CEA Investissement
CEA Investissement is a venture capital arm of Commissariat à l'Energie Atomique, specializing in seed and early-stage investments. It focuses on companies commercializing innovations from CEA or operating in technology sectors where CEA is active in research and development, such as life sciences, micro/nanotechnologies, new energy technologies, security, materials, biotech/medtech, systems, and software. Based in France with offices in Grenoble and Paris, the firm typically invests between €0.2 million to €0.8 million, co-investing with others and seeking a minority stake and board seat.
Top Stages
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Past deals in Nuclear Energy
HEXANA
Seed Round in 2025
HEXANA develops an energy platform that integrates sodium-cooled fast-neutron reactors with a thermal management system and high-temperature storage to deliver flexible on-demand electricity and process heat while reducing nuclear waste. The modular reactors are designed for both on-site and grid-scale deployment, enabling flexible power production and direct industrial heat applications with emphasis on safety and waste management.
Blue Capsule Technology
Seed Round in 2024
Blue Capsule Technology specializes in developing advanced nuclear reactors designed to produce industrial-grade heat for various industries. Their innovative technology uses TRI-structural isotropic particle fuel and sodium cooling in an underground modular system, aiming to reduce dependence on fossil fuels and decarbonize high-temperature processes.
Nexess
Venture Round in 2010
Founded in 2006, Nexess specializes in developing and selling advanced security management solutions for nuclear and high-risk industrial plants. Its product portfolio includes RFID tags, smart cameras, antenna systems, and software platforms designed to enhance traceability, productivity, and security. Headquartered in Mougins, France, with an additional office in Paris, the company serves clients aiming to improve their operational efficiency and safety.
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