WISeKey and SEALSQ Establish Quantisimo Corp. and Execute Nasdaq SPAC Listing Intent with GigCapital8

Cybersecurity firm WISeKey International Holding Ltd. and its semiconductor-focused subsidiary SEALSQ Corp. have announced the creation of a jointly owned special purpose vehicle, Quantisimo Corp. (Quantisimo). Concurrently, the newly formed entity has entered into a non-binding Letter of Intent (LOI) with GigCapital8 Corp., a publicly traded Private-to-Public Equity (PPE) special purpose acquisition company (SPAC). The transaction is structured to establish a Nasdaq-listed, trusted quantum technology platform focused on the consolidation, commercialization, and long-term scaling of post-quantum security assets and defense-adjacent hardware components.

SPAC Business Combination and Multi-Company Acquisition Strategy

The contemplated business combination between Quantisimo and GigCapital8 assigns the combined corporate entity an initial pre-money enterprise value of approximately $575 million. Under the operational guidance of WISeKey CEO Carlos Creus Moreira and GigCapital Global Founder Dr. Avi Katz, the primary corporate strategy is designed to execute a build-up consolidation program. The parties intend to scale the company's initial baseline valuation up to $2 billion by targeting and absorbing up to five additional innovative quantum companies. The structural transaction loop is currently projected to finalize regulatory reviews and close during the first quarter of 2027.

Pure-Play Investment Exposure and Asset Contributions

Quantisimo is architected to operate as a "Trusted Quantum Pure-Play" vehicle, providing public market investors with a direct, concentrated financial gateway into the evolving quantum economy. Unlike firms bounded by a single engineering method, the asset pool will consolidate internally developed architectures alongside intellectual property and strategic interests contributed from SEALSQ’s specialized SealQuantum.com portfolio. These technical contributions feature quantum-resistant cryptographic software models and post-quantum semiconductors designed to replace legacy public-key frameworks like RSA and Elliptic Curve Cryptography (ECC) across multi-factor authentication tokens, smart grid infrastructure, and IT network equipment.

Federal Macro Policy and Market Positioning

The strategic creation of the platform responds directly to changing macro policy parameters within the United States. The transaction documentation explicitly cites the federal executive order, "Ushering in the Next Frontier of Quantum Innovation," signed by President Donald J. Trump on Monday, June 22, 2026. This administrative policy mandates accelerated domestic development across quantum computing, secure networking nodes, localized sensing arrays, and sovereign supply chains. The resulting public-private partnership momentum is expected to directly expand global commercial procurement opportunities for Quantisimo’s military and enterprise-grade hardware components.

The registration statements, proxy filings, and detailed due diligence parameter sheets can be reviewed in the official WISeKey Press Room Announcement here, with further context on the administration's broader regulatory directives documented in the previous coverage here.

June 25, 2026