SEALSQ Corp (NASDAQ:LAES), the semiconductor and post-quantum cryptography subsidiary of WISeKey (NASDAQ:WKEY), announced Wednesday it has entered a non-binding Memorandum of Understanding (MOU) to potentially acquire a majority stake in QUOBLY, a Grenoble-based pioneer in silicon-based quantum computing.
The deal, structured in multiple stages, contemplates an initial minority investment followed by a path to majority ownership.
If finalized, the total investment is expected to reach approximately $200 million.
The transaction is anchored to SEALSQ’s dedicated Quantum Fund, a strategic vehicle designed to foster "sovereign" European quantum technologies that can compete with U.S. and Chinese giants.
QUOBLY, a spin-off from France’s prestigious CEA-Leti and CNRS research institutes, is a leader in silicon spin qubits.
Unlike competitors using exotic materials or superconducting loops, QUOBLY’s technology is compatible with standard CMOS (Complementary Metal-Oxide-Semiconductor) manufacturing.
This allows them to leverage existing semiconductor "mega-fabs" to scale toward the goal of a one-million-physical-qubit processor by 2031.
The move follows a strategic collaboration announced between the two firms in November 2025.