TechnicAtome has been designing, building and operating nuclear reactors for over 50 years, drawing on its integrated expertise and specialist teams spread across eight sites.
Our teams possess expertise across all areas of nuclear technology, enabling them to design, build and operate facilities for defence, research and energy generation.
Our projects are complex, of strategic importance to the country and long-term in nature. Discover unique projects at the cutting edge of technology.
Beyond our expertise, our business is structured around clear and measurable commitments. Safety, ethics, the environment and local roots: discover the cornerstones of our relationship with our stakeholders.
TechnicAtome has been designing, building and operating nuclear reactors for over 50 years, drawing on its integrated expertise and specialist teams spread across eight sites.
Our teams possess expertise across all areas of nuclear technology, enabling them to design, build and operate facilities for defence, research and energy generation.
Our projects are complex, of strategic importance to the country and long-term in nature. Discover unique projects at the cutting edge of technology.
Beyond our expertise, our business is structured around clear and measurable commitments. Safety, ethics, the environment and local roots: discover the cornerstones of our relationship with our stakeholders.
Actualités
15 December 2025
The nuclear attack submarin (SSN) De Grasse, the fourth in the Barracuda program, has just reached a major milestone with the startup of its nuclear reactor. This step, led by TechnicAtome teams, involves ensuring the reactor starts up properly to verify the propulsion system’s operation prior to sea trial campaign.
© Naval Group/Lucille Pellerin/REA
Further reading
