WISeKey doubles H1 revenue as post-quantum pipeline tops $225m
WISeKey International Holding has reported unaudited first-half 2026 revenue of approximately $11.4 million, up 116% from $5.3 million in the same period a year earlier. Gross profit rose 192% to $5.5 million, with gross margin expanding to 48% from 35%. The group ended June with approximately $495 million in cash and restricted cash and minimal debt, providing significant capital headroom for its ongoing investment programme.
The results were accompanied by a reaffirmation of full-year 2026 revenue growth guidance of 50% to 100% year on year. The company said it expects first revenues from its post-quantum semiconductor products in Q4 2026, with more substantial contributions anticipated in 2027.
Pipeline and products
WISeKey's semiconductor subsidiary SEALSQ Corp, listed separately on Nasdaq under the ticker LAES, reported a commercial pipeline exceeding $225 million through 2029. The company disclosed that more than $100 million of that figure relates to post-quantum projects, principally the QS7001 secure element and QVault TPM product lines. Management was explicit that these are estimates of potential opportunities rather than contracted backlog, and that conversion depends on customer qualification, certification timelines and technical integration.
On the certification front, the QS7001 received NIST SP 800-90B Entropy Source Validation, a prerequisite step toward FIPS 140-3 and Common Criteria EAL5+ certification. The VaultIC408 secure element separately received NIST FIPS 140-3 Level 3 certification. Engineering samples of the QVault TPM are now available to prospective customers. As of late September, more than 30 customers were actively evaluating or integrating QS7001 and QVault products.
SEALSQ also continued building its SEALQUANTUM Sovereign Vertical Stack, which the company has backed with up to $200 million of internal capital. Investments include the acquisition of Swiss photonics firm Miraex SA, a circa €15 million lead position in Quobly's €115 million Series A in France, and a total of $7 million in US quantum computing company EeroQ.
Market context and regulatory read-across
WISeKey's post-quantum pivot is timed to coincide with an accelerating regulatory mandate. In the United States, NIST finalised its first post-quantum cryptography standards in 2024, and federal agencies face a 2030 deadline to migrate to quantum-resistant algorithms. The EU is pursuing parallel obligations under its NIS2 directive and evolving ENISA guidance. This regulatory pressure is transforming post-quantum cryptography from a research concern into an active procurement category across government, financial services and critical infrastructure.
The competitive landscape is becoming crowded. Established semiconductor vendors including Infineon, NXP and STMicroelectronics are developing post-quantum secure elements, while pure-play startups and defence primes are competing for government certification programmes. WISeKey's differentiation rests on its long-standing OISTE cryptographic Root of Trust, now being extended into what it calls a Quantum RootKey, alongside the breadth of its vertical stack from chips through to satellite infrastructure. Whether that breadth proves a durable advantage or a management distraction will be a central question for investors as the group pursues four separate Nasdaq-listed entities simultaneously.
On the corporate structure side, shareholders approved the redomiciliation of the holding company from Switzerland to the British Virgin Islands. The new entity, WISeQey Corp, is expected to begin trading on Nasdaq under the ticker WQEY on or around 5 October 2026, with SIX remaining the primary listing. The group is also progressing proposed business combinations to bring WISeSat and Quantisimo to independent Nasdaq listings, targeting Q1 2027 for the Quantisimo transaction.
Carlos Moreira, founder, chairman and chief executive, said the group was "entering the most important commercialization phase in its history" and described a goal of building a group in which WISeKey, SEALSQ, WISeSat and Quantisimo "can each grow as focused businesses while remaining connected through one trusted infrastructure."
The operating loss widened to $40.9 million in H1 2026 from $27.3 million a year earlier, driven by higher research, selling and administrative costs as the group scales its commercialisation effort. Investors will watch whether SEALSQ's pipeline conversion and the QSOC satellite programme can narrow that gap as post-quantum products move into volume production.