Quobly – Strategic-Technological Analysis of a European Quantum Computing Startup

Quobly (formerly Siquance) is a French deep-tech startup founded in 2022 as a spin-out of CEA-Leti and CNRS in Grenoble. It develops silicon-based quantum processors (spin-qubit architectures) using conventional FD-SOI CMOS fabrication, aiming for fault-tolerant, large-scale quantum computers. The company’s founders – veterans of European semiconductor and quantum research – have charted a path to harness mature chipmaking processes for quantum computing applications.

This strategy aligns with Europe’s drive to build sovereign tech in cutting-edge fields, since it could enable domestic production of advanced quantum hardware and reduce dependence on non-allied suppliers in critical computing technologies. Quobly’s focus on integrating qubits into standard chips, and its partnerships with industrial players like STMicroelectronics, suggests it may accelerate European capabilities in quantum computing – a field increasingly seen as dual-use with both civilian and defense significance. These factors make Quobly’s trajectory highly relevant to EU-NATO strategic objectives in technology autonomy and enhanced deterrence.

The following analysis examines Quobly’s corporate profile, technology portfolio, and role in European defense innovation ecosystems, highlighting its potential contributions and gaps in meeting EU and NATO capability needs. Quobly is a deep-tech startup (founding year 2022) headquartered in Grenoble, France. It emerged from CEA/CNRS labs with a mission to build universal silicon spin-qubit quantum processors using FD-SOI CMOS manufacturing.

As a technology provider, Quobly aligns with EU Emerging and Disruptive Technology priorities in Quantum Technologies and Semiconductors (Critical Tech). The company’s key asset is its unique IP portfolio (50+ patent families licensed from CEA/CNRS) and its scalable hardware approach. Quobly holds strong links to European RTOs and has secured institutional funding (EIC transition grants, French national “France 2030” program) and partnerships (STMicroelectronics collaboration) that support its development roadmap.