SEALSQ enters talks for potential $200M Quobly acquisition

SEALSQ Corp (NASDAQ: LAES), a subsidiary of WISeKey International Holding Ltd (SIX: WIHN, NASDAQ: WKEY), entered into a non-binding memorandum of understanding for exclusive negotiations to potentially acquire French quantum computing firm Quobly SAS.

The proposed multi-stage transaction would involve SEALSQ making an initial minority investment followed by a potential majority stake acquisition. The total investment would amount to approximately $200 million for a majority stake in Quobly, according to the company's statement.

The transaction remains subject to negotiation of definitive agreements, completion of due diligence, regulatory approvals, and other customary closing conditions. SEALSQ plans to fund the investment through its dedicated Quantum Fund designed to accelerate quantum technologies across Europe.

Quobly, founded in 2022 in Grenoble, France, develops silicon-based quantum processors using semiconductor manufacturing processes. The company builds on research from CEA-Leti and CNRS institutions. Quobly raised €19 million in 2023 and an additional €21 million in 2025 to advance its Q100T program toward fault-tolerant quantum computing.

The potential acquisition follows an existing strategic collaboration between SEALSQ and Quobly announced in November 2025. The companies aim to establish a platform for quantum-resistant security embedded in quantum computing infrastructure for defense, intelligence, financial services, and pharmaceutical sectors.

"This proposed transaction by SEALSQ marks an important step in QUOBLY's industrial journey," said Maud Vinet, co-founder and CEO of Quobly. Carlos Moreira, founder and CEO of WISeKey, stated the proposed acquisition aligns with the company's quantum roadmap to build sovereign quantum systems for Europe.

Quobly maintains a strategic partnership with STMicroelectronics to accelerate industrialization of its silicon quantum chips. The company was co-founded by Vinet and Tristan Meunier, experts in quantum physics and semiconductor quantum engineering.

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