Proficiency in challenging environments
We have been working on nuclear construction projects in technically demanding environments for over 40 years.

Nuclear Sites

Proficiency in challenging environments
We have been working on nuclear construction projects in technically demanding environments for over 40 years.

Construction-based protection
As industry leaders in nuclear civil engineering, we apply the highest standards to guarantee safety, quality and protection for our teams.

Technical know-how in nuclear civil engineering
We draw on our expertise in industrial civil engineering and underground structures to work on specific nuclear facilities.
With our organisation structured by business line, we can ensure that our specialist teams are able to meet the technical, logistical and environmental requirements of sensitive sites.

Combining skills across the value chain
Our services cover the entire value chain: technical studies, environmental engineering, construction, renovation and deconstruction.
With this comprehensive approach, we can tailor each solution to the specific characteristics of the site and to the client’s objectives.

Rigorous safety standards
Building for life also means ensuring the safety of those who work on our construction sites. When working on nuclear sites, the principles we apply are fundamental and non-negotiable.
Our goal is clear: zero serious accidents in every country where we operate.
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Nuclear sites impose strict requirements in terms of safety, precision and organisation. We operate on these sites with proven expertise in industrial civil engineering, underground structures and specialised works.
We design, build and renovate technical structures with a comprehensive approach to the value chain, from engineering to construction.
Building for life means that 'everything we do is built to last'. When it comes to nuclear sites, this equates to robust infrastructure designed to withstand the most demanding conditions and guarantee the protection of people and the environment.

Working in the nuclear sector involves major responsibilities in terms of safety, operational excellence and environmental performance. Our actions are guided by a demanding safety culture based on rigorous processes, risk management and ongoing improvement.
We also have ambitious goals regarding reducing our carbon footprint and optimising resources to balance industrial requirements with the energy transition.
We work with local authorities and industrial companies to build safe, sustainable nuclear facilities that align with today's energy challenges.


A metal containment structure designed to provide long-term protection for the nuclear reactor damaged in 1986 and to facilitate its decommissioning.

Construction of the civil engineering and secondary works for this nuclear test simulation centre, located in the south-west of France. The building covers a footprint of 40,000 m² and includes 150,000 m² of floor space.

Construction of two nuclear facilities in La Hague, designed to process waste in accordance with stringent safety and containment standards.