At a glance
| Booth | R7324 |
| Country | FR |
| Website | www.quobly.io |
Company profile
Quobly is a quantum computing company developing silicon-based quantum computers using proven semiconductor manufacturing processes. Founded in 2022 in Grenoble, France, Quobly focuses on making quantum computing scalable, manufacturable, and deployable so that quantum computing can move into broader real-world use. The company emerged in 2022 as a spin-off from CEA-Leti and CNRS, building on foundational research by CEA-Leti and CNRS teams that pioneered silicon spin qubits. Its development history includes the first 300 mm silicon qubit and a €15M ERC Synergy grant before the company launch, followed in 2023 by team growth, system-level R&D, and materials and device integration. In 2024, Quobly entered an industrial-alignment phase that included a partnership with STMicroelectronics in Nov 2024 and work with FD-SOI wafers. Its 2025 system-validation work covered qubit reproducibility, noise reduction, and a roadmap toward fault tolerance, while its 2026 execution milestone is a first cloud-accessible silicon-based processor with multi-generation scaling. Quobly has strategic semiconductor-industry partnerships with STMicroelectronics, Air Liquide, Soitec, and Orano to accelerate industrialization of its silicon quantum chips in advanced semiconductor manufacturing environments. In June 2026, Quobly raised a €115 million Series A led by Bpifrance, STMicroelectronics, and SEALSQ, with participation from industrial and deeptech investors, to accelerate industrialization of its quantum processors and bring its first commercial computers to market under the Alloy product line. Its first quantum computer is planned for deployment through cloud environments in 2026 for early adopters in high-performance computing and research. With 100+ collaborators, Quobly is headquartered in Grenoble, France, and has offices in Singapore and Canada. Quobly describes its mission as scaling on silicon by building quantum processors on proven semiconductor infrastructure and industrializing quantum computing by turning quantum breakthroughs into scalable, real-world systems. The company states that its focus is to make quantum computing reliable, reproducible, and usable at scale.
Exhibits
Quobly is developing silicon-based quantum computers for integration into existing infrastructure, with industrial, scalable, high-performance, and affordable systems positioned for operational deployment. Its Alloy quantum computers are engineered for data centers as rack-scale quantum systems designed for deployment in existing data centers across three product generations with modular upgrades. The company plans to bring its first commercial computers to market under the Alloy product line. Quobly builds industrial silicon qubits on proven semiconductor infrastructure using scalable silicon qubits on 300 mm wafers engineered for fault-tolerant systems. Its integration target combines 1M qubits and control electronics in a coin-sized chip and 3 data center racks. The platform is built around mature semiconductor processes, which Quobly says lower costs, and an industrial model based on thousands of identical chips and millions of qubits. Quobly states that its qubits operate at approximately 1 MHz and are QEC-ready. Its integrated quantum computers are intended for applications in chemistry, material science, optimization, and logistics. Quobly reports that 2.4+ million qubits have been fabricated at STMicroelectronics, alongside 100+ experts, 65 patents filed, and 5 global locations. Quobly is upgrading SOI (Silicon On Insulator) into QSOI® (Quantum Silicon on Insulator) and transferring FD-SOI-based silicon-qubit demonstrations developed at CEA-Leti to STMicroelectronics' 300mm manufacturing lines. Its quantum chips are co-designed with STMicroelectronics and manufactured on STMicroelectronics' 300mm semiconductor platform, providing industrial-grade manufacturing access for robustness, reproducibility, and scalability. For wafer materials, Quobly uses purified 28Si-based QSOI® wafers to provide a spin-free environment compared with usual FD-SOI wafers that the company describes as noisy in terms of spins. Quobly states that moving from the lab to the fab is necessary for scale because industrial manufacturing lines provide the precision and reproducibility required for large-scale Fault-Tolerant Quantum Computers. Its 1-qubit gates are obtained by applying magnetic fields to an electron's spin, while its 2-qubit gates are obtained by lowering the barrier between the qubits. After fabrication, the die is packaged and connected to a PCB that is lowered to 1 K in a cryostat, and control electronics embedded within the chip enable regular plug&play updates. The technology is described as operating at 1MHz at the physical level and 10kHz for logical qubits, with a reliability goal of 75% to 85% disponibility rate and a scaling path from 40 billion transistors to 1 million qubits on a single chip. Quobly reports 350 as the cumulated H-Index of its top 10 researchers, 65 patents, more than 12 academic partnerships, and 175 years of cumulated R&D and industrial experience across its top 6 managers. Its roadmap is organized around speed, reliability, and massive numbers of qubits, and it combines hardware and application co-design from the start to pursue industry-ready performance and efficiency. Quobly provides a silicon foundation intended to let partners build quantum-computing solutions that deliver value to end users, and it supports engagement with an application team to leverage the technology.
Capabilities and products
- silicon-based quantum computer development using semiconductor processes
- rack-scale quantum computers for data centers
- fault-tolerant silicon qubits on 300 mm wafers
- million-qubit chip and control-electronics integration
- QSOI® quantum silicon-on-insulator wafer technology
- purified 28Si quantum wafers
- quantum-chip co-design on a 300 mm semiconductor platform