The Swiss group WISeKeyvia its subsidiary SEALSQannounced the signing of a Memorandum of Understanding non-binding opening exclusive negotiations with the shareholders of Quoblywith a view to a strategic investment that could lead to a majority stake.
The planned operation, still subject to the usual conditions (audits, final agreements, regulatory and social authorizations), would involve a total investment of approximately 200 million dollarsin return for taking majority control of the Grenoble-based company.
An operation structured in several stages
According to the press release, the transaction would be organized in several phases, with a initial minority entryfollowed, potentially, by a increase in capital. This structuring reflects the still exploratory and capital-intensive nature of quantum hardware, as well as the industrial challenges associated with its scaling up.
The two companies were already linked by a strategic collaboration agreement announced in November 2025, aimed at bringing together quantum computing technologies and post-quantum security solutions.
Quobly, in parallel with a significant lifting project
At the time of the announcement, Quobly was currently preparing a fundraising of around 100 million eurosas indicated Maud Vinet on the set of FW.MEDIA. This fundraising was to support the continuation of its industrial and technological program around silicon quantum processors.
Founded in 2022 in Grenoble, Quobly develops quantum chips based on silicon, compatible with industrial microelectronics processes. The company draws on more than fifteen years of research work resulting from collaborations between CEA-Leti And CNRSand claims an approach oriented towards large-scale manufacturing.
Quobly lifted 19 million euros in 2023Then 21 million euros in 2025to finance in particular its program Q100Tpresented as a step towards fault-tolerant quantum computing. The startup also has a strategic partnership with STMicroelectronics to accelerate the industrialization of its technologies.
Integrated post-quantum security and quantum computing
SEALSQ includes this operation in its quantum strategy, supported by a Dedicated Quantum Fundwith the stated objective of developing “secure-by-design” quantum infrastructures. The joint project aims to natively integrate quantum-resistant security mechanisms directly at the hardware level, rather than as an additional software layer.
Targeted sectors include defense, intelligence, financial services, pharmaceuticals and other critical infrastructure.
