C12 manufactures quantum processors using spin qubits and proprietary nanomaterials, operating a production line for quantum chips in Paris. The engineering-heavy hiring mix (12 roles) paired with active R&D on error correction and multi-qubit experiments reflects a hardware-stage company scaling from prototype toward commercial deployment. Security and compliance infrastructure (penetration testing, incident response, classified-data management) appears disproportionately mature for a 55-person startup, likely driven by IP sensitivity and industrial customer requirements.
C12 is a quantum hardware startup founded in 2020 and based in Paris, designing and manufacturing quantum processors built on spin-qubit architecture. The company operates a proprietary quantum chip production line and has delivered devices with record performance metrics. Revenue is generated through partnerships with industrial companies seeking to evaluate quantum computing applications for computationally intensive problems. The founding team includes 25 quantum scientists, with a total headcount of 55 across engineering, research, security, and operations functions. The company has raised over €25M in equity funding to date.
C12 manufactures quantum processors using spin-qubit technology and proprietary nanomaterials, with an operational production line for quantum chips. The company is advancing multi-qubit experiments and quantum error correction AI to scale processor performance.
C12 is headquartered in Paris, France, with 55 employees including 25 quantum scientists. The company was founded in 2020 and remains privately held.
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