SEALSQ Corp reports developments in semiconductors, PKI and post-quantum technology hardware and software for secure digital infrastructure. Company updates commonly cover quantum-resistant cryptography, secure microcontrollers and secure elements, VaultIC products, the QS7001 Secure Element and QVault TPM families, and certification work tied to Common Criteria security standards.
News also follows operating results, registered offerings and other capital-structure actions, annual shareholder meetings and governance votes, and strategic investments through the SEALSQ Quantum Fund. Recurring business themes include smart-meter and connected-device security, provisioning services, industrial OEM relationships, IC'Alps integration, and collaborations around quantum computing and secure satellite communications.
WISeSat.Space (SAIQ) announced an in-orbit security-testing milestone following the successful deployment of partner FOSSA Systems’ FOSSASAT-2E27 satellite carrying SEALSQ (LAES) technology.
The spacecraft carries SEALSQ’s VaultIC secure elements. An extended collaboration covering up to six selected FOSSA missions plans repeatable testing and performance monitoring under space operating conditions, with selected experiments intended to run for six months. Testing of the next-generation QS7001 post-quantum secure element remains subject to technical readiness and integration. WISeSat participated in FOSSA’s June 2026 financing round. Its broader infrastructure roadmap is intended to support SEALSQ’s planned Quantum Spatial Orbital Cloud.
SEALSQ (LAES) reported preliminary unaudited revenue of $16.3 million for the nine months ended September 30, 2026, up year over year. Revenue rose 65% from $9.9 million, including approximately $3.8 million from IC'Alps. Cash, cash equivalents and restricted cash totaled approximately $463.0 million at September 30.
The company reaffirmed approximately $27 million to $36 million in FY 2026 revenue, representing approximately 50% to 100% growth, and expects Q4 revenue of $11 million to $20 million versus $8.4 million a year earlier. VaultIC408 achieved NIST FIPS 140-3 Level 3 validation. Product evaluations reached 42 prospective customers and partners, versus 30 at June 30. Management estimates a pipeline exceeding $200 million through 2029, including over $100 million in post-quantum projects, subject to conversion and technical risks. SEALSQ expects a larger post-quantum revenue contribution in 2027 and beyond.
SEALSQ (NASDAQ: LAES) will demonstrate two quantum-resistant chips and a custom-chip design concept at electronica in Munich on November 10–13, 2026. The company and subsidiary IC’Alps will exhibit in Hall C6, Booth 670.
The developments are VaultIC409, a secure chip built on the QS7001 platform; QVault TPM, a hardware security module; and QASIC, a custom-chip design offering developed by IC’Alps. QS7001 is undergoing Common Criteria EAL5+ security certification, while QVault is on a certification path covering FIPS 140-3 and TCG. SEALSQ plans VaultIC409 engineering samples for the second quarter of 2027. The event also includes live application demonstrations, a roundtable and a keynote.
SEALSQ (LAES) presented peer-reviewed research on ML-KEM key-generation attacks and countermeasures at LightSec on October 11, 2026, in Antalya, Turkey.
The paper, “Cross-information lattice attack on ML-KEM,” examines information leaked during the encoding step of a post-quantum method for establishing cryptographic keys. It demonstrates vulnerability to side-channel attacks, which exploit physical signals from computing operations, under realistic conditions and presents practical countermeasures. LightSec was an affiliated event of CHES 2026. SEALSQ links the research to its Quantum Shield QS7001 hardware, which is currently undergoing Common Criteria EAL5+ certification.
WISeSat.Space (SAIQ) outlined plans to integrate post-quantum cryptography, designed to resist quantum-computing attacks, into its next-generation satellite communications architecture. The strategy combines semiconductor technology from sister company SEALSQ (LAES) with digital identity and cryptographic key management. Following its October 2026 business combination and Nasdaq listing, WISeSat.Space closed a $10 million PIPE investment led by SEALSQ.
The company targets a 100-satellite sovereign constellation by 2033, subject to financing, technical development, regulatory approvals and launch availability. Its network and partner infrastructure provide access to nine active low-earth-orbit satellites. Planned deployments will advance the new architecture; not every currently accessible satellite carries the same post-quantum hardware. Compliance will be assessed for individual implementations.
SEALSQ (NASDAQ: LAES) unveiled VaultIC409, a secure element designed to help connected-device manufacturers prepare for security challenges posed by quantum computing. It is built on the QS7001 platform, which is undergoing Common Criteria EAL5+ security certification; certification is not yet complete. The device is designed to support post-quantum cryptography alongside established RSA and ECC algorithms, with dedicated hardware acceleration and an interface for exchanging larger cryptographic data sets.
SEALSQ plans a public demonstration at the Electronica trade show on November 10–13, 2026, followed by engineering samples in Q2 2027 for customer evaluation and integration activities. VaultIC409 targets the same markets as VaultIC408, including smart meters, industrial gateways and connected devices, allowing SEALSQ to offer it to existing customers planning future product generations.
WISeQey (WQEY) and SEALSQ's Quantisimo signed a definitive business combination agreement with GigCapital8 to pursue a Nasdaq listing through Quantisimo Holding.
At closing, WISeQey and SEALSQ will receive 66,610,000 shares, implying approximately $666.1 million of Quantisimo equity value at $10.00 per share; they are expected to retain majority ownership. Before closing, they will contribute interests in Miraex, SEALCOIN, WeCan Group and WISeSat.Space. Closing requires at least $15 million in available cash from GigCapital8's trust after redemptions, any private investment and a SEALSQ contribution. SEALSQ will receive additional shares at $10.00 for its contribution. Completion is expected in Q1 2027, subject to GigCapital8 shareholder approval, registration statement effectiveness and Nasdaq listing approval. PubCo shares are expected to trade as QSMO; WISeQey and SEALSQ face six-month post-closing lock-ups.
SEALSQ (NASDAQ: LAES) will showcase its security and quantum-computing stack at IQT Quantum + AI in New York on October 25–27, 2026. CEO Carlos Moreira will deliver the main keynote and join an executive panel on October 27.
The presentation includes a planned Quantum Spatial Orbital Cloud with WISeSat.Space (NASDAQ: SAIQ). The program plans deployment of up to 100 satellites through 2033, with an initial payload targeted for launch in the fourth quarter of 2026. SEALSQ intends to operate security and cloud services, while WISeSat.Space would operate satellites, payloads and the ground segment. SEALSQ also has a commercial agreement with Quobly to integrate security and digital identity services into next-generation silicon quantum platforms.
WISeSat.Space (Nasdaq: SAIQ) closed a $10 million private investment in public equity from SEALSQ (Nasdaq: LAES) on October 1, 2026.
The financing closed concurrently with the Business Combination at $10.79 per share, equal to the redemption price. Both companies are WISeQey subsidiaries. WISeSat plans to use the capital to advance satellite infrastructure and integrate post-quantum cryptography, security designed to address future quantum-computing threats, into satellite, ground and user systems. The collaboration is expected to support SEALSQ’s planned services using WISeSat’s satellite capacity.
Price protection may require up to 1,073,216 additional ordinary shares for SEALSQ if the volume-weighted average share price over the 10 consecutive trading days ending on the 60th calendar day after closing falls below the purchase price. SEALSQ is subject to customary lock-up restrictions.
SEALSQ (NASDAQ: LAES) led a $10 million private investment in public equity in WISeSat.Space that closed on October 1, 2026. The transaction closed alongside WISeSat.Space’s business combination, with a purchase price of $10.79 per share, equal to the redemption price.
Price protection may give SEALSQ additional WISeSat ordinary shares if a specified post-closing trading-price measure falls below the purchase price, capped at 1,073,216 additional shares. SEALSQ is subject to lock-up restrictions. Both companies are WISeQey subsidiaries and share CEO Carlos Moreira, making the investment and planned collaboration related party transactions.
SEALSQ expects the collaboration to support planned quantum and post-quantum services using WISeSat satellite capacity. The investment supports WISeSat’s planned satellite expansion and integration of cryptography designed to resist quantum-computing threats.