Quobly Closes €115M Series A for Quantum Growth

Quobly, a French quantum computing startup founded in 2022 as a spinoff of CEA, Leti, and CNRS, has closed an €115 million Series A funding round, marking one of the largest early-stage investments in the global quantum industry. The oversubscribed round was led by the European Innovation Council (EIC) Fund, Bpifrance, and international venture capital investors specializing in frontier technologies. This funding will accelerate Quobly’s development of fault-tolerant quantum processors using silicon spin qubits, a scalable approach that avoids the need for costly, specialized manufacturing infrastructure. Unlike competitors relying on superconducting loops or trapped ions, Quobly’s design leverages standard silicon transistors, allowing integration with existing semiconductor foundries. This industrial-first method aims to overcome the scalability challenge of quantum computing, where millions of qubits are needed for commercial utility. Maud Vinet, Quobly’s co-founder and CEO, emphasized that silicon-based qubits provide a viable path to mass production, leveraging the world’s optimized semiconductor ecosystem. The investment will be allocated to three key areas: solidifying partnerships with global semiconductor foundries, developing cryogenic control electronics for ultra-low-temperature qubit management, and expanding Quobly’s Quantum Computer-Aided Design (Q-CAD) platform. This software enables engineers to model and optimize qubit layouts before manufacturing, ensuring high-density integration of thousands of qubits per square millimeter. Quobly’s €115 million raise also underscores Europe’s push for technological sovereignty in quantum computing, competing with advancements in the U.S. and China. By utilizing silicon-based qubits, Quobly aims to deliver commercially viable quantum processors sooner than rival architectures, potentially reshaping industries reliant on high-performance computing.