Quobly has raised EUR €115 million in a Series A financing round, one of the larger recent fundraisings in Europe's quantum computing sector.
The French company will use the money to continue research and development, expand industrialisation work and support international commercial growth as it prepares to introduce its first product.
That product, Alloy Pioneer, is due to be made available through the cloud by the end of 2026. It is aimed at early users in high-performance computing and research settings, with deployment inside HPC infrastructure expected later.
The round was led by Bpifrance, SEALSQ and STMicroelectronics. Other participants included the European Innovation Council's EIC Fund, Blast, ALIAD, the venture capital arm of Air Liquide, and existing investor Innovacom.
Existing shareholders also include CEA, CNRS, Quantonation and Supernova Invest. Bpifrance invested through the Deep Tech 2030 fund, which it manages on behalf of the French government under the France 2030 initiative.
Quobly is seeking to build quantum computers using silicon and established semiconductor manufacturing methods rather than more specialised approaches. Its technology is based on FD-SOI processes on 300 mm wafers, which the company argues can help address issues including scale, yield and reproducibility.
That manufacturing strategy is central to its pitch to investors and industrial partners. Quobly says its systems are being designed to fit within existing HPC and data-centre environments, including compatible requirements for footprint, power supply and utilities.
Customers will also be able to develop and test applications through a software environment called Alloy Forge. The platform is intended to let users work under hardware conditions closer to those of commercial machines.
The latest financing follows a EUR €19 million seed phase spanning 2023 to 2025. During that period, Quobly said it demonstrated the feasibility of developing silicon qubits within semiconductor manufacturing processes and built a system architecture combining device, control and software layers.
Industrial backers
The investor line-up reflects Quobly's effort to tie quantum development closely to the wider semiconductor supply chain. It is working with industrial groups including STMicroelectronics, Air Liquide, Soitec and Orano on manufacturing, materials, cryogenics and process control.
Those partnerships are intended to help move its technology from laboratory development into advanced production settings. In a sector often defined by research milestones rather than factory output, the emphasis on industrial execution will test whether quantum hardware can be produced in larger volumes.
Europe has been trying to build domestic strength in quantum computing as governments and companies compete to secure a place in a field seen as strategically important for science, industry and digital sovereignty. Quobly's backers framed the investment in those terms, focusing on maintaining a European presence in the underlying technology stack.
"This financing marks a transition from technology validation to industrial execution. Over the past two years, we have demonstrated that silicon qubits can be developed within semiconductor manufacturing processes and integrated into a system architecture. 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," said Maud Vinet, Chief Executive Officer and Co-Founder of Quobly.
STMicroelectronics has worked with Quobly on FD-SOI, a semiconductor process that both companies see as relevant to scalable quantum hardware.
"Quantum computing will achieve the scale needed by HPC customers only if breakthrough quantum systems can be industrialized and integrated with semiconductor-grade rigor and backed by a robust ecosystem. We are leveraging years of shared expertise in FD-SOI and deep technological collaboration to accelerate the commercialization of Quobly's products through a 300 mm silicon fab environment. ST's investment in Quobly further demonstrates our commitment to support its global ambitions," said Laurent Malier, Executive Vice President of Global Technology R&D at STMicroelectronics.
Bpifrance said the investment aligns with a wider effort to support domestic technology groups in areas judged strategically sensitive.
"Our second investment in Quobly is fully in line with our ambition to support the emergence of sovereign technology champions. By choosing a quantum architecture compatible with established microelectronics industry standards, Quobly paves the way for the rapid and controlled industrialization of breakthrough technologies, an essential condition to ensure Europe's strategic autonomy in quantum computing," said Gwenaël Hamon, Senior Investment Director at Bpifrance.
SEALSQ linked its investment to a partnership focused on combining quantum processing with post-quantum security technology.
"SEALSQ is proud to participate as a lead investor in Quobly's Series A financing. This investment builds on the technical partnership initiated in 2025. By combining Quobly's silicon-based quantum processors with SEALSQ's post-quantum security technologies, this collaboration contributes to the development of secure quantum computing systems. It supports the development of trusted quantum systems for industrial and critical applications," said Carlos Moreira, Chief Executive Officer of SEALSQ.
"Quobly represents a rare combination of breakthrough scientific capability and industrial execution discipline. The company is positioning itself at the intersection of quantum computing, semiconductor manufacturing and high-performance computing infrastructure, three strategic domains that will shape the next generation of computing technologies," said Philippe Delmas, Chairman of the Board of Quobly.