit) provision	$ (3,439)	$ 484

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

Income Taxes - Schedule of Income Taxes Paid, Net of Refunds (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)
Income Tax Disclosure [Abstract]
United States - federal	$ (257)
United States - states and local	11
Total U.S. federal, state and local	(246)
Foreign	0
Total income taxes paid, net of refunds	$ (246)

Revenue - Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Jan. 01, 2024
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 9,710	$ 9,211	$ 4,006
Contract assets, net	27,634	24,543	14,999
Deferred revenue	$ 15,908	$ 11,090	$ 12,953

Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands				12 Months Ended
	Jan. 01, 2025	Apr. 11, 2024	Jan. 01, 2024	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Acquired intangibles				$ 24,700
Net book value				26,027	$ 4,369
Mixel Group, Inc. (“Mixel”)
Finite-Lived Intangible Assets [Line Items]
Goodwill, period increase (decrease)				21,000
Licensed IP
Finite-Lived Intangible Assets [Line Items]
License agreement, cash consideration		$ 6,000
License agreement, term extension (in years)		5 years
Net book value				$ 3,237	$ 4,232
Useful life (in years)				5 years	5 years
Depreciated Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets	$ 100		$ 4,300

Acquisitions - Narrative (Details) - USD ($) $ in Thousands				12 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Aug. 01, 2025	Apr. 29, 2025	Mar. 04, 2025	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Acquisition of businesses				$ 32,879	$ 0
Contingent consideration				1,741	$ 11
Optical Proximity Correction Suite of Tools (“OPC Business”)
Business Combination [Line Items]
Acquisition of businesses			$ 11,500
Acquisition-related expenses				600
Tech-X Corporation (“Tech-X”)
Business Combination [Line Items]
Acquisition of businesses		$ 4,100
Acquisition-related expenses				800
Purchase price		$ 8,200
Shares issued in business combination (in shares)		457,666
Shares issued in business combination, fair value		$ 2,400
Maximum contingent consideration payout		2,000
Contingent consideration		$ 1,700
Mixel Group, Inc. (“Mixel”)
Business Combination [Line Items]
Acquisition of businesses	$ 19,700
Acquisition-related expenses				2,000
Purchase price	$ 22,500
Shares issued in business combination (in shares)	643,617
Share value to acquire business	$ 2,800
Revenue since date of acquisition				$ 3,600

Acquisitions - Assets Acquired and Liabilities Assumed - Optical Proximity Correction Suite of Tools (Details) - USD ($) $ in Thousands	Mar. 04, 2025	Dec. 31, 2025	Apr. 29, 2025	Dec. 31, 2024
Business Combination [Line Items]
Goodwill		$ 30,070	$ 4,385	$ 9,026
Optical Proximity Correction Suite of Tools (“OPC Business”)
Business Combination [Line Items]
Contract asset	$ 615
Deferred tax asset	164
Goodwill	5,147
Deferred revenue	(416)
Net assets acquired and liabilities assumed	$ 11,500
Optical Proximity Correction Suite of Tools (“OPC Business”) \| Developed technology
Business Combination [Line Items]
Useful Life (in years)	7 years
Fair Value	$ 1,000
Optical Proximity Correction Suite of Tools (“OPC Business”) \| Customer relationships
Business Combination [Line Items]
Useful Life (in years)	6 years
Fair Value	$ 4,990

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2025
Audit Information [Abstract]
Auditor Firm ID	23
Auditor Name	Baker Tilly US, LLP
Auditor Location	San Jose, California

Acquisitions - Assets Acquired And Liabilities Assumed - Mixel Group, Inc. (Details) - USD ($) $ in Thousands	Aug. 01, 2025	Dec. 31, 2025	Apr. 29, 2025	Dec. 31, 2024
Business Combination [Line Items]
Goodwill		$ 30,070	$ 4,385	$ 9,026
Mixel Group, Inc. (“Mixel”)
Business Combination [Line Items]
Cash	$ 1,040
Accounts receivable	1,736
Contract assets, net	45
Prepaid expenses and other current assets	392
Property and equipment	486
Operating lease right-of-use assets, net	881
Other assets	4
Goodwill	11,512
Accounts payable	(842)
Accrued expenses and other current liabilities	(1,609)
Operating lease liabilities, current	(269)
Deferred revenue, current	(2,653)
Deferred tax liability	(3,209)
Operating lease liabilities, non-current	(612)
Net assets acquired and liabilities assumed	$ 22,502
Mixel Group, Inc. (“Mixel”) \| Customer relationships
Business Combination [Line Items]
Useful Life (in years)	7 years
Fair Value	$ 7,400
Mixel Group, Inc. (“Mixel”) \| Developed technology
Business Combination [Line Items]
Useful Life (in years)	7 years
Fair Value	$ 2,700
Mixel Group, Inc. (“Mixel”) \| Trade name
Business Combination [Line Items]
Useful Life (in years)	12 years
Fair Value	$ 5,500

Goodwill and Intangible Assets - Schedule of Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 3,070	$ 953
Cost of revenue
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	995	747
Research and development
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	427	206
General and administrative
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 1,648	$ 0

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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- Definition

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+ Details

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	500,000,000	500,000,000
Common stock, issued (in shares)	30,948,403	28,526,615
Common stock, outstanding (in shares)	30,948,403	28,526,615

Leases

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Leases

The Company’s headquarters are located in Santa Clara, California, where the Company has an operating lease covering its corporate office expiring in April 2028. The Company also has operating leases in Duluth, Georgia, and abroad, in Japan, France, China, the United Kingdom, Taiwan, Singapore, Korea, Egypt, and Vietnam, among other countries. The expiration dates for these operating leases range from 2026 through 2035. Refer to Note 10, Related Parties for further information on the Company’s lease renewal entered during the year ended December 31, 2025.

The components of operating lease cost were as follows:


	Year Ended December 31,
	2025		2024
	(in thousands)
Operating lease cost	$	1,215	$	940
Variable lease cost (1)	484		168
Total operating lease cost	$	1,699	$	1,108

(1)Variable lease cost includes common area maintenance, utilities, security, insurance and property taxes.

Additional information related to the Company’s operating leases for the years ended December 31, 2025 and 2024 was as follows:


	Year Ended December 31,
	2025			2024
	(in thousands)
Cash paid for operating lease liabilities	$	1,215		$	930
Right-of use assets obtained in exchange for operating lease liabilities	$	2,400		$	607


	December 31,
	2025			2024
Weighted average remaining lease term (in years)	3.21			3.41
Weighted average discount rate	8.04		%	3.00		%

As of December 31, 2025, maturities of operating lease liabilities were as follows:


Year Ending December 31,	Amount
	(in thousands)
2026	$	1,443
2027	1,068
2028	448
2029	242
2030	34

Thereafter	154
Total lease payments	$	3,389
Less: imputed interest	(307)
Total operating lease liabilities	$	3,082
Current portion of lease liability	1,121
Non-current portion of lease liability	$	1,961

Rent expense was $1.7 million and $1.2 million for the years ended December 31, 2025 and 2024, respectively.

Debt and Financing Obligations - Narrative (Details)				1 Months Ended		12 Months Ended
Debt and Financing Obligations - Narrative (Details)	Apr. 16, 2024 USD ($)	Apr. 11, 2024 USD ($)	Jun. 13, 2022	May 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) shares
Debt Instrument [Line Items]
Gain (loss) on debt extinguishment						$ 0	$ (718,000)
Present value of vendor financing obligation						$ 3,203,000
Vendor financing obligation, interest rate (in percent)						9.00%
Vendor financing obligation, interest expense						$ 300,000	300,000
Derivative Liability, Statement Of Financial Position Extensible Enumeration, Not Disclosed Flag						derivative liability
Conversion of Micron Note into common stock							5,589,000
Licensed IP
Debt Instrument [Line Items]
License agreement, cash consideration		$ 6,000,000.0
License agreement, term extension (in years)		5 years
Additional Paid-in Capital
Debt Instrument [Line Items]
Conversion of Micron Note into common stock							$ 5,589,000
Common Stock
Debt Instrument [Line Items]
Conversion of Micron Note into common stock (in shares) \| shares							294,217
Micron Technology Inc. (“Micron”)
Debt Instrument [Line Items]
Derivative liability	$ 500,000
Gain (loss) on derivative remeasurement							$ (28,000)
Convertible Debt \| Micron Technology Inc. (“Micron”)
Debt Instrument [Line Items]
Gain (loss) on debt extinguishment							600,000
Interest rate (in percent)	8.00%
Debt instrument, principal amount	$ 5,000,000.0
Debt instrument, term (in years)	3 years
Debt discount	$ 500,000
Convertible Debt \| Micron Technology Inc. (“Micron”) \| Debt Conversion Terms One
Debt Instrument [Line Items]
Debt instrument, conversion price, multiplier	0.90
2022 Credit Line \| Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate (in percent)			1.00%
Gain (loss) on debt extinguishment				$ 0
East West Bank Loan \| Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate (in percent)					0.50%
Gain (loss) on debt extinguishment							(100,000)
Line of credit facility, maximum borrowing capacity					$ 5,000,000.0
Interest rate (in percent)					4.50%
Interest expense, debt							$ 200,000

Stock-Based Compensation - Weighted Average Assumptions (Details) - Employee stock purchase plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Dividend yield	$ 0	$ 0
Expected volatility (in percent)	68.19%	46.80%
Risk free interest rate (in percent)	4.01%	4.45%
Expected term (in years)	6 months	5 months 15 days
Weighted average fair value of shares granted (in dollars per share)	$ 1.44	$ 2.65

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Acquisitions

12 Months Ended

Dec. 31, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Acquisitions

Optical Proximity Correction Suite of Tools

On March 4, 2025, the Company consummated an asset purchase agreement with Cadence Design Systems, Inc. (“Cadence”), pursuant to which, among other things, Silvaco agreed to acquire certain assets and assume certain liabilities comprising Cadence’s Process Proximity Compensation product line, an optical proximity correction suite of tools (the “OPC Business”), in exchange for $11.5 million in cash.

The Company expects that the addition of the OPC suite of tools and expert team, which are complementary to Silvaco’s EDA and TCAD suite, will enhance Silvaco’s ability to offer advanced computational lithography solutions that address the increasing complexity of semiconductor manufacturing at advanced nodes.

The acquisition was accounted for as a business combination, and Silvaco recorded the assets acquired and liabilities assumed based on their estimated fair values at the date of the acquisition. Silvaco recorded the excess of consideration transferred over the aggregate fair values of acquired assets and assumed liabilities as goodwill. The goodwill recorded was primarily attributable to synergies expected to arise after the acquisition and the value of the acquired workforce, and is expected to be deductible for U.S. income tax purposes.

The following is a summary of the assets acquired and liabilities assumed in the OPC Business acquisition.


Asset Type	Useful Life (in years)	Fair Value
		(in thousands)
Contract asset		$	615
Deferred tax asset		164
Developed Technology	7	1,000
Customer Relationships	6	4,990
Goodwill		5,147
Deferred revenue		(416)
Net assets acquired and liabilities assumed		$	11,500

The fair value of developed technology was determined using a discounted cash flow model through application of the income approach, using the relief-from-royalty method, which assumed a market-based royalty rate applied to projected revenue. The fair value of customer relationships was determined using a discounted cash flow model under the income approach, specifically the multi-period excess earnings method, which discounts future cash flows attributable to existing customers, net of operating expenses and contributory asset charges.

During the year ended December 31, 2025, the Company incurred $0.6 million of acquisition-related expenses in connection with the acquisition of the OPC Business, which were recognized in general and administrative expense on the consolidated statements of loss.

The operating results of the OPC Business, which have been included in the Company’s consolidated financial statements since the date of acquisition, were as follows:


		Year Ended December 31, 2025
	(in thousands)
Revenue		$	10,061

Due to the ongoing integration of the acquired business, determining its impact on net loss is impractical for the period presented.

Tech-X Corporation

On April 29, 2025, the Company consummated a stock purchase agreement with the shareholders of Tech-X Corporation (“Tech-X”), pursuant to which Silvaco agreed to acquire all of the outstanding shares of Tech-X for an aggregate purchase price of $8.2 million. The purchase consideration consisted of (i) $4.1 million in cash, (ii) 457,666 shares of the Company’s common stock with a fair value of $2.4 million on the closing date, and (iii) contingent consideration, with a maximum payout of $2.0 million, and with an estimated fair value of $1.7 million, payable in cash upon the achievement of specified technical milestones through December 2026. In February 2026, the Company and the Tech-X selling shareholder representative agreed to amend the form of payment of the contingent consideration and post-closing net working capital adjustments to be payable in shares of the Company’s common stock. The Company and the Tech-X selling shareholder representative also agreed to extend the date through which contingent consideration can be earned to July 2027. Refer to Note 19, Subsequent Events for additional information.

The fair value of the contingent consideration was determined using a discounted cash flow model utilizing a probability weighted analysis, and is re-valued period to period with any changes recorded to interest expense and other income (expense), net in the consolidated statements of loss. Refer to Note 18, Fair Value of Financial Instruments for additional information.

The Company believes that integrating Tech-X’s advanced multi-physics simulation tools with Silvaco’s Victory TCAD platform will enhance customers’ ability to develop more accurate digital twin models for photonics, semiconductor devices and wafer-scale plasma etching.

The acquisition was accounted for as a business combination. The Company recognized the assets acquired and liabilities assumed at their estimated fair values as of the acquisition date. The excess of the total consideration transferred over the fair value of the net identifiable assets acquired was recorded as goodwill. The goodwill is primarily attributable to expected synergies from the integration of Tech-X’s technologies with the Company’s existing platform and the value of the acquired workforce. The goodwill is not deductible for U.S. income tax purposes.

The following is a summary of the fair value of assets acquired and liabilities assumed in the Tech-X acquisition.


Asset Type	Useful Life ( in years)	Fair Value
		(in thousands)
Cash		$	851
Accounts receivable		749
Prepaid expenses and other current assets		75
Property and equipment		33
Customer relationships	6	1,730
Developed technology	7	1,280
Trade name	2	130
Goodwill		4,385
Accounts payable		(104)
Accrued expenses and other current liabilities		(303)
Deferred tax liability		(572)
Deferred revenue		(80)
Net assets acquired and liabilities assumed		$	8,174

The fair value of customer relationships was determined using a discounted cash flow model under the income approach, specifically the multi-period excess earnings method, which discounts future cash flows attributable to existing customers, net of operating expenses and contributory asset charges. The fair value of the developed technology and trade name intangibles were determined using a discounted cash flow model under the income approach, specifically the relief-from-royalty method, which assumes a market-based royalty rate applied to projected revenues.

During the year ended December 31, 2025, the Company incurred $0.8 million in acquisition-related expenses in connection with the acquisition of Tech-X, which were recognized in general and administrative expense on the consolidated statements of loss.

The operating results of Tech-X have been included in the Company's consolidated financial statements since the date of acquisition and were not material for the periods presented.

Mixel Group, Inc.

On August 1, 2025, the Company consummated a stock purchase agreement with the shareholders of Mixel Group, Inc. (“Mixel”), pursuant to which Silvaco agreed to acquire all of the outstanding shares of Mixel for an aggregate purchase price of $22.5 million. The purchase consideration consisted of (i) $19.7 million in cash and (ii) 643,617 shares of the Company’s common stock with a fair value of $2.8 million on the closing date.

The Company believes that Mixel’s low-power connectivity silicon IP solutions complements Silvaco’s offerings and will position the Company for higher growth in low-power, high-performance connectivity solutions.

The acquisition was accounted for as a business combination. The Company recognized the assets acquired and liabilities assumed at their estimated fair values as of the acquisition date. The excess of the total consideration transferred over the fair value of the net identifiable assets acquired was recorded as goodwill. The goodwill is primarily attributable to synergies expected to arise after the acquisition and the value of the acquired workforce. The goodwill is not deductible for U.S. income tax purposes.

The following is a summary of the fair value of assets acquired and liabilities assumed in the Mixel acquisition.


Asset Type	Useful Life (in years)	Fair Value
		(in thousands)
Cash		$	1,040
Accounts receivable		1,736
Contract assets, net		45
Prepaid expenses and other current assets		392
Property and equipment		486
Customer relationships	7	7,400
Developed technology	7	2,700
Trade name	12	5,500
Operating lease right-of-use assets, net		881
Other assets		4
Goodwill		11,512
Accounts payable		(842)
Accrued expenses and other current liabilities		(1,609)
Operating lease liabilities, current		(269)
Deferred revenue, current		(2,653)
Deferred tax liability		(3,209)
Operating lease liabilities, non-current		(612)
Net assets acquired and liabilities assumed		$	22,502

During the year ended December 31, 2025, the Company incurred $2.0 million in acquisition-related expenses in connection with the acquisition of Mixel, recognized in general and administrative expense on the consolidated statements of loss.

The operating results of Mixel have been included in the Company’s consolidated financial statements since the date of acquisition and the Company recognized revenue of $3.6 million for the year ended December 31, 2025. The remainder of Mixel’s operating results were not material for the year ended December 31, 2025.

ASC 805 also requires presentation of pro forma information for the comparable period, when the comparable period is presented. The Company was not able to obtain financial information sufficient to make these disclosures for each of the business combinations entered into during the year ended December 31, 2025. Therefore, the Company has not made the comparable period pro forma disclosure because it would be impracticable to do.

- Definition

The entire disclosure for business combination.

+ References

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+ Details

Fair Value of Financial Instruments - Schedule of Fair Value, Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financial assets:
Total	$ 161	$ 13,144
Available-for-sale marketable securities:	1,018	67,856
Total	1,179	81,000
Liabilities:
Contingent consideration	1,741	11
Total	1,741	11
U.S. treasury securities
Financial assets:
Available-for-sale marketable securities:		27,237
U.S. government agencies securities
Financial assets:
Available-for-sale marketable securities:	1,018	40,619
Money market funds
Financial assets:
Total	161	13,144
Level 1
Financial assets:
Total	161	13,144
Available-for-sale marketable securities:	0	0
Total	161	13,144
Liabilities:
Contingent consideration	0	0
Total	0	0
Level 1 \| U.S. treasury securities
Financial assets:
Available-for-sale marketable securities:		0
Level 1 \| U.S. government agencies securities
Financial assets:
Available-for-sale marketable securities:	0	0
Level 1 \| Money market funds
Financial assets:
Total	161	13,144
Level 2
Financial assets:
Total	0	0
Available-for-sale marketable securities:	1,018	67,856
Total	1,018	67,856
Liabilities:
Contingent consideration	0	0
Total	0	0
Level 2 \| U.S. treasury securities
Financial assets:
Available-for-sale marketable securities:		27,237
Level 2 \| U.S. government agencies securities
Financial assets:
Available-for-sale marketable securities:	1,018	40,619
Level 2 \| Money market funds
Financial assets:
Total	0	0
Level 3
Financial assets:
Total	0	0
Available-for-sale marketable securities:	0	0
Total	0	0
Liabilities:
Contingent consideration	1,741	11
Total	1,741	11
Level 3 \| U.S. treasury securities
Financial assets:
Available-for-sale marketable securities:		0
Level 3 \| U.S. government agencies securities
Financial assets:
Available-for-sale marketable securities:	0	0
Level 3 \| Money market funds
Financial assets:
Total	$ 0	$ 0

Stock-Based Compensation

12 Months Ended

Dec. 31, 2025

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation Plans

On April 26, 2024, in connection with the Company’s IPO, the Company’s board of directors approved and adopted the 2024 Stock Incentive Plan (“2024 Plan”), subject to stockholder approval, and the Company’s stockholders approved the 2024 Plan on April 29, 2024. The 2024 Plan became effective on May 8, 2024 and supersedes the Company’s 2014 Stock Incentive Plan (the “2014 Plan”) under which 4.6 million shares of common stock were reserved for issuance. All forfeited shares underlying RSUs granted under the 2014 Plan and shares previously reserved for future issuance under the 2014 Plan are included in the share reserve under the 2024 Plan. During the year ended December 31, 2025, 833,994 shares were added to the 2024 Plan pursuant to an automatic annual increase provision in the plan. As of December 31, 2025, the number of shares of common stock reserved for future issuance under the 2024 Plan was 2,954,900.

The Company grants RSUs to new hires under the 2024 Plan that generally vest over four years, with 25% vesting after one year and the remaining 75% vesting in equal quarterly installments over the following three years, subject to the employee’s continued service through each applicable vesting date, unless a different vesting schedule is approved by the Company’s Compensation Committee. The Company also grants “refresh” RSUs to existing employees under the 2024 Plan that generally vest in equal quarterly installments over four years, subject to the employee’s continued service through each applicable vesting date.

The following table summarizes the Company's RSU activity pursuant to the 2014 Plan and the 2024 Plan:


	Weighted Average			Number of Awards
	Grant Date Fair Value		Remaining Contract Term (in years)
Balance as of December 31, 2023	$	7.20	6.56	3,398,276
Granted	15.71		9.09	1,183,350
Vested	10.78		8.00	(2,914,650)
Forfeited / canceled	9.42		7.00	(163,314)
Balance as of December 31, 2024	$	12.75	8.83	1,503,662
Granted	4.61		9.41	3,190,983
Vested	9.57		8.51	(1,466,557)
Forfeited / canceled	7.36		8.61	(601,052)
Balance as of December 31, 2025	$	6.10	9.20	2,627,036

Employee Stock Purchase Plan

The Company’s 2024 Employee Stock Purchase Plan (the “2024 ESPP”) permits eligible employees to contribute up to 15% of their base compensation, subject to applicable legal restrictions and limitations, to purchase shares of the Company’s common stock at a price equal to 85% of the lesser of (i) the fair market value of the stock on the first day of the offering period or (ii) the fair market value on the purchase date. Offering periods under the 2024 ESPP generally have a duration of six months, commencing on June 1 and December 1 of each year and ending on November 30 and May 31, respectively, unless otherwise determined by the Company’s Compensation Committee. The initial offering period under the 2024 ESPP commenced on August 1, 2024, and ended on November 30, 2024.

The shares purchased, the weighted average purchase price, and the cash received for 2024 ESPP purchases were as follows (in thousands, except shares purchased and weighted average purchase price):


	Year Ended December 31, 2025		Year Ended December 31, 2024
Shares purchased	230,637		44,930
Weighted average purchase price	$	3.90	$	7.01
Cash received	$	899	$	315


	Year Ended December 31, 2025			Year Ended December 31, 2024
Dividend yield	$	—		$	—
Expected volatility	68.19		%	46.80		%
Risk-free interest rate	4.01		%	4.45		%
Expected term (in years)	0.50			0.46
Weighted average fair value of shares granted	$	1.44		$	2.65

Unrecognized stock-based compensation cost for awards granted under the 2024 ESPP as of December 31, 2025 of $0.2 million will be amortized over 5 months.

Stock-based Compensation Expense

The Company issues RSUs to its employees, directors and service providers. The RSUs awarded under the 2014 Plan generally had two vesting requirements, a Time-Based Requirement and a Liquidity Event Requirement. The Liquidity Event Requirement would be satisfied as to any then-outstanding RSUs on the first to occur of: (1) a change in control event (as defined in the award agreement); or (2) the first sale of common stock pursuant to an underwritten IPO, in either case, within 10 years of the grant date. The Liquidity Event Requirement was satisfied upon the completion of the IPO on May 13, 2024. Certain RSUs required the employee to be employed with the Company upon the consummation of the IPO for the Liquidity Event Requirement to be satisfied. The Time-Based Requirement generally requires four years for full vesting of the grants, with 25% vesting after one year and quarterly vesting over the subsequent three years. Certain grants have had modified time-based vesting requirements, including certain grants that have been issued with the Time-Based Requirement satisfied on the grant date. Once the Liquidity Event Requirement was satisfied, the Company recognizes its stock-based compensation expense ratably over the requisite service period, which is generally four years.

Prior to the Company’s IPO, the Company did not record stock-based compensation expense for the RSUs, as the Liquidity Event Requirement was not deemed probable. Upon the completion of the IPO, the Liquidity Event Requirement was met, and the Company recognized stock-based compensation expense associated with (i) RSUs granted to active employees and service providers, (ii) RSUs granted to certain former employees and service providers whose RSUs vested in connection with the Liquidity Event, and (iii) the acceleration of the Time Based Requirement for certain awards to executive officers, senior management and directors as a result of the Liquidity Event.

In November 2023, the Company issued 30,000 RSUs with certain performance-based conditions, in addition to the Time-Based Requirement, and a grant date fair value of $0.4 million. The Company estimates the probability of achievement of applicable performance goals for performance-based RSUs in each reporting period and recognizes related stock-based compensation expense using the straight-line attribution method. The amount of stock-based compensation expense recognized in any period can vary based on the attainment or expected attainment of the various performance goals. If such performance goals are not ultimately met, no stock-based compensation expense is recognized and any previously recognized compensation expense is reversed. The Company recognized stock-based compensation expense of $0.1 million related to these RSUs during the year ended December 31, 2024. The RSUs were forfeited in April 2025 and the Company reversed the stock-based compensation expense that was previously recognized during the year ended December 31, 2025.

In November 2023, the Company issued 75,000 RSUs with certain market-based conditions, in addition to the Time Based Requirement and the Liquidity Event Requirement, and a grant date fair value of $0.6 million. The Company estimated the fair value of market-based RSUs on the grant date using a Monte Carlo simulation model. The vesting of the market-based RSUs is contingent on achieving a minimum volume-weighted average stock price (“VWAP”) prior to the expiration of the RSUs. The assumptions used in the Monte Carlo simulation model to determine the grant date fair value were a daily VWAP of $8.92, a volatility of 50%, and a risk-free rate of 4.3%. The Company recognized stock-based compensation expense of $0.1 million related to these RSUs during the year ended December 31, 2024. The RSUs were forfeited in April 2025 and the Company reversed the stock-based compensation expense that was previously recognized during the year ended December 31, 2025.

During the year ended December 31, 2024, the Company’s compensation committee approved the issuance of a variable number of RSUs as a portion of the employee bonus program for the fiscal year 2024. The number of RSUs issued will be calculated as the volume-weighted average price of the Company’s common stock upon the bonus being finalized after the end of the fiscal year. As the Company has an obligation to issue a variable number of shares for a fixed monetary amount, the RSUs will be accounted for as liability-classified awards and subsequently re-measured to their fair value at each reporting date. The Company recognized stock-based compensation expense of $15.3 thousand and $0.6 million associated with the liability-classified RSUs during the year ended December 31, 2025 and 2024, respectively, with a corresponding increase to accrued liability. During the year ended December 31, 2025, the Company issued 101,486 RSUs under the 2024 bonus program.

In August 2025, the Company agreed to grant RSUs to the Chief Executive Officer (“CEO”) that may be earned upon the achievement of certain market-based conditions, and which are subject to service-based vesting conditions. The number of RSUs to be granted is based on the Company’s stock price over the relevant service period, measured using VWAP metrics. The total grant date fair value of the RSUs was estimated at $1.1 million using a Monte Carlo simulation model. The key assumptions used in the Monte Carlo simulation were a daily VWAP of $4.54, an expected volatility of 77%, and a risk-free interest rate of 3.8%. For the year ended December 31, 2025, the Company recognized $0.2 million of stock-based compensation expense related to these awards. No shares were issued or vested during the year ended December 31, 2025.

During the year ended December 31, 2025, the Company accelerated 158,359 RSUs and recognized $1.1 million of stock-based compensation expense related to the acceleration and grant of fully vested shares related to the Restructuring Plan. Refer to Note 5, Restructuring, for additional information.

The Company recorded stock-based compensation expense using the straight-line attribution method, net of actual forfeitures, based on the grant-date fair value of the RSU awards and ESPP. The following table summarizes stock-based compensation expense:


	Year Ended December 31,
	2025		2024
	(in thousands)
Cost of revenue	$	1,317	$	2,974
Research and development	2,708		5,091
Selling and marketing	1,722		4,319
General and administrative	5,066		14,531
	$	10,813	$	26,915

As of December 31, 2025, the Company had unrecognized stock-based compensation expense of $14.4 million which is expected to be recognized over a weighted average period of 2.5 years.

Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
Leases - Lease Cost (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating lease cost	$ 1,215	$ 940
Variable lease cost	484	168
Total operating lease cost	$ 1,699	$ 1,108

Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2025

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment




Leasehold improvements						Shorter of remaining life of lease, including option to renew that is expected to be exercised, or useful life of improvement.
Computers and software						5 years
Servers and networking equipment						4 years
Vehicles						5 years

The Company’s property and equipment at December 31, 2025 and 2024 consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Computer software	$	6,108	$	5,944
Equipment	926		512
Buildings and improvements	94		198
Leasehold improvements	312		212
Furniture and fixtures	95		139
Total property and equipment	7,535		7,005
Less accumulated depreciation	(6,010)		(6,140)
Total property and equipment, net	$	1,525	$	865

Revenue (Tables)

12 Months Ended

Dec. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable

The contract balances of the Company’s accounts receivable and contract assets, both of which are net of allowance for expected credit losses, and deferred revenue were as follows:


	Contract Balances
	December 31, 2025		December 31, 2024		January 1, 2024
	(in thousands)
Accounts receivable, net	$	9,710	$	9,211	$	4,006
Contract assets, net	$	27,634	$	24,543	$	14,999
Deferred revenue	$	15,908	$	11,090	$	12,953

Debt and Financing Obligations - Schedule of Contractual Obligation, Fiscal Year Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Maturities of Long-Term Debt [Abstract]
2026	$ 1,200
2027	1,200
2028	1,200
Total undiscounted cash flows	3,600
Less: Imputed interest	397
Present value of vendor financing obligation	$ 3,203
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]	Vendor financing obligation, current, Vendor financing obligation, non-current
Vendor financing obligation, current	$ 1,165	$ 1,462
Vendor financing obligation, non-current	$ 2,038	$ 2,928

Restructuring - Schedule of Restructuring Expenses (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1,270
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Expenses
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 737
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Expenses
Selling and marketing
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 384
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Expenses
General and administrative
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 149
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating Expenses

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 10,813	$ 26,915
Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,317	2,974
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,708	5,091
Selling and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,722	4,319
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,066	$ 14,531

Summary of Significant Accounting and Reporting Policies

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Summary of Significant Accounting and Reporting Policies

Basis of presentation and consolidation

Emerging growth company status

The Company is an emerging growth company as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act, until such time as those standards apply to private companies. The Company has elected to use this extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that the Company (i) is no longer an emerging growth company or (ii) affirmatively and irrevocably opts out of the extended transition period provided in the JOBS Act.

Use of estimates

Revenue recognition

Significant judgments

Accounts receivable, contract assets and contract liabilities

Financing

Sales commissions

Cash and cash equivalents

Property and equipment




Leasehold improvements						Shorter of remaining life of lease, including option to renew that is expected to be exercised, or useful life of improvement.
Computers and software						5 years
Servers and networking equipment						4 years
Vehicles						5 years

Research and development

Business Combination

Goodwill and other intangible assets

No indicators of impairment or impairment charges were identified or recorded to goodwill or other intangible assets during the years ended December 31, 2025 and 2024.

Impairment of long-lived assets

Deferred transaction costs

Deferred offering costs are capitalized and consist of fees and expenses incurred in connection with the Company’s IPO, including the legal, accounting, printing, and other IPO-related costs. Upon completion of the IPO in May of 2024, $3.3 million of deferred transaction costs were reclassified to stockholders’ equity and recorded against the proceeds from the offering. No balance was outstanding as of December 31, 2025 and 2024.

Concentrations of credit risk

Accounts receivable from customers representing 10% or more of the Company’s total accounts receivable were as follows:


	Year Ended December 31,
	2025		2024
Customer A	14	%	*
Customer B	11	%	*
Customer C	10	%	*
Customer D	*		21	%
Customer E	*		15	%

* Customer accounted for less than 10% of total accounts receivable at period end.

Revenue from customers representing 10% or more of the Company’s total revenue was as follows:


	Year Ended December 31,
	2025		2024
Customer B	14	%	15	%

Restricted cash

As of December 31, 2025, the Company held restricted cash of $8.3 million to secure an irrevocable standby letter of credit issued in connection with a litigation settlement entered into in May 2025 with the former shareholders of Nangate, Inc. (“Nangate”). The letter of credit, secured with East West Bank on May 17, 2025, is scheduled to expire on June 30, 2026. As of December 31, 2025 no amounts had been drawn under the letter of credit. Restricted cash is classified as a current asset on the consolidated balance sheets. See Note 10, Related Parties, and Note 16, Commitments and Contingencies, for additional information.

Marketable securities

Allowance for credit losses


	Year Ended December 31,
	2025		2024
	(in thousands)
Beginning balance – January 1	$	777	$	539
Provision for credit losses	(80)		351
Accounts written off	(213)		(113)
Ending balance – December 31	$	484	$	777

Income taxes

Foreign currencies

Accumulated other comprehensive loss

Accumulated other comprehensive loss is composed entirely of foreign currency translation adjustments and unrealized gains and losses on marketable securities.

Stock-based compensation

Fair value of financial instruments

■Level 1 Inputs: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Research and development grants and tax subsidies

Leases

The Company has no finance leases. Refer to Note 6, Leases for additional information.

Advertising

Advertising costs are expensed as incurred and were $40,000 and $39,000 for the years ended December 31, 2025 and 2024, respectively.

Restructuring

Net Loss per Share

The following outstanding securities were excluded from the computation of diluted earnings per share because the effect would be anti-dilutive. Refer to Note 13, Stock-Based Compensation for additional information.


	December 31,
	2025	2024
Unvested RSUs	2,627,036	1,503,662
Employee stock purchase plan	169,965	77,004
Contingently issuable shares to CEO	24,691	—
	2,821,692	1,580,666

Recently Adopted Accounting Pronouncements

Accounting Guidance Issued and Not Yet Adopted

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	(Accumulated Deficit) Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2023		20,000,000
Beginning balance at Dec. 31, 2023	$ 9,402	$ 2	$ 0	$ 11,392	$ (1,992)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with initial public offering, net of underwriting fees and commissions and net of deferred transaction costs of $3,299 (in shares)		6,000,000
Issuance of common stock in connection with initial public offering, net of underwriting fees and commissions and net of deferred transaction costs of $3,299	102,722	$ 1	102,721
Conversion of Micron Note into common stock (in shares)		294,217
Conversion of Micron Note into common stock	5,589		5,589
Issuance of common stock for share-based award plans (in shares)		2,959,580
Issuance of common stock for share-based award plans	315		315
Tax withholding on restricted stock unit settlements (in shares)		(727,182)
Tax withholding on restricted stock unit settlements	(4,575)		(4,575)
Stock-based compensation expense	26,310		26,310
Other comprehensive income (loss)	(276)				(276)
Net loss for the year	$ (39,404)			(39,404)
Ending balance (in shares) at Dec. 31, 2024	28,526,615	28,526,615
Ending balance at Dec. 31, 2024	$ 100,083	$ 3	130,360	(28,012)	(2,268)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in a business combination (in shares)		1,101,283
Issuance of common stock in a business combination	5,266		5,266
Issuance of common stock for share-based award plans (in shares)		1,697,194
Issuance of common stock for share-based award plans	899		899
Tax withholding on restricted stock unit settlements (in shares)		(376,689)
Tax withholding on restricted stock unit settlements	(1,806)		(1,806)
Stock-based compensation expense	11,417		11,417
Other comprehensive income (loss)	336				336
Net loss for the year	$ (41,206)			(41,206)
Ending balance (in shares) at Dec. 31, 2025	30,948,403	30,948,403
Ending balance at Dec. 31, 2025	$ 74,989	$ 3	$ 146,136	$ (69,218)	$ (1,932)

Commitments and Contingencies (Details) $ in Thousands							1 Months Ended			8 Months Ended	12 Months Ended
Commitments and Contingencies (Details) $ in Thousands	Feb. 13, 2026 USD ($)	Nov. 14, 2025 USD ($)	Aug. 15, 2025 USD ($)	Aug. 16, 2024 USD ($)	Jul. 23, 2024 USD ($)	Aug. 23, 2022 USD ($)	Feb. 28, 2026 USD ($)	Dec. 31, 2020 USD ($)	Feb. 29, 2012 ft²	Feb. 13, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Litigation settlement											$ 13,069	$ 11,306
Loan \| Related Party
Loss Contingencies [Line Items]
Debt instrument, collateral, building, number of square feet \| ft²									9,000
Nangate Parties Cross-Complaint
Loss Contingencies [Line Items]
Damages sought								$ 20,000
Damages awarded					$ 11,300							13,100
Settlement payment		$ 4,100	$ 4,100
Litigation settlement											13,100	$ 11,300
Settlement payable											8,300
Nangate Parties Cross-Complaint \| Subsequent Event
Loss Contingencies [Line Items]
Settlement payments							$ 8,300
Nangate Parties Cross-Complaint \| Forecast
Loss Contingencies [Line Items]
Settlement payment	$ 8,300									$ 32,500
Nangate Parties Cross-Complaint \| Co-Defendants
Loss Contingencies [Line Items]
Settlement payments											$ 8,100
Nangate Parties Cross-Complaint \| Fraud Damages, Excluding Punitive Damages
Loss Contingencies [Line Items]
Damages awarded					$ 6,600
Nangate Parties Cross-Complaint \| Punitive Damages \| Silvaco Group, Inc.
Loss Contingencies [Line Items]
Damages awarded				$ 17,000
Nangate Parties Cross-Complaint \| Punitive Damages \| Co-Defendants
Loss Contingencies [Line Items]
Damages awarded				$ 16,000
Aldini Second Amended Complaint
Loss Contingencies [Line Items]
Damages sought						$ 703,000
Software Licenses
Loss Contingencies [Line Items]
Standard product warranty, term											90 days
Other Tools
Loss Contingencies [Line Items]
Standard product warranty, term											1 year

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (41,206)	$ (39,404)
Other comprehensive income (loss):
Foreign currency translation adjustments	476	(417)
Unrealized gain (loss) on marketable securities	(140)	141
Comprehensive loss	$ (40,870)	$ (39,680)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Related Parties (Details)					1 Months Ended	8 Months Ended	12 Months Ended
Related Parties (Details)	Feb. 13, 2026 USD ($)	Nov. 14, 2025 USD ($)	Aug. 15, 2025 USD ($)	Jun. 18, 2025 USD ($)	Feb. 29, 2012 ft²	Feb. 13, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 13, 2022 USD ($)	May 01, 2022
Related Party Transaction [Line Items]
Rent expense							$ 1,700,000	$ 1,200,000
Operating lease right-of-use assets							3,114,000	1,711,000
Operating lease liability							3,082,000
Litigation settlement							13,069,000	11,306,000
Litigation settlement							$ 8,250,000	11,306,000
Nangate Parties Cross-Complaint
Related Party Transaction [Line Items]
Settlement payment		$ 4,100,000	$ 4,100,000
Settlement payable (in percent)							75.00%
Litigation settlement							$ 13,100,000	11,300,000
Nangate Parties Cross-Complaint \| Silvaco Group, Inc. And Co-Defendants
Related Party Transaction [Line Items]
Settlement payment				$ 16,000,000.0			$ 24,300,000
Nangate Parties Cross-Complaint \| Co-Defendants
Related Party Transaction [Line Items]
Settlement payable (in percent)							25.00%
Settlement payments							$ 8,100,000
Nangate Parties Cross-Complaint \| Forecast
Related Party Transaction [Line Items]
Settlement payment	$ 8,300,000					$ 32,500,000
Related Party \| 2022 Credit Line \| Line of Credit
Related Party Transaction [Line Items]
Line of credit facility, maximum borrowing capacity									$ 4,000,000.0
Interest expense, debt								100,000
Related Party \| Loan
Related Party Transaction [Line Items]
Debt instrument, collateral, building, number of square feet \| ft²					9,000
Kipee \| Related Party
Related Party Transaction [Line Items]
Rent expense							200,000	200,000
Operating lease, term of contract (in years)										3 years
Operating lease right-of-use assets							600,000
Operating lease liability							600,000
New Horizons (Cambridge) LTD and New Horizons France \| Related Party
Related Party Transaction [Line Items]
Rent expense							300,000	$ 300,000
New Horizons (Cambridge) LTD \| Related Party
Related Party Transaction [Line Items]
Operating lease right-of-use assets							800,000
Operating lease liability							800,000
New Horizons France \| Related Party
Related Party Transaction [Line Items]
Operating lease right-of-use assets							20,900
Operating lease liability							$ 20,900

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 9,008	$ 19,606
Restricted cash	8,250	0
Accounts receivable, net	9,710	9,211
Current marketable securities	1,018	63,071
Contract assets, net	13,362	11,932
Prepaid expenses and other current assets	4,728	3,460
Total current assets	46,076	107,280
Non-current assets:
Non-current marketable securities	0	4,785
Property and equipment, net	1,525	865
Operating lease right-of-use assets, net	3,114	1,711
Intangible assets, net	26,027	4,369
Goodwill	30,070	9,026
Non-current portion of contract assets	14,272	12,611
Other assets	1,558	1,698
Total non-current assets	76,566	35,065
Total assets	122,642	142,345
Current liabilities:
Accounts payable	3,483	3,316
Accrued expenses and other current liabilities	19,397	19,801
Accrued income taxes	2,486	1,668
Operating lease liabilities, current	1,121	744
Deferred revenue, current	10,751	7,497
Vendor financing obligation, current	1,165	1,462
Total current liabilities	38,403	34,488
Non-current liabilities:
Deferred revenue, non-current	5,157	3,593
Operating lease liabilities, non-current	1,961	946
Vendor financing obligation, non-current	2,038	2,928
Other non-current liabilities	94	307
Total liabilities	47,653	42,262
Commitments and contingencies (Note 16)
Stockholders' equity:
Preferred stock $0.0001 par value: 10,000,000 shares authorized, no shares issued and outstanding as of December 31, 2025 and 2024	0	0
Common stock,$0.0001 par value: 500,000,000 shares authorized; 30,948,403 and 28,526,615 shares issued and outstanding as of December 31, 2025 and 2024, respectively	3	3
Additional paid-in capital	146,136	130,360
Accumulated deficit	(69,218)	(28,012)
Accumulated other comprehensive loss	(1,932)	(2,268)
Total stockholders' equity	74,989	100,083
Total liabilities and stockholders' equity	$ 122,642	$ 142,345

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2025
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In February 2026, the Company amended the stock purchase agreement with Tech-X to change the form of payment of the contingent consideration and post-closing net working capital adjustments payable to Tech-X to be payable in shares of the Company’s common stock. The Company issued 167,281 shares of its common stock in February 2026 to a shareholder of Tech-X to settle obligations due of $640,685. In addition, the period over which the contingent consideration can be earned was extended to July 2027.

Defined Contribution Plan	12 Months Ended
Defined Contribution Plan	Dec. 31, 2025
Retirement Benefits [Abstract]
Defined Contribution Plan	Defined Contribution Plan The Company maintains a defined contribution or 401(k) Plan for its qualified U.S. employees. Participants may contribute a percentage of their compensation on a pre-tax basis, subject to a maximum annual contribution imposed by the Internal Revenue Code. During the years ended December 31, 2025 and 2024, the Company contributed $0.8 million and $1.0 million, respectively, to the 401(k) Plan. In connection with the 401(k) Plan, the Company recorded expense of $0.8 million and $0.6 million during the years ended December 31, 2025 and 2024, respectively.

Significant Balance Sheet Components

12 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Significant Balance Sheet Components

Prepaid expenses and other current assets consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Research and development tax credits and grants	$	1,666	$	900
Deferred sales commissions(a)	751		793
Software and subscriptions	1,089		679
Current lease deposits	163		321
Other prepaid expenses	1,059		767
Total prepaid expenses and other current assets	$	4,728	$	3,460

Other assets consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Deferred sales commissions(a)	$	1,112	$	1,449
Lease deposits	188		142
Other prepaid expenses	258		107
Total other assets	$	1,558	$	1,698

(a)Balance reflects commissions paid for new contracts, primarily new multi-year term license arrangements to be amortized over the anticipated customer life of five years.

Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Financial instruments measured at fair value on a recurring basis

The following tables present the Company's financial assets and liabilities that are measured at estimated fair value on a recurring basis:


	Fair value measurements as of December 31, 2025
	(in thousands)
	Carrying value		Level 1		Level 2		Level 3
Financial assets:
Cash equivalents:
Money market funds	161		161		—		—

Total	161		161		—		—
Available-for-sale marketable securities:
U.S. government agencies securities	1,018		—		1,018		—
Total	1,018		—		1,018		—
Total	$	1,179	$	161	$	1,018	$	—
Liabilities:
Contingent consideration	1,741		—		—		1,741
Total	$	1,741	$	—	$	—	$	1,741

	Fair value measurements as of December 31, 2024
	(in thousands)
	Carrying value		Level 1		Level 2		Level 3
Financial assets:
Cash equivalents:
Money market funds	13,144		13,144		—		—
Total	13,144		13,144		—		—
Available-for-sale marketable securities:
U.S. treasury securities	27,237		—		27,237		—
U.S. government agencies securities	40,619		—		40,619		—
Total	67,856		—		67,856		—
Total	$	81,000	$	13,144	$	67,856	$	—
Liabilities:
Contingent consideration	11		—		—		11
Total	$	11	$	—	$	—	$	11

The Company's level 1 financial assets were valued using quoted prices in active markets for identical assets. The Company’s level 2 financial assets were determined based on third-party inputs which are either directly or indirectly observable, such as reported trades and broker or dealer quotes. The Company's marketable securities have an amortized cost that approximates fair value.

Pursuant to the Company’s stock purchase agreements for the acquisition of Nangate in March of 2018, PolytEDA Cloud LLC (“PolytEDA”) in January of 2021, and Tech-X in April 2025, the selling shareholders are entitled to additional milestone and earn out consideration based on operating income generated by the business and technical achievements. The milestone consideration and earn-out liabilities are classified as contingent consideration as the obligations are due in cash. As such the obligations are recorded at their fair value and re-valued period to period with any changes recorded to interest income and other income (expense), net in the consolidated statements of loss.

The Company's contingent consideration is valued using a discounted cash flow model, and the assumptions used in preparing the discounted cash flow model include estimates for interest rates and the amount of cash flows, in addition to the expected net revenue, operating income and technical achievement of the acquired technology.

The following is a reconciliation of changes in the liability related to contingent consideration:


	Year Ended December 31,
	2025		2024
	(in thousands)
Fair value as of January 1,	$	11	$	112
Change in fair value	94		(27)
Payments of contingent consideration	(46)		(74)
Acquisition	1,682		—
Fair value as of December 31,	$	1,741	$	11

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 107
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-107

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 940
-SubTopic 820
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478119/940-820-50-1

+ Details

Subsequent Events (Details) - USD ($) $ in Thousands		1 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Apr. 29, 2025	Feb. 28, 2026	Jan. 31, 2026	Dec. 31, 2025	Dec. 31, 2024
Subsequent Event [Line Items]
Contingent consideration				$ 1,741	$ 11
Tech-X Corporation (“Tech-X”)
Subsequent Event [Line Items]
Shares issued in business combination (in shares)	457,666
Contingent consideration	$ 1,700
Tech-X Corporation (“Tech-X”) \| Subsequent Event
Subsequent Event [Line Items]
Shares issued in business combination (in shares)		167,281
Contingent consideration			$ 640,685

CONSOLIDATED STATEMENTS OF LOSS - USD ($) $ in Thousands	12 Months Ended
CONSOLIDATED STATEMENTS OF LOSS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Gross profit
Total revenue	$ 63,064	$ 59,680
Cost of revenue	13,694	12,042
Gross profit	49,370	47,638
Operating expenses:
Research and development	29,858	20,740
Selling and marketing	18,310	18,300
General and administrative	34,028	37,571
Litigation settlement	13,069	11,306
Total operating expenses	95,265	87,917
Operating loss	(45,895)	(40,279)
Loss on debt extinguishment	0	(718)
Interest income	1,947	2,976
Interest expense and other income (expense), net	(697)	(899)
Loss before income tax provision	(44,645)	(38,920)
Income tax (benefit) provision	(3,439)	484
Net loss	$ (41,206)	$ (39,404)
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ (1.39)	$ (1.53)
Diluted (in dollars per share)	$ (1.39)	$ (1.53)
Weighted average shares used in computing per share amounts:
Basic (in shares)	29,741,263	25,672,845
Diluted (in shares)	29,741,263	25,672,845
Software license revenue
Gross profit
Total revenue	$ 42,885	$ 43,991
Maintenance and service
Gross profit
Total revenue	$ 20,179	$ 15,689

Stock-Based Compensation - RSU Activity (Details) - Unvested RSUs - $ / shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Grant Date Fair Value
Beginning balance (in dollars per share)	$ 12.75	$ 7.20
Granted (in dollars per share)	4.61	15.71
Vested (in dollars per share)	9.57	10.78
Forfeited / canceled (in dollars per share)	7.36	9.42
Ending balance (in dollars per share)	$ 6.10	$ 12.75	$ 7.20
Remaining Contract Term (in years)
Outstanding, beginning and ending balance (in years)	9 years 2 months 12 days	8 years 9 months 29 days	6 years 6 months 21 days
Granted (in years)	9 years 4 months 28 days	9 years 1 month 2 days
Vested (in years)	8 years 6 months 3 days	8 years
Forfeited / canceled (in years)	8 years 7 months 9 days	7 years
Number of Awards
Beginning balance (in shares)	1,503,662	3,398,276
Granted (in shares)	3,190,983	1,183,350
Vested (in shares)	(1,466,557)	(2,914,650)
Forfeited / canceled (in shares)	(601,052)	(163,314)
Ending balance (in shares)	2,627,036	1,503,662	3,398,276

Income Taxes - Schedule of Reconciliation of Federal Statutory Income Tax Rate to Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Amount
U.S. Federal Statutory Tax Rate	$ (9,368)
State and Local Income Taxes, Net of Federal Income Tax Effect	(532)
Foreign Tax Effects	(296)
Global Intangible low-taxed income	629
Research and Development Tax Credits	(1,300)
Changes in Valuation Allowances	4,719
Non‑deductible stock-based compensation	603
Non‑deductible officer's compensation	470
Tax deficiencies on share-based payments	596
Non-deductible Transaction Costs	538
Other nondeductible items	23
Worldwide Changes in Unrecognized Tax Benefits	535
Other Adjustments	(56)
Income tax (benefit) provision	$ (3,439)	$ 484
Percent
U.S. Federal Statutory Tax Rate	21.00%	21.00%
State and Local Income Taxes, Net of Federal Income Tax Effect	1.00%
Global Intangible low-taxed income	(1.00%)
Research and Development Tax Credits	3.00%
Changes in Valuation Allowances	(11.00%)	(14.00%)
Non‑deductible stock-based compensation	(1.00%)
Non‑deductible officer's compensation	(1.00%)
Tax deficiencies on share-based payments	(1.00%)
Non-deductible Transaction Costs	(0.01)
Other nondeductible items	0.00%
Worldwide Changes in Unrecognized Tax Benefits	(1.00%)
Other	0.00%	(10.00%)
Tax credits		2.00%
Effective tax rate	8.00%	(1.00%)

Summary of Significant Accounting and Reporting Policies (Tables)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment




Leasehold improvements						Shorter of remaining life of lease, including option to renew that is expected to be exercised, or useful life of improvement.
Computers and software						5 years
Servers and networking equipment						4 years
Vehicles						5 years

The Company’s property and equipment at December 31, 2025 and 2024 consisted of the following:


	December 31,
	2025		2024
	(in thousands)
Computer software	$	6,108	$	5,944
Equipment	926		512
Buildings and improvements	94		198
Leasehold improvements	312		212
Furniture and fixtures	95		139
Total property and equipment	7,535		7,005
Less accumulated depreciation	(6,010)		(6,140)
Total property and equipment, net	$	1,525	$	865

Schedules of Concentration of Risk, by Risk Factor

Accounts receivable from customers representing 10% or more of the Company’s total accounts receivable were as follows:


	Year Ended December 31,
	2025		2024
Customer A	14	%	*
Customer B	11	%	*
Customer C	10	%	*
Customer D	*		21	%
Customer E	*		15	%

* Customer accounted for less than 10% of total accounts receivable at period end.

Revenue from customers representing 10% or more of the Company’s total revenue was as follows:


	Year Ended December 31,
	2025		2024
Customer B	14	%	15	%

Schedule of Accounts Receivable, Allowance for Credit Loss

The following table presents the Company’s allowance for credit losses:


	Year Ended December 31,
	2025		2024
	(in thousands)
Beginning balance – January 1	$	777	$	539
Provision for credit losses	(80)		351
Accounts written off	(213)		(113)
Ending balance – December 31	$	484	$	777

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share


	December 31,
	2025	2024
Unvested RSUs	2,627,036	1,503,662
Employee stock purchase plan	169,965	77,004
Contingently issuable shares to CEO	24,691	—
	2,821,692	1,580,666

Significant Balance Sheet Components - Prepaid Expense And Other Current Assets And Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Prepaid Expense and Other Assets, Current [Abstract]
Research and development tax credits and grants	$ 1,666	$ 900
Deferred sales commissions	751	793
Software and subscriptions	1,089	679
Current lease deposits	163	321
Other prepaid expenses	1,059	767
Prepaid expenses and other current assets	4,728	3,460
Other Assets, Noncurrent [Abstract]
Deferred sales commissions	1,112	1,449
Lease deposits	188	142
Other prepaid expenses	258	107
Other assets	$ 1,558	$ 1,698
Amortization period of sales commissions (in years)	5 years

Acquisitions - Operating Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Revenue	$ 63,064	$ 59,680
Optical Proximity Correction Suite of Tools (“OPC Business”)
Business Combination [Line Items]
Revenue	$ 10,061

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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-Section 50
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-Publisher FASB
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Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 30,529	$ 5,889
Accumulated Amortization	(4,502)	(1,520)
Net Carrying Value	$ 26,027	$ 4,369
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	6 years 8 months 12 days	5 years
Gross Carrying Value	$ 5,780	$ 800
Accumulated Amortization	(1,199)	(666)
Net Carrying Value	$ 4,581	$ 134
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	6 years 6 months	5 years
Gross Carrying Value	$ 14,120	$ 90
Accumulated Amortization	(1,307)	(90)
Net Carrying Value	$ 12,813	$ 0
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	11 years 9 months 18 days
Gross Carrying Value	$ 5,630
Accumulated Amortization	(234)
Net Carrying Value	$ 5,396
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years	5 years
Gross Carrying Value	$ 20	$ 20
Accumulated Amortization	(20)	(17)
Net Carrying Value	$ 0	$ 3
Licensed IP
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years	5 years
Gross Carrying Value	$ 4,979	$ 4,979
Accumulated Amortization	(1,742)	(747)
Net Carrying Value	$ 3,237	$ 4,232

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	$ 5,400	$ 6,400
Unrecognized tax benefits	8,678	7,959	$ 7,247
Unrecognized tax benefits that would impact effective tax rate	1,400
Income tax penalties expense related to uncertain tax positions	22	22
Accrued interest and penalties related to uncertain tax positions	111	$ 99
Nangate Parties Cross-Complaint
Income Tax Contingency [Line Items]
Settlement payable	8,300
United States
Income Tax Contingency [Line Items]
Net operating loss carryforwards	39,200
United States \| Research Tax Credit Carryforward
Income Tax Contingency [Line Items]
Tax credits	8,200
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss carryforwards	16,300
State and Local Jurisdiction \| Research Tax Credit Carryforward
Income Tax Contingency [Line Items]
Tax credits	$ 9,200

Debt and Financing Obligations

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Debt and Financing Obligations

On June 13, 2022, Silvaco entered into the 2022 Credit Line which bore interest at a rate of prime plus 1% per annum. In May 2024, the outstanding balance under the 2022 Credit Line was repaid in full and the 2022 Credit Line was terminated. The Company did not recognize any gain or loss on the extinguishment of the 2022 Credit Line.

In December 2023, the Company entered into a loan facility with East West Bank (the “East West Bank Loan”) which had a maturity date of December 14, 2025 and provided for borrowings of up to $5.0 million bearing interest at a per annum rate equal to one half of one percent (0.5%) above the greater of (i) the prime rate or (ii) four and one half percent (4.5%). The Company recognized a loss on debt extinguishment of $0.1 million and interest expense of $0.2 million during the year ended December 31, 2024, with respect to the East West Bank Loan. In May 2024, the East West Bank Loan was terminated.

On April 11, 2024, the Company amended its license to use, perform, display, copy, reproduce, modify, adapt, alter, customize, translate or otherwise create derivative works based on certain technology of NXP to develop and make licensed designs for the Company’s account, and to market, demonstrate, promote, sell, offer to sell, distribute and otherwise dispose of such licensed designs for total cash consideration of $6.0 million, to be paid over 5 years, pursuant to which the Company recorded an associated vendor financing obligation, which has a balance of $3.2 million as of December 31, 2025. The Company determined that this vendor financing obligation had an imputed interest rate of 9%, which is reflective of its borrowing rate with similar terms. The Company recognized interest expense of $0.3 million during each of the years ended December 31, 2025 and 2024. The Company’s vendor financing obligation is comprised of the following payments as of December 31, 2025:


For the year ending December 31,	Amount
	(in thousands)
2026	$	1,200
2027	1,200
2028	1,200
Total undiscounted cash flows	$	3,600
Less: Imputed interest	397
Present value of vendor financing obligation	$	3,203
Vendor financing obligation, current	$	1,165
Vendor financing obligation, non-current	$	2,038

On April 16, 2024, the Company entered into a note purchase agreement with Micron Technology Inc. (“Micron”), a customer of the Company, pursuant to which the Company issued to Micron a senior subordinated convertible promissory note in the principal amount of $5.0 million (the “Micron Note”). The Micron Note was contractually subordinated to the East West Bank Loan through a subordination agreement with East West Bank but was senior to all of the Company’s other existing debt and was senior to any new future debt incurred (other than any undrawn amount available under the East West Bank Loan while it was outstanding). The Micron Note accrued interest at a rate of 8% per annum, with principal and accrued interest due upon maturity three years after the date of issuance. Upon the consummation of the IPO, the Micron Note was mandatorily convertible into a number of shares equal to the outstanding principal amount and accrued interest divided by a conversion price equal to (a) the price of the Company’s common stock issued in the initial public offering, times (b) 0.90. The Company determined that the feature that allowed for settlement of the Micron Note into a variable number of shares required bifurcation as a derivative liability and should be initially measured at fair value. The Company recorded a derivative liability of $0.5 million and a corresponding debt discount of $0.5 million on the issuance date.

On May 13, 2024, the Micron Note was converted into 294,217 shares of the Company’s common stock in connection with the consummation of the IPO. The shares issued pursuant to the Micron Note were registered for resale under the Securities Act. Upon the settlement of the Micron Note, the derivative liability was settled and the Company remeasured it to its fair value and recorded a loss on derivative remeasurement of $28,000 during the year ended December 31, 2024, which was recorded in interest expense and other income (expense), net on the Company’s consolidated statements of loss. As a result, the fair value of the shares issued of $5.6 million was recognized in additional paid-in capital and the Company settled the debt, inclusive of the derivative liability, and recognized a loss on debt extinguishment of $0.6 million during the year ended December 31, 2024.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

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+ Details