SEALSQ (LAES) 6-K 25 Sep 24 SEALSQ Announces Unaudited First Half 2024 Financial Results and Updates on Strategic Business Initiatives Financial data

Cover

Cover		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024
Cover [Abstract]
Document Type	6-K	6-K
Amendment Flag		false
Document Period End Date		Jun. 30, 2024
Document Fiscal Period Focus		Q2
Document Fiscal Year Focus		2024
Current Fiscal Year End Date		--12-31
Entity File Number	001-41709
Entity Registrant Name	SEALSQ	SEALSQ CORP
Entity Central Index Key		0001951222
Entity Address, Address Line One	Avenue Louis-Casaï 58
Entity Address, City or Town	Cointrin
Entity Address, Country	CH
Entity Address, Postal Zip Code	1216

Condensed Consolidated Statemen

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Net sales	$ 4,828	$ 14,751
Cost of sales	(3,667)	(6,760)
Depreciation of production assets	(228)	(201)
Gross profit	933	7,790
Other operating income		9
Research & development expenses	(2,393)	(1,492)
Selling & marketing expenses	(2,653)	(2,441)
General & administrative expenses	(4,777)	(4,145)
Total operating expenses	(9,823)	(8,069)
Operating loss	(8,890)	(279)
Non-operating income	465	180
Gain / (loss) on debt extinguishment	(100)
Interest and amortization of debt discount	(557)	(143)
Non-operating expenses	(372)	(313)
Loss before income tax expense	(9,454)	(555)
Income tax expense	(1,304)	(320)
Net loss	$ (10,758)	$ (875)
Earnings per Ordinary Share (USD)
Basic	$ (0.37)	$ (0.06)
Diluted	$ (0.37)	$ (0.06)
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	$ (8)	$ (4)
Other comprehensive loss	(8)	(4)
Comprehensive loss	$ (10,766)	$ (879)
F Shares
Earnings per Ordinary Share (USD)
Basic	$ (1.87)	$ (0.29)
Diluted	$ (1.87)	$ (0.29)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 18,858	$ 6,895
Accounts receivable, net of allowance for credit losses	1,565	5,053
Inventories	2,772	5,231
Prepaid expenses	471	605
Government assistance	1,826	1,718
Other current assets	625	765
Total current assets	26,117	20,267
Noncurrent assets
Deferred income tax assets	1,775	3,077
Deferred tax credits	63
Property, plant and equipment, net of accumulated depreciation	3,013	3,230
Intangible assets, net of accumulated amortization
Operating lease right-of-use assets	1,181	1,278
Other noncurrent assets	85	83
Total noncurrent assets	6,117	7,668
TOTAL ASSETS	32,234	27,935
Current Liabilities
Accounts payable	6,904	6,963
Indebtedness to related parties, current		1,278
Deferred revenue, current	2
Current portion of obligations under operating lease liabilities	355	336
Income tax payable		2
Other current liabilities	34	138
Total current liabilities	7,295	8,717
Noncurrent liabilities
Bonds, mortgages and other long-term debt	1,734	1,654
Convertible note payable, noncurrent	9,313	1,519
Indebtedness to related parties, noncurrent	7,478	9,695
Operating lease liabilities, noncurrent	754	893
Employee benefit plan obligation	436	426
Total noncurrent liabilities	19,715	14,187
TOTAL LIABILITIES	27,010	22,904
SHAREHOLDERS' EQUITY
Common stock	227	154
Additional paid-in capital	35,616	24,730
Accumulated other comprehensive income / (loss)	776	784
Accumulated deficit	(31,470)	(20,712)
Total shareholders' equity	5,224	5,031
TOTAL LIABILITIES AND EQUITY	32,234	27,935
F Shares
SHAREHOLDERS' EQUITY
Common stock	$ 75	$ 75

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	22,734,630	15,446,807
Common stock, shares outstanding	22,734,630	15,446,807
F Shares
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	1,499,700	1,499,700
Common stock, shares outstanding	1,499,700	1,499,700

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income/(Loss)	Total	Number of F Shares
As at December 31, 2023 at Dec. 31, 2022	$ 150	$ 16,731	$ (17,444)	$ 775	$ 212
Beginning balance, shares at Dec. 31, 2022	7,501,400					1,499,700
Reverse recapitalization under common control		(188)			(188)
Reverse recapitalization under common control, shares	100
Indebtedness to related parties		209			209
Comprehensive income / (loss)			(874)	(4)	(878)
As at June 30, 2024 at Jun. 30, 2023	$ 150	16,752	(18,318)	771	(645)
Beginning balance, shares at Jun. 30, 2023	7,501,500					1,499,700
As at December 31, 2023 at Dec. 31, 2023	$ 229	24,730	(20,712)	784	5,031
Beginning balance, shares at Dec. 31, 2023	15,446,807					1,499,700
Comprehensive income / (loss)			(10,758)	(8)	(10,766)
Stock-based compensation		42			42
L1 SPA	$ 33	5,057			5,090
Stock Issued During Period, Shares, Conversion of Convertible Securities	3,317,719
Anson SPA	$ 40	5,787			5,827
Anson Facility, shares	3,970,104
As at June 30, 2024 at Jun. 30, 2024	$ 302	$ 35,616	$ (31,470)	$ 776	$ 5,224
Beginning balance, shares at Jun. 30, 2024	22,734,630					1,499,700

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash Flows from operating activities:
Net loss	$ (10,758)	$ (875)
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation of property, plant & equipment	301	273
Amortization of intangible assets		1
Interest and amortization of debt discount	557	143
Loss on debt extinguishment	100
Inventory valuation allowance	243	257
Bad debt expense	19
Income tax expense, net of cash paid	1,304	320
Other non-cash expenses / (income)
Expenses settled in equity	131
Unrealized and non-cash foreign currency transactions	(42)
Changes in operating assets and liabilities, net of effects of businesses acquired
Decrease (increase) in accounts receivables	3,488	(1,252)
Decrease (increase) in inventories	2,108	(2,081)
Decrease (increase) in other current assets and prepaids, net	275	(52)
Decrease (increase) in government assistance	(107)	(488)
Decrease (increase) in other noncurrent assets, net	(2)	(5)
Increase (decrease) in accounts payable	(58)	2,095
Increase (decrease) in deferred revenue, current	2
Increase (decrease) in income taxes payable	(2)	(2)
Increase (decrease) in other current liabilities	(105)	77
Increase (decrease) in defined benefit pension liability	10	33
Increase (decrease) in interest on debt owed to related parties	(35)
Increase (decrease) in net balance owed to shareholders and their affiliates, excluding debt and interest on debt	(2,218)	658
Net cash provided by (used in) operating activities	(4,789)	(898)
Cash Flows from investing activities:
Sale (acquisition) of property, plant and equipment	(89)	(1,677)
Net cash provided by (used in) investing activities	(89)	(1,677)
Cash Flows from financing activities:
Proceeds from debt		209
Repayment of indebtedness to related parties	(1,407)
Payment of debt issue costs	(1,217)
Proceeds from convertible loan issuance	19,350
Net cash provided by (used in) financing activities	16,726	209
Effect of exchange rate changes on cash and cash equivalents	115	169
Cash and cash equivalents
Net increase (decrease) during the period	11,963	(2,197)
Balance, beginning of period	6,895	4,057	$ 4,057
Cash and cash equivalents balance, end of period	18,858	1,860	$ 6,895
Supplemental cash flow information
Cash paid for incomes taxes
Non-cash conversion of convertible loans into common stock	10,725
ROU assets obtained from operating lease	$ 62	$ 65

The SEALSQ Group

The SEALSQ Group	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The SEALSQ Group	Note 1. The SEALSQ Group SEALSQ Corp, together with its consolidated subsidiaries (“ SEALSQ Group SEALSQ Group On January 1, 2023, SEALSQ Corp acquired SEALSQ France (formerly WISeKey Semiconductors SAS), a private joint stock company (French Simplified Joint Stock Company), and its subsidiaries. Prior to that acquisition, SEALSQ did not have any operations. As further described in the notes below, the acquisition qualified as a reverse recapitalization. SEALSQ designs, develops and markets secure semiconductors worldwide as a fabless manufacturer. It provides added security and authentication layers on its semiconductors which can be tailored to customers’ needs. As an advanced chip designer, the Group holds the intellectual property (IP) for the semiconductors it sells. SEALSQ is also accredited as a Product Attestation Authority (PAA) and, as such, can issue MATTER Device Attestation Certificates (DAC). The Group anticipates being able to generate profits in the near future thanks to the increased focus on the security and authentication of IT components and networks.

Future operations and going con

Future operations and going concern	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Future operations and going concern	Note 2. Future operations and going concern The Group recorded a loss from operations in this reporting period and the accompanying condensed consolidated financial statements have been prepared assuming that the Group will continue as a going concern. The Group incurred a net operating loss of USD 8.9 18.8 , We note that, historically, the Group has been dependent on financing to augment the operating cash flow to cover its cash requirements. Based on the foregoing, Management believe it is correct to present these figures on a going concern basis.

Basis of presentation

Basis of presentation	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of presentation	Note 3. Basis of presentation The condensed consolidated financial statements are prepared in accordance with the Generally Accepted Accounting Principles in the United States of America (“ US GAAP USD These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Group’s annual financial statements for the year ended December 31, 2023, as filed in the 20-F on March 21, 2024. The Group’s interim period results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. The significant accounting policies applied in the annual consolidated financial statements of the Group as of December 31, 2023, contained in the Group’s Annual Report have been applied consistently in these unaudited condensed consolidated financial statements.

Summary of significant accounti

Summary of significant accounting policies	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Summary of significant accounting policies	Note 4. Summary of significant accounting policies Recent Accounting Pronouncements Adoption of new FASB Accounting Standard in the current year – Prior-Year Financial Statements not restated: As of January 1, 2024, the Group adopted Accounting Standards Update (ASU) 2023-01 Leases (Topic 842): Common Control Arrangements which requires all companies to amortize leasehold improvements associated with common control leases over the asset’s useful life to the common control group regardless of the lease term. ASU 2023-01 requires leasehold improvements associated with leases between entities under common control to be amortized over the useful life of the improvements until the lessee ceases to control the use of the underlying asset through a lease, at which time the remaining value of the leasehold improvement would be accounted for as a transfer between entities under common control. There was no impact on the Group's results upon adoption of the standard. New FASB Accounting Standard to be adopted in the future: In November 2023, the FASB issued ASU No 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which enhances current segment disclosures and requires additional disclosures of significant segment expenses. Summary: The amendments improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. In addition, the amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment, and contain other disclosure requirements. Effective Date: ASU 2023-07 is effective for public business entities for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The Group expects to adopt all the aforementioned guidance when effective. Management is assessing the impact of the aforementioned guidance on its consolidated financial statements but does not expect it to have a material impact. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. Summary: The intent of this standard is to enhance the decision usefulness of income tax disclosures. The standard applies to all entities subject to ASC Topic 740, Income Taxes. In addition, entities will be required to disclose the amount of income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes. They will also disclose the amount of income taxes paid (net of refunds) disaggregated by individual jurisdictions in which income taxes paid is equal to or greater than five percent of total income taxes paid. The standard also outlines additional disclosure requirements for all entities and specific updates for public business entities. Effective Date: ASU 2023-09 is effective for public business entities for fiscal years beginning after December 15, 2024. Early adoption is permitted. The Group expects to adopt all the aforementioned guidance when effective. Management is assessing the impact of the aforementioned guidance on its consolidated financial statements but does not expect it to have a material impact.

Concentration of credit risks

Concentration of credit risks	6 Months Ended
	Jun. 30, 2024
Risks and Uncertainties [Abstract]
Concentration of credit risks	Note 5. Concentration of credit risks Financial instruments that are potentially subject to credit risk consist primarily of cash and cash equivalents and trade accounts receivable. Our cash is held with large financial institutions. Management believes that the financial institutions that hold our investments are financially sound and accordingly, are subject to minimal credit risk. Deposits held with banks may exceed the amount of insurance provided on such deposits. The Group sells to large, international customers and, as a result, may maintain individually significant trade accounts receivable balances with such customers during the year. We generally do not require collateral on trade accounts receivable. Summarized below are the clients whose revenue were 10% or higher than the respective total consolidated net sales for the 6 months ended June 30, 2024 or 2023, and the clients whose trade accounts receivable balances were 10% or higher than the respective total consolidated trade accounts receivable balance as at June 30, 2024 and, or December 31, 2023. In addition, we note that some of our clients are contract manufacturers for the same companies; should these companies reduce their operations or change contract manufacturers, this would cause a decrease in our customer orders which would adversely affect our operating results. Revenue concentration Receivables concentration Revenue Unaudited 6 months ended June 30, As at June 30, As at December 31, Receivables 2024 2023 2024 (unaudited) 2023 Multinational electronics contract manufacturing company 4 22 - 15 Multinational telecommunication & hardware manufacturing company - - - 12 International digital security company 1 12 - - International software services provider 1 5 - 14 International computer and hardware manufacturer 22 3 65 12 International equipment and software manufacturer - 3 - 19 International electronic components manufacturer 12 8 - -

Fair value measurements

Fair value measurements	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair value measurements	Note 6. Fair value measurements ASC 820 establishes a three-tier fair value hierarchy for measuring financial instruments, which prioritizes the inputs used in measuring fair value. These tiers include: · Level 1, defined as observable inputs such as quoted prices in active markets; · Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and · Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. As at June 30, 2024 (unaudited) As at December 31, 2023 Fair value level USD'000 Carrying amount Fair value Carrying amount Fair value Note ref. Fair Value of Financial Instruments Level 3 Accounts receivable Accounts Receivable 1,565 1,565 5,053 5,053 3 8 Accounts payable Accounts Payable 6,904 6,904 6,963 6,963 3 16 Indebtedness to related parties, current Indebtedness to Related Parties, Current - - 1,278 1,278 3 19 Bonds, mortgages and other long-term debt 1,734 1,734 1,654 1,654 3 18 Convertible note payable, noncurrent Convertible Note Payable, Noncurrent 9,313 10,413 1,519 1,846 3 18 Indebtedness to related parties, noncurrent Indebtedness to Related Parties, Noncurrent 7,478 7,478 9,695 9,695 3 19 In addition to the methods and assumptions we use to record the fair value of financial instruments as discussed in the Fair Value Measurements section above, we used the following methods and assumptions to estimate the fair value of our financial instruments: - Accounts receivable – carrying amount approximated fair value due to their short-term nature. - Accounts payable – carrying amount approximated fair value due to their short-term nature. - Indebtedness to related parties, current – carrying amount approximated fair value. - Bonds, mortgages and other long-term debt - carrying amount approximated fair value. - Convertible note payable, noncurrent – fair value is calculated based on the present value of the future cash flows as of the reporting date. - Indebtedness to related parties, noncurrent - carrying amount approximated fair value.

Cash and cash equivalents

Cash and cash equivalents	6 Months Ended
	Jun. 30, 2024
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents	Note 7. Cash and cash equivalents Cash consists of deposits held at major banks.

Accounts receivable

Accounts receivable	6 Months Ended
	Jun. 30, 2024
Credit Loss [Abstract]
Accounts receivable	Note 8. Accounts receivable The breakdown of the accounts receivable balance is detailed below: Accounts Receivable - Schedule of Accounts Receivable As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade accounts receivable 1,634 5,103 Allowance for credit losses (69) (50) Total accounts receivable net of allowance for credit losses 1,565 5,053

Inventories

Inventories	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Inventories	Note 9. Inventories Inventories consisted of the following: Inventories - Schedule of Inventories, Current As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Raw materials 635 1,025 Work in progress 151 4,206 Finished goods 1,986 - Total inventories 2,772 5,231

Government assistance

Government assistance	6 Months Ended
	Jun. 30, 2024
Government Assistance [Abstract]
Government assistance	Note 10. Government assistance SEALSQ France SAS (formerly WISeKey Semiconductors SAS) is eligible for research tax credits provided by the French government. As at June 30, 2024, and December 31, 2023, the receivable balances in respect of these research tax credits owed to the Group were respectively USD 1,825,698 1,718,248 749,860 1,075,838

Other current assets

Other current assets	6 Months Ended
	Jun. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other current assets	Note 11. Other current assets Other current assets consisted of the following: Other Current Assets - Schedule of Other Current Assets As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Value-Added Tax Receivable 390 415 Advanced payment to suppliers 209 346 Deposits, current 5 4 Other current assets 21 - Total other current assets 625 765

Property, plant and equipment

Property, plant and equipment	6 Months Ended
	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
Property, plant and equipment	Note 12. Property, plant and equipment Property, plant and equipment, net consisted of the following: Property, Plant and Equipment - Schedule of Property, Plant and Equipment As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Machinery & equipment Machinery & Equipment 13,309 13,275 Office equipment and furniture Office Equipment and Furniture 2,321 2,321 Computer equipment and licenses Computer Equipment and Licenses 760 710 Total property, plant and equipment gross 16,390 16,306 Accumulated depreciation for: Machinery & equipment (10,476) (10,241) Office equipment and furniture (2,300) (2,279) Computer equipment and licenses (601) (556) Total accumulated depreciation (13,377) (13,076) Total property, plant and equipment, net 3,013 3,230 Depreciation charge for the 6 months ended June 30, 301 273 In the six months ended June 30, 2024 , The useful economic life of property plant and equipment is as follow: · Office equipment and furniture: 2 5 · Production masks 5 · Production tools 3 · Licenses 3 · Software 1 Software Production Tools Minimum Maximum

Intangible assets

Intangible assets	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets	Note 13. Intangible assets Intangible assets and future amortization expenses consisted of the following: Intangible Assets - Schedule of Finite-Lived Intangible Assets As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Intangible assets subject to amortization: Patents 2,281 2,281 License agreements 1,699 1,699 Other intangibles 923 923 Total intangible assets gross 4,903 4,903 Accumulated amortization for: Patents Patents (2,281) (2,281) License agreements License Agreements (1,699) (1,699) Other intangibles Other Intangibles (923) (923) Total accumulated amortization (4,903) (4,903) Total intangible assets subject to amortization, net - - Total intangible assets, net - - Amortization charge for the 6 months ended June 30, - 1 The useful economic life of intangible assets is as follow: · Patents: 5 10 · License agreements: 1 3 · Other intangibles: 5

Leases

Leases	6 Months Ended
	Jun. 30, 2024
Leases [Abstract]
Leases	Note 14. Leases The Group has historically entered into a number of lease arrangements under which it is the lessee. As at June 30, 2024, the SEALSQ Group holds four operating leases. The operating leases relate to premises. We do not sublease. All of our operating leases include multiple optional renewal periods which are not reasonably certain to be exercised. During the six months ended June 30, 2024 and 2023, we recognized rent expenses associated with our leases as follows: Leases - Schedule of Lease Costs Unaudited 6 months ended June 30, USD'000 2024 2023 Operating lease cost: Fixed rent expense 171 172 Short-term lease cost - - Net lease cost 171 172 Lease cost - Cost of sales - - Lease cost - General & administrative expenses General & Administrative Expenses 171 172 Net lease cost 171 172 In the six months ended June 30, 2024, and in the year ended December 31, 2023, we had the following cash and non-cash activities associated with our leases: Leases - Schedule of Cash and Non-Cash Activities Associated with Leases As at June 30, As at December 31, USD'000 2024 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 169 314 Non-cash investing and financing activities: Net lease cost 171 172 Additions to ROU assets obtained from: New operating lease liabilities 62 66 The following table provides the details of right-of-use assets and lease liabilities as at June 30, 2024, and as at December 31, 2023: Leases - Schedule of Right-Of-Use Assets and Lease Liabilities As at June 30, 2024 As at December 31, 2023 USD'000 Right-of-use assets: Operating leases 1,181 1,278 Total right-of-use assets 1,181 1,278 Lease liabilities: Operating leases 1,109 1,229 Total lease liabilities 1,109 1,229 As at June 30, 2024, future minimum annual lease payments were as follows, which corresponds to the future minimum lease payments under legacy ASC 840 in line with ASU 2018-11. Leases - Schedule of Future Minimum Lease Payments Other Liabilities USD'000 USD'000 USD'000 USD'000 Year Operating Short-term Finance Total 2024 170 - - 170 2025 332 - - 332 2026 303 - - 303 2027 298 - - 298 2028 and beyond 163 - - 163 Total future minimum lease payments 1,266 - - 1,266 Less effects of discounting (157) - - (157) Lease liabilities recognized 1,109 - - 1,109 As at June 30, 2024 the weighted-average remaining lease term was 3.95 For our operating leases, we calculated an estimate rate based upon the estimated incremental borrowing rate of the entity holding the lease. The weighted average discount rate associated with operating leases as at June 30, 2024 was 5.43

Other noncurrent assets

Other noncurrent assets	6 Months Ended
	Jun. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other noncurrent assets	Note 15. Other noncurrent assets Other noncurrent assets consisted of noncurrent deposits. Deposits are primarily made up of rental deposits on the premises rented by the Group.

Accounts payable

Accounts payable	6 Months Ended
	Jun. 30, 2024
Payables and Accruals [Abstract]
Accounts payable	Note 16. Accounts payable The accounts payable balance consisted of the following: Accounts Payable - Schedule of Accounts Payable As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade creditors 2,470 3,299 Accounts payable to shareholders 1,982 1,378 Accounts payable to Board Members 224 - Accounts payable to underwriters, promoters, and employees 812 1,150 Other accounts payable 1,416 1,136 Total accounts payable 6,904 6,963 Accounts payable to shareholders consist of short-term payables due to WISeKey International Holding AG in relation to interest on outstanding loans and the recharge of management services (see Notes 19 and 30). Accounts payable to underwriters, promoters and employees consist primarily of payable balances to employees in relation to holidays, bonus and 13th month accruals across the Group. Other accounts payable are mostly accruals of social charges in relation to the accrued liability to employees.

Other current liabilities

Other current liabilities	6 Months Ended
	Jun. 30, 2024
Payables and Accruals [Abstract]
Other current liabilities	Note 17. Other current liabilities Other current liabilities consisted of the following: Other Current Liabilities - Schedule of Other Current Liabilities As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Other tax payable 6 13 Customer contract liability, current 28 125 Total other current liabilities 34 138

Bonds, mortgages and other long

Bonds, mortgages and other long-term debt	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Bonds, mortgages and other long-term debt	Note 18. Bonds, mortgages and other long-term debt Production Capacity Investment Loan Agreement In November 2022, SEALSQ entered into a loan agreement with a third-party client to borrow funds for the purpose of increasing their production capacity. Under the terms of the Agreement, the client has lent to SEALSQ a total of USD 2 At inception in November 2022, a debt discount totaling USD 511,128 As at June 30, 2024, SEALSQ has not repaid any amount. The loan balance remains USD 2 266,044 1,733,956 The Group recorded a debt discount amortization expense of USD 80,160 Share Purchase Agreement with L1 Capital Global Opportunities Master Fund On July 11, 2023, the Group entered into a Securities Purchase Agreement (the “ L1 SPA L1 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 30 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily volume weighted average price VWAP Due to L1’s option to convert the loan in part or in full at any time before maturity, the L1 SPA was assessed as a share-settled debt instrument with an embedded put option. In line with ASC 480-10-55-43 and ASC 480-10-55-44, because the value that L1 will predominantly receive at settlement does not vary with the value of the shares, the settlement provision is not considered a conversion option. We assessed the put option under ASC 815 and concluded that it is clearly and closely related to its debt host and therefore did not require bifurcation. Per ASC 480-10-25, the L1 SPA was accounted for as a liability measured at fair value using the discounted cash flow method at inception. Additionally, per the terms of the L1 SPA, upon each tranche closing under the L1 SPA, SEALSQ will grant L1 the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 30, which may reset at 120% of the closing VWAP on the six-month anniversary of the tranche closing date. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. Each warrant agreement has a 5-year exercise period starting on the relevant tranche closing date. In line with ASC 470-20-25-2, for each tranche closing, the proceeds from the convertible notes with a detachable warrant were allocated to the two elements based on the relative fair values of the debt instrument without the warrant and of the warrant at time of issuance. When assessed as an equity instrument, the warrant agreement is fair valued at grant using the Black-Scholes model and the market price of the Ordinary Shares on the tranche closing date. The fair value of the debt is calculated using the discounted cash flow method. The first tranche of USD 5 5 First L1 Note convertible into SEALSQ’s Ordinary Shares, and (ii) 122,908 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity First L1 Warrant 8,000,000 114,832 250,000 200,000 The First L1 Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 632,976 11.42 4,987,363 563,112 APIC 323,744 41,088 1,086,856 During the year ended December 31, 2023, L1 converted a total of USD 4 3,940,630 210,290 705,572 On January 9, 2024, SEALSQ and L1 entered into an Amendment to the Securities Purchase Agreement (the “ First L1 Amendment 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 4 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55 Additionally, per the terms of the L1 Amendment, upon each tranche closing under the L1 SPA, SEALSQ will grant L1 the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 4, with no option to reset. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. The second tranche of USD 5 5 Second L1 Note convertible into SEALSQ’s Ordinary Shares, and (ii) 1,144,339 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity Second L1 Warrant 45,000,000 70,279 250,000 200,000 The Second L1 Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 709,490 1.60 4,594,061 668,882 277,433 42,846 1,146,315 On March 1 ,2024, SEALSQ and L1 entered into the Second Amendment to the Securities Purchase Agreement (the “ Second L1 Amendment 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 2.5% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 5.5 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 93% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55 Additionally, per the terms of the L1 Second Amendment, upon each tranche closing under the L1 SPA, SEALSQ will grant L1 the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 5.5, with no option to reset. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. The third tranche of USD 5 5 Third L1 Note convertible into SEALSQ’s Ordinary Shares, and (ii) 768,679 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity Third L1 Warrant 53,184 250,000 125,000 The Third L1 Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 553,449 1.98 4,549,701 . 542,262 270,303 32,881 937,565 During the six months ended June 30, 2024, L1 converted a total of USD 1 3.9 3,317,720 246,825 1,009,178 As at June 30, 2024, the unconverted balance was USD 1.1 5 998,871 5,101,129 Share Purchase Agreement with Anson Investments Master Fund On July 11, 2023, the Group entered into a Securities Purchase Agreement (the “ Anson SPA Anson 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) USD 30 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily VWAP of the Ordinary Shares during the ten trading days immediately preceding the notice of partial or full conversion of the Note, with a floor price of USD 2.50. The covenants include the requirement for the Group to maintain a minimum cash balance of USD 4 million and to ensure that indebtedness of the Group does not exceed 15% of the average market capitalization Due to Anson’s option to convert the loan in part or in full at any time before maturity, the Anson SPA was assessed as a share-settled debt instrument with an embedded put option. In line with ASC 480-10-55-43 and ASC 480-10-55-44, because the value that Anson will predominantly receive at settlement does not vary with the value of the shares, the settlement provision is not considered a conversion option. We assessed the put option under ASC 815 and concluded that it is clearly and closely related to its debt host and therefore did not require bifurcation. Per ASC 480-10-25, the Anson SPA was accounted for as a liability measured at fair value using the discounted cash flow method at inception. Additionally, per the terms of the Anson SPA, upon each tranche closing under the Anson SPA, SEALSQ will grant Anson the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 30, which may reset at 120% of the closing VWAP on the six-month anniversary of the tranche closing date. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. Each warrant agreement has a 5-year exercise period starting on the relevant tranche closing date. In line with ASC 470-20-25-2, for each tranche closing, the proceeds from the convertible notes with a detachable warrant were allocated to the two elements based on the relative fair values of the debt instrument without the warrant and of the warrant at time of issuance. When assessed as an equity instrument, the warrant agreement is fair valued at grant using the Black-Scholes model and the market price of the Ordinary Shares on the tranche closing date. The fair value of the debt is calculated using the discounted cash flow method. The first tranche of USD 5 5 First Anson Note convertible into SEALSQ’s Ordinary Shares, and (ii) 122,908 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity First Anson Warrant 8,000,000 64,832 250,000 200,000 The First Anson Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 632,976 11.42 4,987,363 563,112 279,375 35,457 1,042,487 During the year ended December 31, 2023, Anson converted a total of USD 4,175,000 3,996,493 198,984 708,062 Additionally, on July 10, 2023, the Group issued 8,184 4,004,677 On January 9, 2024, SEALSQ and Anson entered into an Amendment to the Securities Purchase Agreement (the “ First Anson Amendment 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 4 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55 Additionally, per the terms of the Anson Amendment, upon each tranche closing under the Anson SPA, SEALSQ will grant Anson the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 4, with no option to reset. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. The Second tranche of USD 5 5 Second Anson Note convertible into SEALSQ’s Ordinary Shares, and (ii) 1,144,339 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity Second Anson Warrant 45,000,000 . 55,279 250,000 200,000 The Second Anson Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 709,490 1.60 4,594,171 668,868 264,441 40,838 1,133,309 On March 1, 2024, SEALSQ and Anson signed a second Amendment to Securities Purchase Agreement (the “ Second Anson Amendment 10 divided into two equal tranches, in the form of Senior Unsecured Original Issue 2.5% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 5.5 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 93% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55 Additionally, per the terms of the Anson Second Amendment, upon each tranche closing under the Anson SPA, SEALSQ will grant Anson the option to acquire Ordinary Shares of SEALSQ at an initial exercise price of USD 5.5, with no option to reset. The number of warrants granted at each tranche subscription is calculated as 30% of the principal amount of each tranche divided by the VWAP of the Ordinary Shares of SEALSQ on the trading day immediately preceding the tranche closing date. The Third tranche of USD 5 5 Third Anson Note convertible into SEALSQ’s Ordinary Shares, and (ii) 768,679 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity Third Anson Warrant 38,184 250,000 125,000 The Third Anson Warrant was assessed as an equity instrument and was fair valued at grant at an amount of USD 553,449 1.98 4,549,701 542,262 256,930 31,254 924,192 During the six months ended June 30, 2024 , 825,000 5 3,970,104 200,923 1,204,299 As at June 30, 2024, the unconverted balance on the Third Anson Note was USD 5 787,720 4,212,280

Indebtedness to related parties

Indebtedness to related parties	6 Months Ended
	Jun. 30, 2024
Indebtedness To Related Parties
Indebtedness to related parties	Note 19. Indebtedness to related parties On October 1, 2016, the SEALSQ Group entered into a Revolving Credit Agreement (the “ Revolving Credit On April 1, 2019, the SEALSQ Group entered into a loan agreement with WISeCoin AG, an affiliate of WISeKey, pursuant to which WISeCoin AG commits to loan EUR 250,000 3 2.5 On October 1, 2019, the SEALSQ Group entered into a loan agreement with WISeCoin AG pursuant to which WISeCoin AG commits to loan USD 2,750,000 3 2.5 On November 12, 2020, WISeKey provided a Funding Commitment to extend shareholder loans (each the “ Shareholder Loan 4 to be drawn down over six months from the date of the commitment, in instalments of between USD 1 million and USD 1.5 million 3 On April 1, 2021, the Group entered into a Debt Remission Agreement (the “ Debt Remission” 5 5,871,714 2 2,191,282 3 3,211,668 On June 28, 2021, the Group entered into a Debt Transfer Agreement with its parent, WISeKey, and an affiliate of WISeKey, WISeKey SA, pursuant to which WISeKey extended a loan of USD 1,463,664 3 December 31, 2022 On December 31, 2021, the Group entered into a Debt Transfer Agreement with WISeKey pursuant to which WISeKey extended a loan of USD 1,910,754 3 December 31, 2023 On June 30, 2022, the Group entered into a Debt Transfer Agreement with WISeKey pursuant to which WISeKey extended a loan of USD 444,542 3 December 31, 2024 On August 31, 2022, the Group entered into a Debt Transfer Agreement with WISeKey and WISeKey SA pursuant to which WISeKey extended a loan of USD 381,879 3 December 31, 2024 On December 15, 2022, and in view of the negative equity position of the Group, WISeKey as then sole shareholder of the SEALSQ Group resolved to recapitalize the Group by forfeiting EUR 7 7,348,397 175,000 Because of the requirement under French law, we analyzed the amendment of the maturity of the loans and Revolving Credit as being part of the substance of the recapitalization transaction. We assessed the recapitalization as a capital transaction between related parties in line with ASC 470-50 and, therefore, in the year ended December 31, 2022, recorded a credit entry of USD 183,710 175,000 7,164,687 7,348,397 WISeKey International Holding AG On December 31, 2022, the Group entered into a Debt Transfer Agreement with WISeKey pursuant to which WISeKey extended a loan of USD 283,754 3 December 31, 2024 As at December 31, 2022, the Group owed WISeKey USD 1,198,746 35,340 1,163,406 On January 1, 2023, the SEALSQ Group entered into a loan agreement with WISeKey (the “ New Loan 5 2.5 December 31, 2024 1,407,497 1,198,746 208,751 1,163,406 12.3 244,091 35,340 208,751 All entities in the SEALSQ Group are subject to management fees from WISeKey and WISeKey’s affiliates. Where the payment terms have been defined, the classification between current and noncurrent follows the payment terms, however, where there is no set payment date for these fees, they have been classified as noncurrent. As at December 31, 2023, the Group owed WISeKey and WISeKey’s affiliates noncurrent debts in an aggregate amount of USD 9,695,576 1,407,497 129,691 1,277,806 . 114,400 As at December 31, 2023, the Group also held an accounts payable balance of USD 1,377,871 In 2024, the group repaid the current debt owed to WISeKey in full for a total amount of USD 1,449,911 129,691 29,406 100,285 The group also repaid some of the noncurrent debts owed to WISeKey. As at June 30, 2024, the Group owed WISeKey and WISeKey’s affiliates noncurrent debts in an aggregate amount of USD 7,477,594 44,943 As at June 30, 2024, the Group also held an accounts payable balance of USD 1,981,933

Employee benefit plans

Employee benefit plans	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Employee benefit plans	Note 20. Employee benefit plans Defined benefit post-retirement plan As at June 30, 2024, the Group maintained one defined benefit post retirement plan for the employees of SEALSQ France SAS (formerly WISeKey Semiconductors SAS). The plan is and was considered a defined benefit plan and accounted for in accordance with ASC 715 Compensation – Retirement Benefits. This model allocates pension costs over the service period of employees in the plan. The underlying principle is that employees render services ratably over this period, and therefore, the income statement effects of pensions should follow a similar pattern. ASC 715 requires recognition of the funded status or difference between the fair value of plan assets and the projected benefit obligations of the pension plan on the balance sheet, with a corresponding adjustment recorded in the net loss. If the projected benefit obligation exceeds the fair value of the plan assets, then that difference or unfunded status represents the pension liability. The Group records net service cost as an operating expense and other components of defined benefit plans as a non-operating expense in the statement of comprehensive loss. The liabilities and annual income or expense of the pension plan are determined using methodologies that involve several actuarial assumptions, the most significant of which are the discount rate and the long-term rate of asset return (based on the market-related value of assets). The fair value of plan assets is determined based on prevailing market prices. The defined benefit pension plan maintained by SEALSQ France SAS, and its obligations to employees in terms of retirement benefits, is limited to a lump sum payment based on remuneration and length of service, determined for each employee. The plan is not funded, which means that there are no plan assets. The pension liability calculated as at June 30, 2024 is based on annual personnel costs and assumptions as of December 31, 2023. The expected future cash flows to be paid by the Group for employer contribution for the year ended December 31, 2024, are USD 38,000 Movement in Funded Status 6 months ended June 30, USD'000 2024 2023 Net Service cost 18 19 Interest cost / (credit) 6 7 Total Net Periodic Benefit Cost / (credit) 24 26 Employer contributions paid in the period (19) (13) Total Cashflow (19) (13)

Commitments and contingencies

Commitments and contingencies	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingencies	Note 21. Commitments and contingencies Lease commitments The future payments due under leases are shown in Note 14. Guarantees Our software and hardware product sales agreements generally include certain provisions for indemnifying customers against liabilities if our products infringe a third party’s intellectual property rights. Certain of our product sales agreements also include provisions indemnifying customers against liabilities in the event we breach confidentiality or service level requirements. It is not possible to determine the maximum potential amount under these indemnification agreements due to our lack of history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, we have not incurred any costs as a result of such indemnifications and have not accrued any liabilities related to such obligations in our condensed consolidated financial statements.

Stockholders_ equity

Stockholders’ equity	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Stockholders’ equity	Note 22. Stockholders’ equity Stockholders’ equity consisted of the following: Stockholders' Equity - Schedule of Stock by Class SEALSQ Corp SEALSQ Corp As at June 30, 2024 As at December 31, 2023 Share Capital Ordinary Shares F Shares Ordinary Shares F Shares Par value per share USD 0.01 USD 0.05 USD 0.01 USD 0.05 Share capital (in USD) 227,346 74,985 154,468 74,985 Total number of authorized shares 200,000,000 10,000,000 200,000,000 10,000,000 Total number of fully paid-in issued shares 22,734,630 1,499,700 15,446,807 1,499,700 Total number of fully paid-in outstanding shares 22,734,630 1,499,700 15,446,807 1,499,700 Total share capital (in USD) 302,331 229,453

Revenue

Revenue	6 Months Ended
	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenue	Note 23. Revenue Nature of goods and services The Group generates revenues from the sale of semiconductors secure chips and from Digital Certificates, Software as a Service, Software license and Post-Contract Customer Support (PCS) for cybersecurity applications. Products and services are sold principally separately but may also be sold in bundled packages. For bundled packages, the Group accounts for individual products and services separately if they are distinct – i.e. if a product or service is separately identified from other items in the bundled package and if a customer can benefit from it. The consideration is allocated between separate products and services in a bundle based on their stand-alone selling prices. The stand-alone selling prices are determined based on the list prices when available or estimated based on the Adjusted Market Assessment approach (e.g. licenses), or the Expected Cost-Plus Margin approach (e.g., PCS). The following is a description of the principal activities from which the Group generates its revenue across all reportable segments. Product and services Nature, timing of satisfaction of performance obligations and significant payment terms Semiconductors secure chips Although they may be sold in connection with other services of the Group, they always represent distinct performance obligations. The Group recognizes revenue when a customer takes possession of the chips, which usually occurs when the goods are delivered. Customers typically pay once goods are delivered. SaaS The Group’s SaaS arrangements cover the provision of cloud-based certificates for authentication purposes such as Device Attestation Certificates (DACs) for MATTER Protocol, IoT Device to Cloud Authentication, or Device-to-Device Authentication. The Group recognizes revenue on a straight-line basis over the service period which is usually yearly renewable. Where lifelong certificates are issued, the Group recognizes revenue when the certificate is delivered and usable by the customer. Customers usually pay ahead of the service period; the paid amounts which have not yet been recognized as revenue are shown as deferred revenue on the balance sheet. Software and INeS Certificate Management Platform The Group provides software for certificates life-cycle management and signing and authentication solutions through its INeS Certificate Management Platform. The Group recognizes revenue when the software has been delivered or the platform has been set up, and PCS revenue over the service period which is usually one-year renewable. Customers pay upon delivery of the software or over the PCS. Implementation, integration and other services The Group provides services to implement and integrate multi-element cybersecurity solutions. Most of the time the solution elements are off-the-shelve non-customized components which represent distinct performance obligations. Implementation and integration services are payable when rendered, while other revenue elements are payable and recognized as per their specific description in this section. Disaggregation of revenue The following table shows the Group’s revenues disaggregated by product or service type: Revenue - Schedule of Disaggregation of Revenue Disaggregation of revenue Revenue recognized At one point in time Total (unaudited) At One Point in Time 6 months ended June 30, 6 months ended June 30, USD'000 2024 2023 2024 2023 Secure Microcontrollers Segment Secure chips Upon delivery 3,872 10,156 3,872 10,156 Total Secure Microcontrollers Segment 3,872 10,156 3,872 10,156 All Other Segment Secure chips Upon delivery 956 4,595 956 4,595 Total All Other Segment 956 4,595 956 4,595 Total Revenue 4,828 14,751 4,828 14,751 For the six months ended June 30, 2024 and 2023, the Group recorded no revenues related to performance obligations satisfied in prior periods. The following table shows the Group’s revenues disaggregated by geography, based on our customers’ billing addresses: Revenue - Schedule of Disaggregation of Revenue by Geographic Areas Net sales by region Unaudited 6 months ended June 30, USD'000 2024 2023 Secure Microcontrollers Segment North America North America 2,950 7,956 Europe, Middle East and Africa Europe, Middle East and Africa 589 1,388 Asia Pacific Asia Pacific 333 812 Total Secure Microcontrollers segment revenue 3,872 10,156 All Other Segment North America 108 418 Europe, Middle East and Africa 291 3,033 Asia Pacific 557 1,144 Total All Other segment revenue 956 4,595 Total net sales 4,828 14,751 Contract assets, deferred revenue and contract liability Our contract assets, deferred revenue and contract liability consist of: Revenue - Schedule of Contract Assets, Deferred Revenue and Contract Liability As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade accounts receivable Trade accounts receivable - Secure Microcontrollers Segment Secure Microcontrollers Segment 1,255 3,553 Trade accounts receivable - All Other Segment All Other Segment 310 1,550 Total trade accounts receivable 1,565 5,103 Customer contract liabilities Customer contract liabilities - current 28 125 Total customer contract liabilities 28 125 Deferred revenue Deferred revenue - Secure Microcontrollers Segment 2 - Total deferred revenue 2 - Increases or decreases in trade accounts receivable, contract assets, deferred revenue and contract liability were primarily due to normal timing differences between our performance and customer payments. Remaining performance obligations As of June 30, 2024, approximately USD 1,799

Stock-based compensation

Stock-based compensation	6 Months Ended
	Jun. 30, 2024
Compensation Related Costs [Abstract]
Stock-based compensation	Note 24. Stock-based compensation Employee stock option plans The F Share Option Plan (“ FSOP ESOP Grants In the 12 months to December 31, 2023, the Group granted a total of 77 The options granted consisted of 77 The options granted were valued at grant date using the Black-Scholes model. There was no grant of options on Ordinary Shares under the ESOP in the year ended December 31, 2023. In the 6 months to June 30, 2024, the Group granted a total of 36,937 The options granted consisted of 36,937 The options granted were valued at grant date using the Black-Scholes model. There was no grant of options on F Shares under the FSOP in the six months ended June 30, 2024. Stock option charge to the income statement The Group calculates the fair value of options granted by applying the Black-Scholes option pricing model. Expected volatility is based on the other companies (in the same industry and of a similar size) share price volatility. In the six months ended June 30, 2024, a total charge of USD 42,095 The following assumptions were used to calculate the compensation expense and the calculated fair value of stock options granted: Stock-Based Compensation - Schedule of Share Based Payment Award, Stock Options, Valuation Assumptions Assumption June 30, 2024 June 30, 2023 Dividend yield None None Risk-free interest rate used (average) 1.00 1.00 Expected market price volatility 65.31 73.19 Average remaining expected life of stock options on F Shares (years) 5.69 6.69 Average remaining expected life of stock options on Ordinary Shares (years) 6.91 n/a Unvested options to employees as at June 30, 2024 were recognized prorata temporis over the service period (grant date to vesting date). The following tables illustrate the development of the Group’s non-vested options in F Shares and Ordinary Shares for the six months ended June 30, 2024. Stock-Based Compensation - Schedule of Share Based Compensation Stock Options Activity Non-vested options on F Shares Number of F Shares under options Weighted-average grant date fair value (USD) Non-vested options as at December 31, 2022 — — Granted 77 6.39 Vested 77 6.39 Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2023 — — Granted - - Vested - - Non-vested forfeited or cancelled - - Non-vested options as at June 30, 2024 — — Non-vested options on Ordinary Shares Number of Ordinary Shares under options Weighted-average grant date fair value (USD) Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2022 — — Granted - - Vested - - Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2023 — — Granted 36,937 1.14 Vested 36,937 1.14 Non-vested forfeited or cancelled - - Non-vested options as at June 30, 2024 — — The following tables summarize the Group’s stock option activity for the six months ended June 30, 2024. Options on F Shares SEAL F Shares under options Weighted-average exercise price Weighted average remaining contractual term Aggregate intrinsic value Outstanding as at December 31, 2022 — — — — Of which vested - - - - Granted 77 0.05 - - Outstanding as at December 31, 2023 77 0.05 6.19 19 Of which vested 77 0.05 6.19 19 Granted - - - - Outstanding as at June 30, 2024 77 0.05 5.69 9 Of which vested 77 0.05 5.69 9 Options on Ordinary Shares SEAL Ordinary Shares under options Weighted-average exercise price Weighted average remaining contractual term Aggregate intrinsic value Outstanding as at December 31, 2022 — — — — Of which vested - - - - Granted - - - - Outstanding as at December 31, 2023 — — — — Of which vested - - - - Granted 36,937 0.01 - - Outstanding as at June 30, 2024 36,937 0.01 6.91 29,804 Of which vested 36,937 0.01 6.91 29,804 Summary of stock-based compensation expenses Stock-Based Compensation - Schedule of Compensation Expense Stock-based compensation expenses Unaudited 6 months ended June 30, USD 2024 2023 In relation to Employee Stock Option Plans (ESOP) 42 — In relation to non-ESOP Option Agreements — — Total 42 — Stock-based compensation expenses are recorded under the following expense categories in the income statement. Stock-based compensation expenses Unaudited 6 months ended June 30, USD'000 2024 2023 Research & development expenses — — Selling & marketing expenses — — General & administrative expenses 42 — Total 42 —

Non-operating income

Non-operating income	6 Months Ended
	Jun. 30, 2024
Other Income and Expenses [Abstract]
Non-operating income	Note 25. Non-operating income Non-operating income consisted of the following: Non-Operating Income - Schedule of Non-Operating Income Unaudited 6 months ended June 30, USD'000 2024 2023 Foreign exchange gain 204 125 Interest income 254 55 Other 7 - Total non-operating income 465 180

Non-operating expenses

Non-operating expenses	6 Months Ended
	Jun. 30, 2024
Non-operating Expenses
Non-operating expenses	Note 26. Non-operating expenses Non-operating expenses consisted of the following: Non-Operating Expenses - Schedule of Non-Operating Expenses Unaudited 6 months ended June 30, USD'000 2024 2023 Foreign exchange losses 3 253 Financial charges 2 2 Interest expense 361 52 Other 6 6 Total non-operating expenses 372 313

Income taxes

Income taxes	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Income taxes	Note 27. Income taxes The Group assesses the recoverability of its deferred tax assets and, to the extent recoverability does not satisfy the “more likely than not” recognition criterion under ASC 740, records a valuation allowance against its deferred tax assets. The Group considered its recent operating results and anticipated future taxable income in assessing the need for its valuation allowance. In the years up until and including 2021, the Group recorded a valuation allowance for the full amount of its deferred tax assets. However, in view of the Group’s income before income tax in the year ended December 31, 2022, and of the anticipated future taxable income per management’s forecast, the Group assessed that the recoverability of its deferred tax assets partially satisfied the “more likely than not” recognition criterion under ASC 740 as at December 31, 2022 and, therefore, partially reversed the valuation allowance previously recorded. As at June 30, 2024, the Group assessed that the recoverability of its deferred tax assets still partially satisfied the “more likely than not” recognition criteria under ASC 740, but that it would spread over more years than initially calculated. The Group considered its recent operating results and anticipated future taxable income in assessing the need for its valuation allowance and assessed that the valuation allowance should be increased to reflect the expected delay in the recoverability of its deferred tax assets, as reflected in the tables below. The Group’s deferred tax assets and liabilities consist of the following: Income Taxes - Schedule of Deferred Tax Assets and Liabilities Deferred income tax assets/(liabilities) As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Switzerland Switzerland - - Foreign Foreign 1,775 3,077 Deferred income tax assets / (liabilities) 1,775 3,077 Deferred tax assets and liabilities As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Defined benefit accrual (3) (3) Tax loss carryforwards 6,710 4,468 Add back loss carryforwards used for the debt remission 803 828 Valuation allowance (5,735) (2,216) Deferred tax assets / (liabilities) 1,775 3,077

Segment reporting

Segment reporting	6 Months Ended
	Jun. 30, 2024
Segment Reporting [Abstract]
Segment reporting	Note 28. Segment reporting The Group has one operating segment that meets the criteria set in ASC 280-10-50: Secure Microcontrollers. The Group’s chief operating decision maker, who is its Chief Executive Officer, reviews financial performance of this operating segment for purposes of allocating resources and assessing budgets and performance. The remaining non-reportable operating segments and other business activities that are not identified as operating segments are combined and disclosed in an “all other” standalone category. The Secure Microcontrollers segment encompasses the design, manufacturing, sales and distribution of high-end, Common Criteria EAL5+ & FIPS 140-3-certified secure microprocessors. Unaudited 6 months ended June 30, 2024 2023 Secure Microcontrollers All Other Total Secure Microcontrollers All Other Total Revenues from external customers 3,872 956 4,828 10,156 4,595 14,751 Intersegment revenues - 1,084 1,084 - 231 231 Interest revenue 204 50 254 38 17 55 Interest expense 290 71 361 36 16 52 Depreciation and amortization 241 60 301 190 86 275 Segment income /(loss) before income taxes (4,180) (5,222) (9,402) 718 (1,262) (544) Profit / (loss) from intersegment sales - 52 52 - 11 11 Income tax recovery / (expense) (1,046) (258) (1,304) - (320) (320) Segment assets 12,732 23,938 36,670 13,279 7,864 24,148 Unaudited 6 months ended June 30, 2024 2023 USD'000 USD'000 Revenue reconciliation Total revenue for reportable segment 5,912 14,982 Elimination of intersegment revenue Intersegment (1,084) (231) Total consolidated revenue 4,828 14,751 Loss reconciliation Total loss from reportable segments (9,402) (544) Elimination of intersegment profits (52) (11) Loss before income taxes (9,454) (555) As at June 30, 2024 2023 USD'000 USD'000 Asset reconciliation Total assets from reportable segments Reportable Segments 36,670 24,148 Elimination of intersegment receivables Intersegment (4,436) (71) Consolidated total assets 32,234 24,077 Revenue and property, plant and equipment by geography The following tables summarize geographic information for net sales based on the billing address of the customer, and for property, plant and equipment. Segment Reporting - Schedule of Revenue and Property, Plant and Equipment by Geography Net sales by region Unaudited 6 months ended June 30, USD'000 2024 2023 North America 3,058 8,374 Europe, Middle East & Africa 880 4,421 Asia Pacific 890 1,956 Total net sales 4,828 14,751 Property, plant and equipment, net of depreciation, by region As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Europe, Middle East & Africa 3,013 3,230 Total Property, plant and equipment, net of depreciation 3,013 3,230

Loss per share

Loss per share	6 Months Ended
	Jun. 30, 2024
Earnings per Ordinary Share (USD)
Loss per share	Note 29. Loss per share The computation of basic and diluted net earnings / (loss) per share for the Group is as follows: Earnings/(Loss) Per Share - Schedule of Earnings Per Shares, Basic and Diluted Unaudited 6 months ended June 30, Earnings / (loss) per share 2024 2023 Net loss (USD'000) (10,758) (875) Effect of potentially dilutive instruments on net earnings (USD'000) n/a n/a Net loss after effect of potentially dilutive instruments (USD'000) (10,758) (875) Ordinary Shares used in net earnings / (loss) per share computation: Weighted average shares outstanding - basic 21,199,165 7,501,500 Effect of potentially dilutive equivalent shares n/a n/a Weighted average shares outstanding - diluted 21,199,165 7,501,500 Net earnings / (loss) per Ordinary Share Basic weighted average loss per share (USD) (0.37) (0.06) Diluted weighted average loss per share (USD) (0.37) (0.06) F Shares used in net earnings / (loss) per share computation: Weighted average shares outstanding - basic 1,499,700 1,499,700 Effect of potentially dilutive equivalent shares n/a n/a Weighted average shares outstanding - diluted 1,499,700 1,499,700 Net earnings / (loss) per F Share Basic weighted average loss per share (USD) (1.87) (0.29) Diluted weighted average loss per share (USD) (1.87) (0.29)

Legal proceedings

Legal proceedings	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Legal proceedings	Note 30. Legal proceedings We are currently not party to any legal proceedings and claims that are not provided for in our financial statements. Starting in 2023 until April 2024, the French customs authorities carried out an audit of our exportation documents and found some administrative errors. In June 2024, we submitted observations to the French customs authorities contesting the legal qualification of the infringement notified. As at June 30, 2024, the French customs authorities have not yet disclosed their conclusion or a course of action in relation to their findings. We note that the administrative errors identified in our exportation documents had no financial impact on our current or historical financial statements and did not result in any error or misstatement in our historical financial statements. However, management believes that there is a reasonable possibility that a penalty may be incurred in relation to this matter, but a reasonable estimate of such loss cannot be made as at June 30, 2024.

Related parties disclosure

Related parties disclosure	6 Months Ended
	Jun. 30, 2024
Related Party Transactions [Abstract]
Related parties disclosure	Note 31. Related parties disclosure Subsidiaries As at June 30, 2024, the condensed consolidated financial statements of the Group include the entities listed in the following table: Related Parties Disclosure - Schedule of Subsidiary/Parent Ownership Interest Group Company Name Country of incorporation Year of incorporation Share Capital % ownership % ownership Nature of business SEALSQ France SAS France 2010 EUR 1,473,162 100.0 100.0 Chip manufacturing, sales & distribution WISeKey IoT Japan KK Japan 2017 JPY 1,000,000 100.0 100.0 Sales & distribution WISeKey IoT Taiwan Taiwan 2017 TWD 100,000 100.0 100.0 Sales & distribution Related party transactions and balances Receivables as at Payables as at Net expenses to Net income from Related Parties June 30, December 31, June 30, December 31, in the 6 months ended June 30, in the 6 months ended June 30, (in USD'000) 2024 (unaudited) 2023 2024 (unaudited) 2023 2024 (unaudited) 2023 (unaudited) 2024 (unaudited) 2023 (unaudited) 1 John O’Hara - - 158 - - - - - 2 Ruma Bose - - 33 28 28 - - - 3 Cristina Dolan - - 5 - 12 - - - 4 David Fergusson - - - - 9 - - - 5 Danil Kerimi - - 22 8 44 - - - 6 Eric Pellaton - - 5 - 13 - - - 7 WISeKey International Holding AG - - 4,643 7,100 2,066 1,898 - - 8 WISeKey SA - - 551 - 510 - - - 9 WISeKey USA Inc - - - 981 - 492 - - 10 WISeKey Semiconductors GmbH - - 849 881 84 81 - - 11 WISeCoin AG - - 3,417 3,389 37 37 - - Total - - 9,683 12,387 2,803 2,508 - - 1. John O’Hara is a member of the Board and the CFO of SEALSQ Corp. A short-term payable to John O’Hara in an amount of USD 158,314 was outstanding as at June 30, 2024, made up of accrued bonuses. 2. Ruma Bose is a member of the board of directors of SEALSQ Corp. The expenses recorded in the income statement in the six months ended, and the payable balance as at, June 30, 2024 relate to her Board fee. 3. Cristina Dolan is a member of the board of directors of SEALSQ Corp. The expenses recorded in the income statement in the six months ended, and the payable balance as at, June 30, 2024 relate to her Board fee. 4. David Fergusson is a member of the board of directors of SEALSQ Corp. The expenses recorded in the income statement the six months ended June 30, 2024 relate to his Board fee. 5. Danil Kerimi is a member of the board of directors of SEALSQ Corp. The expenses recorded in the income statement in the six months ended, and the payable balance as at, June 30, 2024 relate to his Board fee. 6. Eric Pellaton is a member of the board of directors of SEALSQ Corp. The expenses recorded in the income statement in the six months ended, and the payable balance as at, June 30, 2024 relate to his Board fee. 7. WISeKey International Holding AG has a controlling interest in the SEALSQ Group . . 8. WISeKey SA is part of the group headed by WISeKey International Holding AG (the “WISeKey Group 9. WISeKey USA Inc is part of the WISeKey Group and employs sales staff who work for the SEALSQ Group. The expenses in relation to WISeKey USA Inc. in the six months ended June 30, 2024 relate to the recharge of employee costs. 10. WISeKey Semiconductors GmbH is part of the WISeKey Group and employs sales staff who work for the SEALSQ Group. The expenses in relation to WISeKey Semiconductors GmbH in the six months ended June 30, 2024 relate to the recharge of employee costs . 11. WISeCoin AG is part of the WISeKey Group. The expenses recorded in the six months ended June 30, 2024 relate to interest on an outstanding loan.

Subsequent events

Subsequent events	6 Months Ended
	Jun. 30, 2024
Subsequent Events [Abstract]
Subsequent events	Note 32. Subsequent events L1 SPA Subsequent Event Private Placement After June 30, 2024, L1 converted the remaining balance of USD 1.1 450,000 4,103,597 Anson SPA After June 30, 2024, Anson converted USD 450,000 1,275,000

Impacts of ongoing conflicts

Impacts of ongoing conflicts	6 Months Ended
	Jun. 30, 2024
Impacts Of Ongoing Conflicts
Impacts of ongoing conflicts	Note 33. Impacts of ongoing conflicts Impacts of the war in Ukraine Following the outbreak of the war in Ukraine in late February 2022, several countries imposed sanctions on Russia, Belarus and certain regions in Ukraine. There has been an abrupt change in the geopolitical situation, with significant uncertainty about the duration of the conflict, changing scope of sanctions and retaliation actions including new laws. The SEALSQ Group does not have any operation or customer in Russia, Belarus or Ukraine, and, as such, does not foresee any direct impact of the war on its operations. However, the war has also contributed to an increase in volatility in currency markets, energy prices, raw material and other input costs, which may impact the Group’s supply chain in the future. As at June 30, 2024, SEALSQ has assessed the consequences of the war for its financial disclosures and considered the impacts on key judgments and significant estimates, and has concluded that no changes were required. SEALSQ will continue to monitor these areas of increased risk for material changes. Impacts of the Israel–Hamas conflict Israel’s declaration of war on Hamas in October 2023 has degraded the geopolitical environment in the region and created uncertainty. The SEALSQ Group does not have any operation or customer in that region, and, as such, does not foresee any direct impact of the war on its operations. However, depending on its duration and intensity, the war may adversely affect the global economy, financial markets and the Group’s supply chain in the future. As at June 30, 2024, SEALSQ has assessed the consequences of the war for its financial disclosures and considered the impacts on key judgments and significant estimates, and has concluded that no changes were required. SEALSQ will continue to monitor these areas of increased risk for material changes.

Summary of significant accoun_2

Summary of significant accounting policies (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adoption of new FASB Accounting Standard in the current year – Prior-Year Financial Statements not restated: As of January 1, 2024, the Group adopted Accounting Standards Update (ASU) 2023-01 Leases (Topic 842): Common Control Arrangements which requires all companies to amortize leasehold improvements associated with common control leases over the asset’s useful life to the common control group regardless of the lease term. ASU 2023-01 requires leasehold improvements associated with leases between entities under common control to be amortized over the useful life of the improvements until the lessee ceases to control the use of the underlying asset through a lease, at which time the remaining value of the leasehold improvement would be accounted for as a transfer between entities under common control. There was no impact on the Group's results upon adoption of the standard. New FASB Accounting Standard to be adopted in the future: In November 2023, the FASB issued ASU No 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which enhances current segment disclosures and requires additional disclosures of significant segment expenses. Summary: The amendments improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. In addition, the amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment, and contain other disclosure requirements. Effective Date: ASU 2023-07 is effective for public business entities for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The Group expects to adopt all the aforementioned guidance when effective. Management is assessing the impact of the aforementioned guidance on its consolidated financial statements but does not expect it to have a material impact. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. Summary: The intent of this standard is to enhance the decision usefulness of income tax disclosures. The standard applies to all entities subject to ASC Topic 740, Income Taxes. In addition, entities will be required to disclose the amount of income taxes paid (net of refunds received) disaggregated by federal, state, and foreign taxes. They will also disclose the amount of income taxes paid (net of refunds) disaggregated by individual jurisdictions in which income taxes paid is equal to or greater than five percent of total income taxes paid. The standard also outlines additional disclosure requirements for all entities and specific updates for public business entities. Effective Date: ASU 2023-09 is effective for public business entities for fiscal years beginning after December 15, 2024. Early adoption is permitted. The Group expects to adopt all the aforementioned guidance when effective. Management is assessing the impact of the aforementioned guidance on its consolidated financial statements but does not expect it to have a material impact.

Concentration of credit risks (

Concentration of credit risks (Tables)	6 Months Ended
	Jun. 30, 2024
Risks and Uncertainties [Abstract]
Concentration of Credit Risks - Schedule of Concentration of Risk by Risk Factor	Revenue concentration Receivables concentration Revenue Unaudited 6 months ended June 30, As at June 30, As at December 31, Receivables 2024 2023 2024 (unaudited) 2023 Multinational electronics contract manufacturing company 4 22 - 15 Multinational telecommunication & hardware manufacturing company - - - 12 International digital security company 1 12 - - International software services provider 1 5 - 14 International computer and hardware manufacturer 22 3 65 12 International equipment and software manufacturer - 3 - 19 International electronic components manufacturer 12 8 - -

Fair value measurements (Tables

Fair value measurements (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis	As at June 30, 2024 (unaudited) As at December 31, 2023 Fair value level USD'000 Carrying amount Fair value Carrying amount Fair value Note ref. Fair Value of Financial Instruments Level 3 Accounts receivable Accounts Receivable 1,565 1,565 5,053 5,053 3 8 Accounts payable Accounts Payable 6,904 6,904 6,963 6,963 3 16 Indebtedness to related parties, current Indebtedness to Related Parties, Current - - 1,278 1,278 3 19 Bonds, mortgages and other long-term debt 1,734 1,734 1,654 1,654 3 18 Convertible note payable, noncurrent Convertible Note Payable, Noncurrent 9,313 10,413 1,519 1,846 3 18 Indebtedness to related parties, noncurrent Indebtedness to Related Parties, Noncurrent 7,478 7,478 9,695 9,695 3 19

Accounts receivable (Tables)

Accounts receivable (Tables)	6 Months Ended
	Jun. 30, 2024
Credit Loss [Abstract]
Accounts Receivable - Schedule of Accounts Receivable	The breakdown of the accounts receivable balance is detailed below: Accounts Receivable - Schedule of Accounts Receivable As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade accounts receivable 1,634 5,103 Allowance for credit losses (69) (50) Total accounts receivable net of allowance for credit losses 1,565 5,053

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Inventories - Schedule of Inventories, Current	Inventories consisted of the following: Inventories - Schedule of Inventories, Current As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Raw materials 635 1,025 Work in progress 151 4,206 Finished goods 1,986 - Total inventories 2,772 5,231

Other current assets (Tables)

Other current assets (Tables)	6 Months Ended
	Jun. 30, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Current Assets - Schedule of Other Current Assets	Other current assets consisted of the following: Other Current Assets - Schedule of Other Current Assets As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Value-Added Tax Receivable 390 415 Advanced payment to suppliers 209 346 Deposits, current 5 4 Other current assets 21 - Total other current assets 625 765

Property, plant and equipment (

Property, plant and equipment (Tables)	6 Months Ended
	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment - Schedule of Property, Plant and Equipment	Property, plant and equipment, net consisted of the following: Property, Plant and Equipment - Schedule of Property, Plant and Equipment As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Machinery & equipment Machinery & Equipment 13,309 13,275 Office equipment and furniture Office Equipment and Furniture 2,321 2,321 Computer equipment and licenses Computer Equipment and Licenses 760 710 Total property, plant and equipment gross 16,390 16,306 Accumulated depreciation for: Machinery & equipment (10,476) (10,241) Office equipment and furniture (2,300) (2,279) Computer equipment and licenses (601) (556) Total accumulated depreciation (13,377) (13,076) Total property, plant and equipment, net 3,013 3,230 Depreciation charge for the 6 months ended June 30, 301 273

Intangible assets (Tables)

Intangible assets (Tables)	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets - Schedule of Finite-Lived Intangible Assets	Intangible assets and future amortization expenses consisted of the following: Intangible Assets - Schedule of Finite-Lived Intangible Assets As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Intangible assets subject to amortization: Patents 2,281 2,281 License agreements 1,699 1,699 Other intangibles 923 923 Total intangible assets gross 4,903 4,903 Accumulated amortization for: Patents Patents (2,281) (2,281) License agreements License Agreements (1,699) (1,699) Other intangibles Other Intangibles (923) (923) Total accumulated amortization (4,903) (4,903) Total intangible assets subject to amortization, net - - Total intangible assets, net - - Amortization charge for the 6 months ended June 30, - 1

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2024
Leases [Abstract]
Leases - Schedule of Lease Costs	During the six months ended June 30, 2024 and 2023, we recognized rent expenses associated with our leases as follows: Leases - Schedule of Lease Costs Unaudited 6 months ended June 30, USD'000 2024 2023 Operating lease cost: Fixed rent expense 171 172 Short-term lease cost - - Net lease cost 171 172 Lease cost - Cost of sales - - Lease cost - General & administrative expenses General & Administrative Expenses 171 172 Net lease cost 171 172
Leases - Schedule of Cash and Non-Cash Activities Associated with Leases	In the six months ended June 30, 2024, and in the year ended December 31, 2023, we had the following cash and non-cash activities associated with our leases: Leases - Schedule of Cash and Non-Cash Activities Associated with Leases As at June 30, As at December 31, USD'000 2024 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases 169 314 Non-cash investing and financing activities: Net lease cost 171 172 Additions to ROU assets obtained from: New operating lease liabilities 62 66
Leases - Schedule of Right-Of-Use Assets and Lease Liabilities	The following table provides the details of right-of-use assets and lease liabilities as at June 30, 2024, and as at December 31, 2023: Leases - Schedule of Right-Of-Use Assets and Lease Liabilities As at June 30, 2024 As at December 31, 2023 USD'000 Right-of-use assets: Operating leases 1,181 1,278 Total right-of-use assets 1,181 1,278 Lease liabilities: Operating leases 1,109 1,229 Total lease liabilities 1,109 1,229
Leases - Schedule of Future Minimum Lease Payments	As at June 30, 2024, future minimum annual lease payments were as follows, which corresponds to the future minimum lease payments under legacy ASC 840 in line with ASU 2018-11. Leases - Schedule of Future Minimum Lease Payments Other Liabilities USD'000 USD'000 USD'000 USD'000 Year Operating Short-term Finance Total 2024 170 - - 170 2025 332 - - 332 2026 303 - - 303 2027 298 - - 298 2028 and beyond 163 - - 163 Total future minimum lease payments 1,266 - - 1,266 Less effects of discounting (157) - - (157) Lease liabilities recognized 1,109 - - 1,109

Accounts payable (Tables)

Accounts payable (Tables)	6 Months Ended
	Jun. 30, 2024
Payables and Accruals [Abstract]
Accounts Payable - Schedule of Accounts Payable	The accounts payable balance consisted of the following: Accounts Payable - Schedule of Accounts Payable As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade creditors 2,470 3,299 Accounts payable to shareholders 1,982 1,378 Accounts payable to Board Members 224 - Accounts payable to underwriters, promoters, and employees 812 1,150 Other accounts payable 1,416 1,136 Total accounts payable 6,904 6,963

Other current liabilities (Tabl

Other current liabilities (Tables)	6 Months Ended
	Jun. 30, 2024
Payables and Accruals [Abstract]
Other Current Liabilities - Schedule of Other Current Liabilities	Other current liabilities consisted of the following: Other Current Liabilities - Schedule of Other Current Liabilities As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Other tax payable 6 13 Customer contract liability, current 28 125 Total other current liabilities 34 138

Employee benefit plans (Tables)

Employee benefit plans (Tables)	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations	Movement in Funded Status 6 months ended June 30, USD'000 2024 2023 Net Service cost 18 19 Interest cost / (credit) 6 7 Total Net Periodic Benefit Cost / (credit) 24 26 Employer contributions paid in the period (19) (13) Total Cashflow (19) (13)

Stockholders_ equity (Tables)

Stockholders’ equity (Tables)	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Stockholders' Equity - Schedule of Stock by Class	Stockholders’ equity consisted of the following: Stockholders' Equity - Schedule of Stock by Class SEALSQ Corp SEALSQ Corp As at June 30, 2024 As at December 31, 2023 Share Capital Ordinary Shares F Shares Ordinary Shares F Shares Par value per share USD 0.01 USD 0.05 USD 0.01 USD 0.05 Share capital (in USD) 227,346 74,985 154,468 74,985 Total number of authorized shares 200,000,000 10,000,000 200,000,000 10,000,000 Total number of fully paid-in issued shares 22,734,630 1,499,700 15,446,807 1,499,700 Total number of fully paid-in outstanding shares 22,734,630 1,499,700 15,446,807 1,499,700 Total share capital (in USD) 302,331 229,453

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenue - Schedule of Disaggregation of Revenue	The following table shows the Group’s revenues disaggregated by product or service type: Revenue - Schedule of Disaggregation of Revenue Disaggregation of revenue Revenue recognized At one point in time Total (unaudited) At One Point in Time 6 months ended June 30, 6 months ended June 30, USD'000 2024 2023 2024 2023 Secure Microcontrollers Segment Secure chips Upon delivery 3,872 10,156 3,872 10,156 Total Secure Microcontrollers Segment 3,872 10,156 3,872 10,156 All Other Segment Secure chips Upon delivery 956 4,595 956 4,595 Total All Other Segment 956 4,595 956 4,595 Total Revenue 4,828 14,751 4,828 14,751
Revenue - Schedule of Disaggregation of Revenue by Geographic Areas	The following table shows the Group’s revenues disaggregated by geography, based on our customers’ billing addresses: Revenue - Schedule of Disaggregation of Revenue by Geographic Areas Net sales by region Unaudited 6 months ended June 30, USD'000 2024 2023 Secure Microcontrollers Segment North America North America 2,950 7,956 Europe, Middle East and Africa Europe, Middle East and Africa 589 1,388 Asia Pacific Asia Pacific 333 812 Total Secure Microcontrollers segment revenue 3,872 10,156 All Other Segment North America 108 418 Europe, Middle East and Africa 291 3,033 Asia Pacific 557 1,144 Total All Other segment revenue 956 4,595 Total net sales 4,828 14,751
Revenue - Schedule of Contract Assets, Deferred Revenue and Contract Liability	Our contract assets, deferred revenue and contract liability consist of: Revenue - Schedule of Contract Assets, Deferred Revenue and Contract Liability As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Trade accounts receivable Trade accounts receivable - Secure Microcontrollers Segment Secure Microcontrollers Segment 1,255 3,553 Trade accounts receivable - All Other Segment All Other Segment 310 1,550 Total trade accounts receivable 1,565 5,103 Customer contract liabilities Customer contract liabilities - current 28 125 Total customer contract liabilities 28 125 Deferred revenue Deferred revenue - Secure Microcontrollers Segment 2 - Total deferred revenue 2 -

Stock-based compensation (Table

Stock-based compensation (Tables)	6 Months Ended
	Jun. 30, 2024
Compensation Related Costs [Abstract]
Stock-Based Compensation - Schedule of Share Based Payment Award, Stock Options, Valuation Assumptions	The following assumptions were used to calculate the compensation expense and the calculated fair value of stock options granted: Stock-Based Compensation - Schedule of Share Based Payment Award, Stock Options, Valuation Assumptions Assumption June 30, 2024 June 30, 2023 Dividend yield None None Risk-free interest rate used (average) 1.00 1.00 Expected market price volatility 65.31 73.19 Average remaining expected life of stock options on F Shares (years) 5.69 6.69 Average remaining expected life of stock options on Ordinary Shares (years) 6.91 n/a
Stock-Based Compensation - Schedule of Share Based Compensation Stock Options Activity	The following tables illustrate the development of the Group’s non-vested options in F Shares and Ordinary Shares for the six months ended June 30, 2024. Stock-Based Compensation - Schedule of Share Based Compensation Stock Options Activity Non-vested options on F Shares Number of F Shares under options Weighted-average grant date fair value (USD) Non-vested options as at December 31, 2022 — — Granted 77 6.39 Vested 77 6.39 Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2023 — — Granted - - Vested - - Non-vested forfeited or cancelled - - Non-vested options as at June 30, 2024 — — Non-vested options on Ordinary Shares Number of Ordinary Shares under options Weighted-average grant date fair value (USD) Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2022 — — Granted - - Vested - - Non-vested forfeited or cancelled - - Non-vested options as at December 31, 2023 — — Granted 36,937 1.14 Vested 36,937 1.14 Non-vested forfeited or cancelled - - Non-vested options as at June 30, 2024 — — The following tables summarize the Group’s stock option activity for the six months ended June 30, 2024. Options on F Shares SEAL F Shares under options Weighted-average exercise price Weighted average remaining contractual term Aggregate intrinsic value Outstanding as at December 31, 2022 — — — — Of which vested - - - - Granted 77 0.05 - - Outstanding as at December 31, 2023 77 0.05 6.19 19 Of which vested 77 0.05 6.19 19 Granted - - - - Outstanding as at June 30, 2024 77 0.05 5.69 9 Of which vested 77 0.05 5.69 9 Options on Ordinary Shares SEAL Ordinary Shares under options Weighted-average exercise price Weighted average remaining contractual term Aggregate intrinsic value Outstanding as at December 31, 2022 — — — — Of which vested - - - - Granted - - - - Outstanding as at December 31, 2023 — — — — Of which vested - - - - Granted 36,937 0.01 - - Outstanding as at June 30, 2024 36,937 0.01 6.91 29,804 Of which vested 36,937 0.01 6.91 29,804
Stock-Based Compensation - Schedule of Compensation Expense	Summary of stock-based compensation expenses Stock-Based Compensation - Schedule of Compensation Expense Stock-based compensation expenses Unaudited 6 months ended June 30, USD 2024 2023 In relation to Employee Stock Option Plans (ESOP) 42 — In relation to non-ESOP Option Agreements — — Total 42 — Stock-based compensation expenses are recorded under the following expense categories in the income statement. Stock-based compensation expenses Unaudited 6 months ended June 30, USD'000 2024 2023 Research & development expenses — — Selling & marketing expenses — — General & administrative expenses 42 — Total 42 —

Non-operating income (Tables)

Non-operating income (Tables)	6 Months Ended
	Jun. 30, 2024
Other Income and Expenses [Abstract]
Non-Operating Income - Schedule of Non-Operating Income	Non-operating income consisted of the following: Non-Operating Income - Schedule of Non-Operating Income Unaudited 6 months ended June 30, USD'000 2024 2023 Foreign exchange gain 204 125 Interest income 254 55 Other 7 - Total non-operating income 465 180

Non-operating expenses (Tables)

Non-operating expenses (Tables)	6 Months Ended
	Jun. 30, 2024
Non-operating Expenses
Non-Operating Expenses - Schedule of Non-Operating Expenses	Non-operating expenses consisted of the following: Non-Operating Expenses - Schedule of Non-Operating Expenses Unaudited 6 months ended June 30, USD'000 2024 2023 Foreign exchange losses 3 253 Financial charges 2 2 Interest expense 361 52 Other 6 6 Total non-operating expenses 372 313

Income taxes (Tables)

Income taxes (Tables)	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes - Schedule of Deferred Tax Assets and Liabilities	The Group’s deferred tax assets and liabilities consist of the following: Income Taxes - Schedule of Deferred Tax Assets and Liabilities Deferred income tax assets/(liabilities) As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Switzerland Switzerland - - Foreign Foreign 1,775 3,077 Deferred income tax assets / (liabilities) 1,775 3,077 Deferred tax assets and liabilities As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Defined benefit accrual (3) (3) Tax loss carryforwards 6,710 4,468 Add back loss carryforwards used for the debt remission 803 828 Valuation allowance (5,735) (2,216) Deferred tax assets / (liabilities) 1,775 3,077

Segment reporting (Tables)

Segment reporting (Tables)	6 Months Ended
	Jun. 30, 2024
Segment Reporting [Abstract]
Segment Reporting - Schedule of Segment Reporting Information by Segment	Unaudited 6 months ended June 30, 2024 2023 Secure Microcontrollers All Other Total Secure Microcontrollers All Other Total Revenues from external customers 3,872 956 4,828 10,156 4,595 14,751 Intersegment revenues - 1,084 1,084 - 231 231 Interest revenue 204 50 254 38 17 55 Interest expense 290 71 361 36 16 52 Depreciation and amortization 241 60 301 190 86 275 Segment income /(loss) before income taxes (4,180) (5,222) (9,402) 718 (1,262) (544) Profit / (loss) from intersegment sales - 52 52 - 11 11 Income tax recovery / (expense) (1,046) (258) (1,304) - (320) (320) Segment assets 12,732 23,938 36,670 13,279 7,864 24,148
Segment Reporting - Schedule of Reconciliation of Revenue	Unaudited 6 months ended June 30, 2024 2023 USD'000 USD'000 Revenue reconciliation Total revenue for reportable segment 5,912 14,982 Elimination of intersegment revenue Intersegment (1,084) (231) Total consolidated revenue 4,828 14,751 Loss reconciliation Total loss from reportable segments (9,402) (544) Elimination of intersegment profits (52) (11) Loss before income taxes (9,454) (555)
Segment Reporting - Schedule of Reconciliation of Assets	As at June 30, 2024 2023 USD'000 USD'000 Asset reconciliation Total assets from reportable segments Reportable Segments 36,670 24,148 Elimination of intersegment receivables Intersegment (4,436) (71) Consolidated total assets 32,234 24,077
Segment Reporting - Schedule of Revenue and Property, Plant and Equipment by Geography	The following tables summarize geographic information for net sales based on the billing address of the customer, and for property, plant and equipment. Segment Reporting - Schedule of Revenue and Property, Plant and Equipment by Geography Net sales by region Unaudited 6 months ended June 30, USD'000 2024 2023 North America 3,058 8,374 Europe, Middle East & Africa 880 4,421 Asia Pacific 890 1,956 Total net sales 4,828 14,751 Property, plant and equipment, net of depreciation, by region As at June 30, As at December 31, USD'000 2024 (unaudited) 2023 Europe, Middle East & Africa 3,013 3,230 Total Property, plant and equipment, net of depreciation 3,013 3,230

Loss per share (Tables)

Loss per share (Tables)	6 Months Ended
	Jun. 30, 2024
Earnings per Ordinary Share (USD)
Earnings/(Loss) Per Share - Schedule of Earnings Per Shares, Basic and Diluted	The computation of basic and diluted net earnings / (loss) per share for the Group is as follows: Earnings/(Loss) Per Share - Schedule of Earnings Per Shares, Basic and Diluted Unaudited 6 months ended June 30, Earnings / (loss) per share 2024 2023 Net loss (USD'000) (10,758) (875) Effect of potentially dilutive instruments on net earnings (USD'000) n/a n/a Net loss after effect of potentially dilutive instruments (USD'000) (10,758) (875) Ordinary Shares used in net earnings / (loss) per share computation: Weighted average shares outstanding - basic 21,199,165 7,501,500 Effect of potentially dilutive equivalent shares n/a n/a Weighted average shares outstanding - diluted 21,199,165 7,501,500 Net earnings / (loss) per Ordinary Share Basic weighted average loss per share (USD) (0.37) (0.06) Diluted weighted average loss per share (USD) (0.37) (0.06) F Shares used in net earnings / (loss) per share computation: Weighted average shares outstanding - basic 1,499,700 1,499,700 Effect of potentially dilutive equivalent shares n/a n/a Weighted average shares outstanding - diluted 1,499,700 1,499,700 Net earnings / (loss) per F Share Basic weighted average loss per share (USD) (1.87) (0.29) Diluted weighted average loss per share (USD) (1.87) (0.29)

Related parties disclosure (Tab

Related parties disclosure (Tables)	6 Months Ended
	Jun. 30, 2024
Related Party Transactions [Abstract]
Related Parties Disclosure - Schedule of Subsidiary/Parent Ownership Interest	As at June 30, 2024, the condensed consolidated financial statements of the Group include the entities listed in the following table: Related Parties Disclosure - Schedule of Subsidiary/Parent Ownership Interest Group Company Name Country of incorporation Year of incorporation Share Capital % ownership % ownership Nature of business SEALSQ France SAS France 2010 EUR 1,473,162 100.0 100.0 Chip manufacturing, sales & distribution WISeKey IoT Japan KK Japan 2017 JPY 1,000,000 100.0 100.0 Sales & distribution WISeKey IoT Taiwan Taiwan 2017 TWD 100,000 100.0 100.0 Sales & distribution
Related Parties Disclosure - Schedule of Related Party Transactions	Receivables as at Payables as at Net expenses to Net income from Related Parties June 30, December 31, June 30, December 31, in the 6 months ended June 30, in the 6 months ended June 30, (in USD'000) 2024 (unaudited) 2023 2024 (unaudited) 2023 2024 (unaudited) 2023 (unaudited) 2024 (unaudited) 2023 (unaudited) 1 John O’Hara - - 158 - - - - - 2 Ruma Bose - - 33 28 28 - - - 3 Cristina Dolan - - 5 - 12 - - - 4 David Fergusson - - - - 9 - - - 5 Danil Kerimi - - 22 8 44 - - - 6 Eric Pellaton - - 5 - 13 - - - 7 WISeKey International Holding AG - - 4,643 7,100 2,066 1,898 - - 8 WISeKey SA - - 551 - 510 - - - 9 WISeKey USA Inc - - - 981 - 492 - - 10 WISeKey Semiconductors GmbH - - 849 881 84 81 - - 11 WISeCoin AG - - 3,417 3,389 37 37 - - Total - - 9,683 12,387 2,803 2,508 - -

Future operations and going c_2

Future operations and going concern (Details Narrative) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Operating income/(loss)	$ (8,890)	$ (279)
Working capital	$ 18,800

Concentration of Credit Risks -

Concentration of Credit Risks - Schedule of Concentration of Risk by Risk Factor (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Multinational Electronics Contract Manufacturing Company | Revenue
Concentration Risk [Line Items]
Concentration risk	4%	22%
Multinational Electronics Contract Manufacturing Company | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk			15%
Multinational Telecommunication and Hardware Manufacturing Company | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk			12%
International Digital Security Company | Revenue
Concentration Risk [Line Items]
Concentration risk	1%	12%
International Software Services Provider | Revenue
Concentration Risk [Line Items]
Concentration risk	1%	5%
International Software Services Provider | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk			14%
International Computer and Hardware Manufacturer | Revenue
Concentration Risk [Line Items]
Concentration risk	22%	3%
International Computer and Hardware Manufacturer | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk	65%		12%
International Equipment and Software Manufacturer | Revenue
Concentration Risk [Line Items]
Concentration risk		3%
International Equipment and Software Manufacturer | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk			19%
International Electronic Components Manufacturer | Revenue
Concentration Risk [Line Items]
Concentration risk	12%	8%

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, carrying amount	$ 32,234	$ 27,935	$ 24,077
Liabilities, carrying amount	27,010	22,904
Level 3 | Accounts Payable
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, carrying amount	6,904	6,963
Liabilities, fair value	6,904	6,963
Level 3 | Indebtedness to Related Parties, Current
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, carrying amount		1,278
Liabilities, fair value		1,278
Level 3 | Bonds, Mortgages and Other Long-Term Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, carrying amount	1,734	1,654
Liabilities, fair value	1,734	1,654
Level 3 | Convertible Note Payable, Noncurrent
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, carrying amount	9,313	1,519
Liabilities, fair value	10,413	1,846
Level 3 | Indebtedness to Related Parties, Noncurrent
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, carrying amount	7,478	9,695
Liabilities, fair value	7,478	9,695
Receivables | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, carrying amount	1,565	5,053
Assets, fair value	$ 1,565	$ 5,053

Accounts Receivable - Schedule

Accounts Receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Credit Loss [Abstract]
Trade accounts receivable	$ 1,634	$ 5,103
Allowance for credit losses	(69)	(50)
Total accounts receivable net of allowance for credit losses	$ 1,565	$ 5,053

Inventories - Schedule of Inven

Inventories - Schedule of Inventories, Current (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 635	$ 1,025
Work in progress	151	4,206
Finished goods	1,986
Total inventories	$ 2,772	$ 5,231

Government assistance (Details

Government assistance (Details Narrative) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Government Assistance [Abstract]
Research tax credits	$ 1,825,698	$ 1,718,248
Deferred research tax credits	$ 749,860	$ 1,075,838

Other Current Assets - Schedule

Other Current Assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Value-Added Tax Receivable	$ 390	$ 415
Advanced payment to suppliers	209	346
Deposits, current	5	4
Other current assets	21
Total other current assets	$ 625	$ 765

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 16,390	$ 16,306
Accumulated depreciation	(13,377)	(13,076)
Total property, plant and equipment from continuing operations, net	3,013	3,230
Depreciation charge for the year	301	273
Machinery & Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,309	13,275
Accumulated depreciation	(10,476)	(10,241)
Office Equipment and Furniture
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,321	2,321
Accumulated depreciation	(2,300)	(2,279)
Computer Equipment and Licenses
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	760	710
Accumulated depreciation	$ (601)	$ (556)

Property, plant and equipment_2

Property, plant and equipment (Details Narrative)	Jun. 30, 2024
Machinery & Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Machinery & Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Production Masks
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Production Tools
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Licenses
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Software
Property, Plant and Equipment [Line Items]
Estimated useful lives	1 year

Intangible Assets - Schedule of

Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jun. 30, 2024
Finite-Lived Intangible Assets [Line Items]
Total intangible assets gross	$ 4,903	$ 4,903
Accumulated amortization	(4,903)	(4,903)
Amortization charge for the 6 months ended June 30,	1
Patents
Finite-Lived Intangible Assets [Line Items]
Total intangible assets gross	2,281	2,281
Accumulated amortization	(2,281)	(2,281)
License Agreements
Finite-Lived Intangible Assets [Line Items]
Total intangible assets gross	1,699	1,699
Accumulated amortization	(1,699)	(1,699)
Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Total intangible assets gross	923	923
Accumulated amortization	$ (923)	$ (923)

Intangible assets (Details Narr

Intangible assets (Details Narrative)	Jun. 30, 2024
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	5 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	10 years
License Agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	1 year
License Agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	3 years
Other Intangibles
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	5 years

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Costs (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Fixed rent expense	$ 171	$ 172
Short-term lease cost
Lease cost	171	172	$ 172
General & Administrative Expenses
Lease cost	$ 171	$ 172

Leases - Schedule of Cash and N

Leases - Schedule of Cash and Non-Cash Activities Associated with Leases (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 169		$ 314
Non-cash investing and financing activities:
Net lease cost	171	$ 172	172
Additions to ROU assets obtained from:
New operating lease liabilities	$ 62		$ 66

Leases - Schedule of Right-Of-U

Leases - Schedule of Right-Of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Right-of-use assets:
Total right-of-use assets	$ 1,181	$ 1,278
Lease liabilities:
Total lease liabilities	$ 1,109	$ 1,229

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Operating - 2024	$ 170
Total lease payments - 2024	170
Operating - 2025	332
Total lease payments - 2025	332
Operating - 2026	303
Total lease payments - 2026	303
Operating - 2027	298
Total lease payments - 2027	298
Operating - 2028 and beyond	163
Total lease payments - 2028 and beyond	163
Operating - Total future minimum operating lease payments	1,266
Total Lease Payments - Total future minimum lease payments	1,266
Operating - Less effects of discounting	(157)
Total Lease Payments - Less effects of discounting	(157)
Operating - Lease liabilities recognized	1,109	$ 1,229
Total Lease Payments - Lease liabilities recognized	1,109
Other Liabilities
Operating - Lease liabilities recognized	$ 1,109

Leases (Details Narrative)

Leases (Details Narrative)	Jun. 30, 2024
Leases [Abstract]
Weighted-average remaining lease term, operating leases	3 years 11 months 12 days
Weighted average discount rate, operating leases	5.43%

Accounts Payable - Schedule of

Accounts Payable - Schedule of Accounts Payable (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Trade creditors	$ 2,470	$ 3,299
Accounts payable to shareholders	1,982	1,378
Accounts payable to Board Members	224
Accounts payable to underwriters, promoters, and employees	812	1,150
Other accounts payable	1,416	1,136
Total accounts payable	$ 6,904	$ 6,963

Other Current Liabilities - Sch

Other Current Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Other tax payable	$ 6	$ 13
Customer contract liability, current	28	125
Total other current liabilities	$ 34	$ 138

Bonds, mortgages and other lo_2

Bonds, mortgages and other long-term debt (Details Narrative) - USD ($)

1 Months Ended

6 Months Ended

12 Months Ended

Jul. 12, 2023

Jul. 10, 2023

Mar. 31, 2024

Jan. 31, 2024

Jul. 31, 2023

Nov. 30, 2022

Jun. 30, 2024

Jun. 30, 2023

Dec. 31, 2023

Mar. 01, 2024

Jan. 11, 2024

Jan. 09, 2024

Jul. 11, 2023

Short-Term Debt [Line Items]

Amortization of debt discount

$ 557,000

$ 143,000

Convertible promissory note

9,313,000

$ 1,519,000

Conversion of debt, amount

10,725,000

Private Placement | L1 Capital Global Opportunities Master Fund

Short-Term Debt [Line Items]

Unamortized debt discount

1,009,178

Carrying value

5,101,129

Amortization of debt discount

$ 246,825

Private placement

$ 10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 30 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily volume weighted average price

Conversion of debt, shares issued

3,317,720

Unamortized debt discount

$ 998,871

Private Placement | L1 Capital Global Opportunities Master Fund | Third L1 Amendment

Short-Term Debt [Line Items]

Amortization of debt discount

$ 542,262

Private placement

$ 5,000,000

Convertible promissory note

5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 768,679 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Debt issue cost, legal expenses

$ 53,184

Commissions to placement agent

250,000

Additional closing fees

125,000

Equity instrument, fair value

$ 553,449

Date of grant, market price

$ 1.98

Fair value of debt

$ 4,549,701

Debt discount, debit

270,303

Debt to APIC

32,881

Total debt discount

$ 937,565

Private placement, available borrowings

5,000,000

Private Placement | L1 Capital Global Opportunities Master Fund | Second L1 Amendment

Short-Term Debt [Line Items]

Private placement

10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 2.5% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 5.5 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 93% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55

Private Placement | L1 Capital Global Opportunities Master Fund | Second Tranche Funded

Short-Term Debt [Line Items]

Amortization of debt discount

$ 668,882

Private placement

$ 5,000,000

Convertible promissory note

$ 5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 1,144,339 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Ordinary shares reserved for issuance

45,000,000

Debt issue cost, legal expenses

$ 70,279

Commissions to placement agent

250,000

Additional closing fees

200,000

Equity instrument, fair value

$ 709,490

Date of grant, market price

$ 1.60

Fair value of debt

$ 4,594,061

Debt discount, debit

277,433

Debt to APIC

42,846

Total debt discount

$ 1,146,315

Conversion of debt, amount

3,900,000

Private placement, available borrowings

1,100,000

Private Placement | L1 Capital Global Opportunities Master Fund | First L1 Amendment

Short-Term Debt [Line Items]

Private placement

$ 10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 4 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55

Private Placement | L1 Capital Global Opportunities Master Fund | First Tranche

Short-Term Debt [Line Items]

Unamortized debt discount

705,572

Amortization of debt discount

$ 563,112

210,290

Private placement

5,000,000

Convertible promissory note

$ 5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 122,908 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Ordinary shares reserved for issuance

8,000,000

Debt issue cost, legal expenses

$ 114,832

Commissions to placement agent

250,000

Additional closing fees

200,000

Equity instrument, fair value

$ 632,976

Date of grant, market price

$ 11.42

Fair value of debt

$ 4,987,363

Debt discount, debit

323,744

Debt to APIC

41,088

Total debt discount

$ 1,086,856

Conversion of debt, amount

1,000,000

$ 4,000,000

Conversion of debt, shares issued

3,940,630

Private Placement | Anson Investments Master Fund

Short-Term Debt [Line Items]

Unamortized debt discount

1,204,299

Amortization of debt discount

$ 200,923

Private placement

$ 10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) USD 30 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily VWAP of the Ordinary Shares during the ten trading days immediately preceding the notice of partial or full conversion of the Note, with a floor price of USD 2.50. The covenants include the requirement for the Group to maintain a minimum cash balance of USD 4 million and to ensure that indebtedness of the Group does not exceed 15% of the average market capitalization

Conversion of debt, shares issued

3,970,104

Private Placement | Anson Investments Master Fund | Second Anson Amendment

Short-Term Debt [Line Items]

Private placement

$ 10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 2.5% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 5.5 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 93% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55

Private Placement | Anson Investments Master Fund | First Anson Amendment

Short-Term Debt [Line Items]

Private placement

$ 10,000,000

Private placement, description of transaction

divided into two equal tranches, in the form of Senior Unsecured Original Issue 4% Discount Convertible Promissory Notes. The Notes shall have a 24-month maturity and bear interest at a rate of 4% per annum, subject to adjustment. The Notes will be convertible into Ordinary Shares of SEALSQ, partially or in full, at an initial conversion price equal to the lesser of (i) a fixed conversion price of USD 4 per Ordinary Share, which, on the six-month anniversary of the tranche closing date, may reset at 130% of the daily VWAP of the Ordinary Shares for the trading day immediately prior to the reset date and (ii) 92% of the lowest daily volume VWAP of the Ordinary Shares during the ten trading days immediately preceding the conversion notice of the Note, with a floor price of USD 0.55

Private Placement | Anson Investments Master Fund | Third L1 Amendment

Short-Term Debt [Line Items]

Unamortized debt discount

$ 787,720

Carrying value

4,212,280

Amortization of debt discount

$ 542,262

Convertible promissory note

$ 5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 768,679 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Debt issue cost, legal expenses

$ 38,184

Commissions to placement agent

250,000

Additional closing fees

125,000

Equity instrument, fair value

$ 553,449

Date of grant, market price

$ 1.98

Fair value of debt

$ 4,549,701

Debt discount, debit

256,930

Debt to APIC

31,254

Total debt discount

924,192

Private placement, available borrowings

5,000,000

Proceeds from issuance of private placement

$ 5,000,000

Private Placement | Anson Investments Master Fund | Second Tranche Funded

Short-Term Debt [Line Items]

Amortization of debt discount

$ 668,868

Convertible promissory note

$ 5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 1,144,339 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Ordinary shares reserved for issuance

45,000,000

Debt issue cost, legal expenses

$ 55,279

Commissions to placement agent

250,000

Additional closing fees

200,000

Equity instrument, fair value

$ 709,490

Date of grant, market price

$ 1.60

Fair value of debt

$ 4,594,171

Debt discount, debit

264,441

Debt to APIC

40,838

Total debt discount

1,133,309

Conversion of debt, amount

5,000,000

Proceeds from issuance of private placement

$ 5,000,000

Private Placement | Anson Investments Master Fund | First Tranche

Short-Term Debt [Line Items]

Unamortized debt discount

$ 708,062

Amortization of debt discount

$ 563,112

198,984

Convertible promissory note

$ 5,000,000

Convertible promissory note, additional information

convertible into SEALSQ’s Ordinary Shares, and (ii) 122,908 warrants on the Ordinary Shares of SEALSQ with a 5-year maturity

Ordinary shares reserved for issuance

8,000,000

Debt issue cost, legal expenses

$ 64,832

Commissions to placement agent

250,000

Additional closing fees

200,000

Equity instrument, fair value

$ 632,976

Date of grant, market price

$ 11.42

Fair value of debt

$ 4,987,363

Debt discount, debit

279,375

Debt to APIC

35,457

Total debt discount

1,042,487

Conversion of debt, amount

825,000

$ 4,175,000

Conversion of debt, shares issued

3,996,493

Proceeds from issuance of private placement

$ 5,000,000

New ordinary shares issued

8,184

Total issue of ordinary shares

4,004,677

Production Capacity Investment Loan Agreement

Short-Term Debt [Line Items]

Proceeds from loan agreement

$ 2,000,000

Unamortized debt discount

$ 511,128

266,044

Note payable

2,000,000

Carrying value

$ 1,733,956

Amortization of debt discount

$ 80,160

Indebtedness to related parti_2

Indebtedness to related parties (Details Narrative)				1 Months Ended												6 Months Ended		12 Months Ended
	Dec. 15, 2022 USD ($) shares	Dec. 15, 2022 EUR (€) shares	Nov. 12, 2020 USD ($)	Dec. 20, 2023 USD ($)	Dec. 20, 2023 EUR (€)	Jan. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 30, 2022	Aug. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 28, 2021 USD ($)	Nov. 30, 2020	Oct. 31, 2019 USD ($)	Apr. 30, 2019 EUR (€)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2024 EUR (€)	Apr. 01, 2021 USD ($)	Apr. 01, 2021 EUR (€)
Related Party Transaction [Line Items]
Debt conversion, converted amount																$ 10,725,000
Amortization of debt discount																557,000	143,000
Amortization of debt discount																(100,000)
Interest expense																557,000	$ 143,000
the "Group"
Related Party Transaction [Line Items]
Proceeds from related party							$ 283,754		$ 381,879	$ 444,542	$ 1,910,754	$ 1,463,664
Interest rate							3%		3%	3%	3%	3%
Debt remission amount																3,211,668			€ 3,000,000	$ 5,871,714	€ 5,000,000
Debt write off				$ 2,191,282	€ 2,000,000
Maturity date							Dec. 31, 2024		Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Long term debt							$ 1,198,746									7,477,594
Unamortized debt discount							35,340
Carrying value of current debt							1,163,406											$ 1,277,806
Additional loan amount							208,751
Noncurrent debt																		9,695,576
Current debt																		1,407,497
Interest payable																		129,691
Interest expense																		114,400
Accounts payable balance																1,981,933		$ 1,377,871
Repayment of debt																1,449,911
Unamortized debt																129,691
Amortization of debt discount																29,406
Amortization of debt discount																100,285
Interest expense																$ 44,943
WISeKey International Holding AG
Related Party Transaction [Line Items]
Lines of credit extended to shareholder loans			$ 4,000,000
Line of credit description													to be drawn down over six months from the date of the commitment, in instalments of between USD 1 million and USD 1.5 million
Line of credit, interest rate			3%			2.50%
Debt conversion, converted amount	$ 7,348,397	€ 7,000,000
Debt conversion, shares issued | shares	175,000	175,000
Share capital							$ 183,710
Recapitalization by WISeKey International Holding Ltd	$ 7,164,687
Unamortized debt discount						$ 208,751
Line of credit						$ 5,000,000
Line of credit, maturity date						Dec. 31, 2024
Proceeds from line of credit						$ 1,407,497
Line of credit						$ 1,163,406
Line of credit, interest rate						12.30%
Accrued interest						$ 244,091
Extinguishment of unamortized debt discount						$ 35,340
WiseCoin AG
Related Party Transaction [Line Items]
Proceeds from related party														$ 2,750,000	€ 250,000
Interest rate								2.50%						3%	300%

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Net Service cost	$ 18	$ 19
Interest cost / (credit)	6	7
Total Net Periodic Benefit Cost / (credit)	24	26
Total Cashflow	$ (19)	$ (13)

Employee benefit plans (Details

Employee benefit plans (Details Narrative)	Jun. 30, 2024 USD ($)
Retirement Benefits [Abstract]
Expected employer contribution	$ 38,000

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Stock by Class (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Par value per share	$ 0.01	$ 0.01
Total number of authorized shares	200,000,000	200,000,000
Total number of fully paid-in issued shares	22,734,630	15,446,807
Total number of fully paid-in outstanding shares	22,734,630	15,446,807
Total share capital	$ 302,331,000	$ 229,453,000
F Shares
Accumulated Other Comprehensive Income (Loss) [Line Items]
Par value per share	$ 0.05	$ 0.05
Share capital (in USD)	$ 74,985	$ 74,985
Total number of authorized shares	10,000,000	10,000,000
Total number of fully paid-in issued shares	1,499,700	1,499,700
Total number of fully paid-in outstanding shares	1,499,700	1,499,700
Common Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Par value per share	$ 0.01	$ 0.01
Share capital (in USD)	$ 227,346	$ 154,468
Total number of authorized shares	200,000,000	200,000,000
Total number of fully paid-in issued shares	22,734,630	15,446,807
Total number of fully paid-in outstanding shares	22,734,630	15,446,807

Revenue - Schedule of Disaggreg

Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,828	$ 14,751
At One Point in Time
Disaggregation of Revenue [Line Items]
Total revenue	4,828	14,751
Secure Microcontrollers
Disaggregation of Revenue [Line Items]
Total revenue	3,872	10,156
Secure Microcontrollers | Secure Chips
Disaggregation of Revenue [Line Items]
Total revenue	3,872	10,156
Secure Microcontrollers | At One Point in Time
Disaggregation of Revenue [Line Items]
Total revenue	3,872	10,156
Secure Microcontrollers | At One Point in Time | Secure Chips
Disaggregation of Revenue [Line Items]
Total revenue	3,872	10,156
All Others
Disaggregation of Revenue [Line Items]
Total revenue	956	4,595
All Others | Secure Chips
Disaggregation of Revenue [Line Items]
Total revenue	956	4,595
All Others | At One Point in Time
Disaggregation of Revenue [Line Items]
Total revenue	956	4,595
All Others | At One Point in Time | Secure Chips
Disaggregation of Revenue [Line Items]
Total revenue	$ 956	$ 4,595

Revenue - Schedule of Disaggr_2

Revenue - Schedule of Disaggregation of Revenue by Geographic Areas (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 4,828	$ 14,751
North America
Disaggregation of Revenue [Line Items]
Net sales	3,058	8,374
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales	880	4,421
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	890	1,956
Secure Microcontrollers
Disaggregation of Revenue [Line Items]
Net sales	3,872	10,156
Secure Microcontrollers | North America
Disaggregation of Revenue [Line Items]
Net sales	2,950	7,956
Secure Microcontrollers | Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales	589	1,388
Secure Microcontrollers | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	333	812
All Others
Disaggregation of Revenue [Line Items]
Net sales	956	4,595
All Others | North America
Disaggregation of Revenue [Line Items]
Net sales	108	418
All Others | Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales	291	3,033
All Others | Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	$ 557	$ 1,144

Revenue - Schedule of Contract

Revenue - Schedule of Contract Assets, Deferred Revenue and Contract Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Trade accounts receivable
Total trade accounts receivable	$ 1,565	$ 5,103
Customer contract liabilities
Customer contract liabilities - current	28	125
Total customer contract liabilities	28	125
Deferred revenue
Total deferred revenue	2
Secure Microcontrollers Segment
Trade accounts receivable
Total trade accounts receivable	1,255	3,553
Deferred revenue
Total deferred revenue	2
All Other Segment
Trade accounts receivable
Total trade accounts receivable	$ 310	$ 1,550

Revenue (Details Narrative)

Revenue (Details Narrative)	Jun. 30, 2024 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 1,799

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Share Based Payment Award, Stock Options, Valuation Assumptions (Details)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Risk-free interest rate used (average)	1%	1%
Expected market price volatility	65.31%	73.19%
Common Stock
Average remaining expected life of stock options	6 years 10 months 28 days
F Shares
Average remaining expected life of stock options	5 years 8 months 8 days	6 years 8 months 8 days

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Share Based Compensation Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Common Stock
Non-vested Options outstanding	0	0
Weighted-average grant date fair value, per share	$ 0	$ 0
Granted	36,937
Weighted-average grant date fair value, granted	$ 1.14
Vested	36,937
Weighted-average grant date fair value, vested	$ 1.14
Non-vested Options outstanding	0	0
Weighted-average grant date fair value, per share	$ 0	$ 0
Options outstanding	0	0
Weighted-average exercise price, per share
Weighted-average exercise price, granted	$ 0.01
Weighted average remaining contractual term	6 years 10 months 28 days
Weighted average remaining contractual term, vested	6 years 10 months 28 days
Options outstanding	36,937	0
Weighted-average exercise price, per share	$ 0.01
Aggregate intrinsic value, outstanding	$ 29,804
Weighted-average exercise price, vested, per share	$ 0.01
Aggregate intrinsic value, vested	$ 29,804
Class F Shares
Non-vested Options outstanding	0	0
Weighted-average grant date fair value, per share	$ 0	$ 0
Granted		77
Weighted-average grant date fair value, granted		$ 6.39
Vested	77	77
Weighted-average grant date fair value, vested		$ 6.39
Non-vested Options outstanding	0	0
Weighted-average grant date fair value, per share	$ 0	$ 0
Options outstanding	77	0
Weighted-average exercise price, per share	$ 0.05
Weighted-average exercise price, granted		$ 0.05
Weighted average remaining contractual term	5 years 8 months 8 days	6 years 2 months 8 days
Aggregate intrinsic value, outstanding	$ 19
Weighted-average exercise price, vested, per share	$ 0.05
Weighted average remaining contractual term, vested	5 years 8 months 8 days	6 years 2 months 8 days
Aggregate intrinsic value, vested	$ 19
Options outstanding	77	77
Weighted-average exercise price, per share	$ 0.05	$ 0.05
Aggregate intrinsic value, outstanding	$ 9	$ 19
Weighted-average exercise price, vested, per share	$ 0.05	$ 0.05
Aggregate intrinsic value, vested	$ 9	$ 19

Stock-Based Compensation - Sc_3

Stock-Based Compensation - Schedule of Compensation Expense (Details) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Stock option plan expense	$ 42,095
Research & development expenses	2,393,000	$ 1,492,000
Selling & marketing expenses	2,653,000	2,441,000
General & administrative expenses	4,777,000	4,145,000
Class F Shares
Stock option plan expense	42,000
Research & development expenses
Selling & marketing expenses
General & administrative expenses	$ 42,000

Stock-based compensation (Detai

Stock-based compensation (Details Narrative) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Options granted, expense	$ 42,095
Common Stock
Options granted	36,937
Class F Shares
Options granted		77
Options granted, expense	$ 42,000

Non-Operating Income - Schedule

Non-Operating Income - Schedule of Non-Operating Income (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Other Income and Expenses [Abstract]
Foreign exchange gain	$ 204	$ 125
Interest income	254	55
Other	7
Total non-operating income	$ 465	$ 180

Non-Operating Expenses - Schedu

Non-Operating Expenses - Schedule of Non-Operating Expenses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Non-operating Expenses
Foreign exchange losses	$ 3	$ 253
Financial charges	2	2
Interest expense	361	52
Other	6	6
Total non-operating expenses	$ 372	$ 313

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]
Deferred tax assets/(liabilities)	$ 1,775	$ 3,077
Defined benefit accrual	(3)	(3)
Tax loss carryforwards	6,710	4,468
Add back loss carryforwards used for the debt remission	803	828
Valuation allowance	(5,735)	(2,216)
Switzerland
Effective Income Tax Rate Reconciliation [Line Items]
Deferred tax assets/(liabilities)
Foreign
Effective Income Tax Rate Reconciliation [Line Items]
Deferred tax assets/(liabilities)	$ 1,775	$ 3,077

Segment Reporting - Schedule of

Segment Reporting - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Revenues from external customers	$ 4,828	$ 14,751
Income tax recovery / (expense)	(1,304)	(320)
Segment assets	36,670	24,148
Secure Microcontrollers
Segment Reporting Information [Line Items]
Revenues from external customers	3,872	10,156
Intersegment revenues
Interest revenue	204	38
Interest expense	290	36
Depreciation and amortization	241	190
Segment income /(loss) before income taxes	(4,180)	718
Profit / (loss) from intersegment sales
Income tax recovery / (expense)	(1,046)
Segment assets	12,732	13,279
All Others
Segment Reporting Information [Line Items]
Revenues from external customers	956	4,595
Intersegment revenues	1,084	231
Interest revenue	50	17
Interest expense	71	16
Depreciation and amortization	60	86
Segment income /(loss) before income taxes	(5,222)	(1,262)
Profit / (loss) from intersegment sales	52	11
Income tax recovery / (expense)	(258)	(320)
Segment assets	23,938	7,864
Total Segment Assets
Segment Reporting Information [Line Items]
Revenues from external customers	4,828	14,751
Intersegment revenues	1,084	231
Interest revenue	254	55
Interest expense	361	52
Depreciation and amortization	301	275
Segment income /(loss) before income taxes	(9,402)	(544)
Profit / (loss) from intersegment sales	52	11
Income tax recovery / (expense)	$ (1,304)	$ (320)

Segment Reporting - Schedule _2

Segment Reporting - Schedule of Reconciliation of Revenue (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 4,828	$ 14,751
Loss before income taxes	(9,454)	(555)
Reportable Segments
Segment Reporting Information [Line Items]
Net sales	5,912	14,982
Loss before income taxes	(9,402)	(544)
Intersegment
Segment Reporting Information [Line Items]
Net sales	(1,084)	(231)
Loss before income taxes	$ (52)	$ (11)

Segment Reporting - Schedule _3

Segment Reporting - Schedule of Reconciliation of Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Segment Reporting Information [Line Items]
Consolidated total assets	$ 32,234	$ 27,935	$ 24,077
Reportable Segments
Segment Reporting Information [Line Items]
Consolidated total assets	36,670		24,148
Intersegment
Segment Reporting Information [Line Items]
Elimination of intersegment receivables Intersegment	$ (4,436)		$ (71)

Segment Reporting - Schedule _4

Segment Reporting - Schedule of Revenue and Property, Plant and Equipment by Geography (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 4,828	$ 14,751
Property, plant and equipment, net of depreciation	3,013		$ 3,230
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	3,058	8,374
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	880	4,421
Property, plant and equipment, net of depreciation	3,013		$ 3,230
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 890	$ 1,956

Earnings_(Loss) Per Share - Sch

Earnings/(Loss) Per Share - Schedule of Earnings Per Shares, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss (USD'000)	$ (10,758)	$ (875)
Ordinary Shares used in net earnings / (loss) per share computation:
Weighted average shares outstanding - basic	21,199,165	7,501,500
Weighted average shares outstanding - diluted	21,199,165	7,501,500
Net earnings / (loss) per Ordinary Share
Basic weighted average loss per share (USD)	$ (0.37)	$ (0.06)
Diluted weighted average loss per share (USD)	$ (0.37)	$ (0.06)
F Shares
Ordinary Shares used in net earnings / (loss) per share computation:
Weighted average shares outstanding - basic	1,499,700	1,499,700
Weighted average shares outstanding - diluted	1,499,700	1,499,700
Net earnings / (loss) per Ordinary Share
Basic weighted average loss per share (USD)	$ (1.87)	$ (0.29)
Diluted weighted average loss per share (USD)	$ (1.87)	$ (0.29)

Related Parties Disclosure - Sc

Related Parties Disclosure - Schedule of Subsidiary/Parent Ownership Interest (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Sealsq France Sas [Member]
Related Party Transaction [Line Items]
Country of incorporation	France
Country of incorporation	2010
Share capital	$ 1,473,162
% ownership	100%	100%
Nature of business	Chip manufacturing, sales & distribution
WISeKey IoT Japan KK
Related Party Transaction [Line Items]
Country of incorporation	Japan
Country of incorporation	2017
Share capital	$ 1,000,000
% ownership	100%		100%
Nature of business	Sales & distribution
WISeKey IoT Taiwan
Related Party Transaction [Line Items]
Country of incorporation	Taiwan
Country of incorporation	2017
Share capital	$ 100,000
% ownership	100%		100%
Nature of business	Sales & distribution

Related Parties Disclosure - _2

Related Parties Disclosure - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Payables	$ 9,683		$ 12,387
Net expenses	2,803	$ 2,508
John O'Hara
Related Party Transaction [Line Items]
Payables	158
Ruma Bose
Related Party Transaction [Line Items]
Payables	33		28
Net expenses	28
Cristina Dolan
Related Party Transaction [Line Items]
Payables	5
Net expenses	12
David Fergusson
Related Party Transaction [Line Items]
Net expenses	9
Danil Kerimi
Related Party Transaction [Line Items]
Payables	22		8
Net expenses	44
Eric Pellaton
Related Party Transaction [Line Items]
Payables	5
Net expenses	13
WISeKey International Holding AG
Related Party Transaction [Line Items]
Payables	4,643		7,100
Net expenses	2,066	1,898
WISeKey SA
Related Party Transaction [Line Items]
Payables	551
Net expenses	510
WISeKey USA Inc.
Related Party Transaction [Line Items]
Payables			981
Net expenses		492
WISeKey Semiconductors GMBH
Related Party Transaction [Line Items]
Payables	849		881
Net expenses	84	81
WiseCoin AG
Related Party Transaction [Line Items]
Payables	3,417		$ 3,389
Net expenses	$ 37	$ 37

Subsequent events (Details Narr

Subsequent events (Details Narrative) - USD ($)	1 Months Ended	6 Months Ended
	Jul. 31, 2024	Jun. 30, 2024	Jun. 30, 2023
Subsequent Event [Line Items]
Conversion of debt, amount		$ 10,725,000
Private Placement | L1 Capital Global Opportunities Master Fund
Subsequent Event [Line Items]
Conversion of debt, shares issued		3,317,720
Private Placement | Anson Investments Master Fund
Subsequent Event [Line Items]
Conversion of debt, shares issued		3,970,104
Private Placement | Second Tranche Funded | L1 Capital Global Opportunities Master Fund
Subsequent Event [Line Items]
Conversion of debt, amount		$ 3,900,000
Private Placement | Second Tranche Funded | Anson Investments Master Fund
Subsequent Event [Line Items]
Conversion of debt, amount		$ 5,000,000
Subsequent Event | Private Placement | L1 Capital Global Opportunities Master Fund
Subsequent Event [Line Items]
Conversion of debt, shares issued	4,103,597
Subsequent Event | Private Placement | L1 Capital Global Opportunities Master Fund | Third L1 Amendment
Subsequent Event [Line Items]
Conversion of debt, amount	$ 450,000
Subsequent Event | Private Placement | Anson Investments Master Fund | Third L1 Amendment
Subsequent Event [Line Items]
Conversion of debt, amount	$ 450,000
Conversion of debt, shares issued	1,275,000
Subsequent Event | Private Placement | Second Tranche Funded | L1 Capital Global Opportunities Master Fund
Subsequent Event [Line Items]
Conversion of debt, amount	$ 1,100,000