SEALSQ and WISeKey form Quantisimo, sign SPAC merger letter of intent

SEALSQ Corp. (Nasdaq: LAES) and its parent WISeKey International Holding Ltd. (Nasdaq: WKEY) announced the formation of Quantisimo Corp., a special purpose vehicle, which has signed a non-binding letter of intent with GigCapital8 Corp. (Nasdaq: GIW), a special purpose acquisition company, to pursue a business combination.

The proposed transaction would create a Nasdaq-listed quantum technology platform with an initial pre-money enterprise value of approximately $575 million, subject to customary closing conditions. The parties stated their intention to grow that valuation to $2 billion through acquisitions of up to five additional quantum technology companies. The transaction is expected to close in the first quarter of 2027.

Quantisimo was established jointly by WISeKey and SEALSQ to build what the companies describe as a "Trusted Quantum Pure-Play platform." As part of the proposed deal, SEALSQ is expected to contribute selected assets and strategic interests from its SealQuantum.com portfolio, pending board approvals and completion of the business combination.

Carlos Creus Moreira, founder and CEO of WISeKey and chairman of SEALSQ, said: "Through Quantisimo, we are creating a Trusted Quantum Pure-Play platform designed to provide investors with direct exposure to this transformational opportunity while building the trusted infrastructure required for the quantum era."

Dr. Avi Katz, founder, executive chairman and CEO of GigCapital Global and GigCapital8, said Quantisimo "represents a unique opportunity to create a public company focused on the emerging quantum economy for the most advanced applications in both the military and commercial markets."

The parties said they plan to begin detailed due diligence immediately and execute definitive agreements in the coming months. The proposed transaction remains subject to definitive agreements, regulatory approvals, shareholder approvals, and financing arrangements. The companies noted there is no assurance that definitive agreements will be executed or that the transaction will be completed.

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