Quobly, the French startup building quantum computers, has raised a €115m Series A to move the production of its technology from lab to industrial scale.
The round was co-led by French public bank Bpifrance and European semiconductor companies Sealsq and STMicroelectronics.
The European Innovation Council (EIC) also participated, alongside French investors Blast and Innovacom, as well as Aliad, the venture arm of gas and technology corporate Air Liquide.
Quantum computers are expected to unlock vast amounts of computing power once they reach a certain scale, with significant impacts in fields ranging from AI to finance and pharmaceuticals.
The technology is still in early stages but is maturing at pace, with investor interest in the sector rapidly growing. Four megarounds ($100m+) have been raised in quantum computing in Europe since the start of the year, including a record-setting £260m ($350m) Series C secured by UK-based Oxford Quantum Circuits this week.
“Quantum computing has the potential to revolutionise the world of computing, which implies enormous economic value,” says Maud Vinet, Quobly’s cofounder and CEO. “We’re hugely benefitting from this dynamic.”
What does Quobly do?
Quantum computing companies around the world are racing to build a large-scale quantum computer, using different approaches. Quobly’s method leverages silicon, a standard material used to fabricate semiconductors, to trap ‘qubits’ — the tiny particles that form the basis of a quantum computer, and are the equivalent of ‘bits’ in a standard device.
The startup says this means it can use existing semiconductor infrastructure and processes to create its quantum chips.
“For quantum computing to deliver value, we’re going to need millions of qubits,” says Vinet. “This will require yield and industrial capabilities.”
“The strategic choice we have made is to leverage the semiconductor industry for its high performance, lower costs and existing infrastructure, which will enable us to go faster in producing these qubits.”
Quobly has created quantum chips on a pilot semiconductor manufacturing line in partnership with French research institute CEA-Leti, which Vinet says successfully met the industry’s constraints in terms of dimensions and materials.
The startup is now planning to transfer the process to an industrial setting thanks to a partnership with semiconductor manufacturer STMicroelectronics.
“This will enable us to move from a technological demonstration phase to the deployment of our machines in a real-world environment,” says Vinet.
Silicon competition
Quobly is not the only company betting on silicon qubits to build quantum computers. Last month Oxford University spinout Quantum Motion, which has a similar approach, raised a $160m Series C, one of the largest rounds secured by a European quantum computing startup. Quantum Motion is working in partnership with US chipmaker Global Foundries to develop its devices.
Quobly is largely a pre-revenue company; the company has made €10m in revenues in 2025 and 2026, which mostly came from the Proqcima programme, a competition launched by the French government in 2024 to build a large-scale quantum computer by 2032.
The startup plans to make its first quantum computer commercially available through the cloud by the end of this year, and to start deploying devices in customers’ physical computing infrastructure in 2027.
