Quobly raises €115M Series A to commercialise silicon quantum computing

Quobly, a French quantum computing company developing silicon-based quantum computers, has raised €115 million in a Series A financing round to accelerate the industrialisation of its technology and support the launch of its first commercial product. The round was led by Bpifrance, SEALSQ and STMicroelectronics, with participation from the European Innovation Council (EIC), Blast, Air Liquide Venture Capital (ALIAD) and existing investor Innovacom. Existing shareholders also include the CEA, CNRS, Quantonation and Supernova Invest.

This Series A follows Quobly’s seed phase, during which the company developed its silicon-qubit technology and system architecture integrating hardware, control and software components.

Maud Vinet, CEO and co-founder of Quobly, said the financing marks a transition from technology validation to industrial deployment:

With this Series A, we are accelerating the deployment of our first commercial systems and building a quantum computing platform designed to integrate into existing computing infrastructures. Our objective is to make quantum computing deployable, scalable and usable within real industrial environments.

Quobly’s approach is based on FD-SOI technology manufactured on 300 mm wafers, leveraging established semiconductor processes to address challenges related to scalability, yield and reproducibility. The company develops silicon qubits designed for dense integration and compatibility with industrial fabrication standards.

The first system in Quobly’s Alloy product line, Alloy Pioneer, is expected to be available through the cloud in 2026 via Alloy Forge, the company’s quantum application development platform. The system will subsequently be deployed in high-performance computing (HPC) environments. Quobly’s quantum computers are designed for integration with existing HPC and data centre infrastructures, supporting deployment within established computing environments.

As part of its industrialisation efforts, Quobly works with partners across the semiconductor ecosystem to support the development and manufacturing of its technology, including process control, materials engineering, cryogenics and yield optimisation.

The funding will be used to improve the performance and scalability of Quobly’s quantum computing platform, advance the industrialisation of its silicon quantum processors and support the deployment of the first Alloy systems in cloud and HPC environments. These efforts will be supported by the continued development of the company’s hardware, control electronics and software stack through its system-level co-design approach.