# Quobly

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/quobly

- Industry: Semiconductors
- Headquarters: Grenoble, France
- Website: www.quobly.io
- Latest round: Series A (Apr 30, 2026)
- Investors on record: 13

## About

Based in Grenoble, France and founded in 2022, Quobly SAS, f.k.a., Siquance, provides silicon-based quantum computing solutions for the high-performance computing and deeptech industry. The company is a spin-off from CEA-Leti and CNRS, building on over 15 years of collaborative research in quantum technologies. The company was co-founded by its Maud Vinet (CEO) and Tristan Meunier (CSO). In April 2026, Quobly SAS raised Series A funding co-led by SEALSQ Corp., STMicroelectronics International N.V., ISALT, and Bpifrance Investissement Regions, with participation from European Innovation Council, Blast.Club, ALIAD, CEA Investissement, Supernova Invest, Quantonation, CNRS, Innovacom, and Audacia. The round was part of larger EUR 115 million series A and venture debt funding.

Quobly works with high-performance computing operators, data centers and enterprise users to provide industrial-scale, silicon-based quantum computing systems. Quobly develops fault-tolerant quantum processors using silicon spin qubits fabricated through Fully Depleted Silicon-On-Insulator (FD-SOI) technology on 300mm wafers, in partnership with STMicroelectronics. Its flagship Alloy product line, including Alloy Pioneer, delivers rack-scale quantum computers designed for existing data-center infrastructures, while its Alloy Forge software environment enables quantum application development. Supported by over 100 experts including physicists, engineers and researchers, Quobly serves customers across chemistry, materials science, optimization, logistics, pharmaceutical, energy and transportation sectors.

Quobly revenue is generated by providing access to its silicon-based quantum computing systems and software development environment to enterprise and research customers. Quobly engages in B2B transactions through cloud-based access to its Alloy Pioneer quantum computer via the Alloy Forge platform, enabling early-adopter clients in high-performance computing and research environments to run quantum applications. Additional revenue is supported through strategic industrial partnerships with STMicroelectronics, Air Liquide, Soitec and Orano for co-developed quantum hardware deployments.

The company will use the April 2026 funding to accelerate the industrialization and scaling of its silicon-based quantum processors, expand R&D and software stack, and deploy its first commercial Alloy systems into customer cloud and HPC environments through international commercial expansion.

## Funding rounds

- Series A, Apr 30, 2026 — Innovacom, CEA Investissement, STMicroelectronics International N.V., Audacia, Bpifrance Investissement, ALIAD, Supernova Invest, CNRS, Quantonation, ISALT, Blast.Club, European Innovation Council, SEALSQ Corp

## Investors

- Innovacom (https://capitalatlas.ai/funds/innovacom) — Series A
- CEA Investissement (https://capitalatlas.ai/funds/cea-investissement) — Series A
- STMicroelectronics International N.V. — Series A
- Audacia (https://capitalatlas.ai/funds/audacia) — Series A
- Bpifrance Investissement (https://capitalatlas.ai/funds/bpifrance-investissement) — Series A
- ALIAD (https://capitalatlas.ai/funds/aliad) — Series A
- Supernova Invest (https://capitalatlas.ai/funds/supernova-invest) — Series A
- CNRS — Series A
- Quantonation (https://capitalatlas.ai/funds/quantonation) — Series A
- ISALT (https://capitalatlas.ai/funds/isalt) — Series A
- Blast.Club (https://capitalatlas.ai/funds/blast-club) — Series A
- European Innovation Council (https://capitalatlas.ai/funds/european-innovation-council) — Series A
- SEALSQ Corp — Series A