Our energy for nuclear power

TechnicAtome est spécialisée dans la conception, la réalisation, la mise en service et le maintien en conditions opérationnelles des réacteurs nucléaires compacts. TechnicAtome emploie 1 900 salariés au service de la propulsion navale, la recherche et l’énergie.

Depuis plus de 50 ans, elle offre son expertise en ingénierie nucléaire pour réacteurs, combustibles et installations associées, et propose à ses clients des solutions et produits qui répondent aux plus hauts standards de sûreté et de disponibilité.

A message from the


It is a well-known fact that the past year was an exceptional one. Indeed, 2022 was a year unlike any other for TA. It is not every year that we celebrate half a century in existence and we were delighted to do so together with our employees at all our sites, as well as all of our partners and customers, stakeholders in the French nuclear propulsion adventure.

Particularly as the year was such a busy one. A turnover of €500 million represents an increase of over 8% compared to 2022, with an operating margin that has remained satisfactory and a workforce that is following the trend. Close to 1,900 at the beginning of the year, it was just a little over 1,800 last January. All of our projects have been in active phases and almost all have required additional resources. We are recruiting in all areas, at all levels of seniority, and our sites are expanding in order to welcome newcomers in the best possible way.

2022 was significant also (above all) because of the return of war to Europe, bringing an end, perhaps, to overconfidence in the robustness of international trade circuits. Could this be the end of certain illusions? As an engineer and industrial designer at the service of national sovereignty, and accustomed to “French Eyes Only” procedure, TA is a modest but key player in French manufacturing. We are at the forefront of helping to ensure that re-industrialisation, a concept which enjoyed success in 2022, becomes a concrete reality.

On 30 September, the on-board steam supply system of the nuclear-powered attack submarine Duguay-Trouin, which we are completing with Naval Group, started up on time and is the third reactor we have started up in four years. The preliminary design of the next generation aircraft carrier reactors is nearing completion and meeting its targets, and the Nuward Civil Modular Reactor programme will enter the detailed design phase in 2023. On the civil nuclear side, too, TA is still closely linked to the French Alternative Energies and Atomic Energy Commission (CEA) for the construction of the Jules Horowitz reactor at Cadarache, a facility that is now more relevant than ever to support the ageing of the current reactors and the emergence for another half-century of future nuclear power plants in operation.

TA is doing well, thanks to its solid long-term fundamentals, products of the highest quality and soon, 2,000 employees, all committed to our great project. Join us

Chairman and Managing Director of TechnicAtome


TechnicAtome offers its expertise in nuclear engineering for reactors, fuels and associated facilities, and provides its customers with solutions and products that meet the highest standards of safety and availability.


Strategic guidelines

Our dominant activity is nuclear naval propulsion. In addition to this central pillar are complementary activities identified in the Cap TA strategic plan defined in 2018:


Key figures

With a growing revenue and an order book of several years, the company is experiencing a very dynamic period and has a solid financial strength to meet the technical challenges to come

Jean Merveilleux du Vignaux

Financial and Legal Director

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