- CEO
- Dominique Louis
- Full Time Employees
- 7,729
- Sector
- Industrial services
- Industry
- Engineering & construction
- Address
- Tour EgEe Courbevoie IF France 92400
- IPO Date
- Jan 1, 1995
- Business
- Assystem S.A. is a global engineering and project management firm, dedicated to accelerating the worldwide energy transition and optimizing critical infrastructure assets. The company delivers comprehensive engineering and digital solutions across the entire lifecycle of intricate projects for public entities and industrial clients globally. Its extensive service portfolio encompasses consulting, design, systems engineering, construction supervision, and commissioning support, along with advanced project controls, risk assessment, and compliance services. Assystem further provides expertise in digital transformation, including engineering information systems, building information modeling (BIM), 4D planning, and the deployment of digital twin technologies to enhance operational efficiency. Primarily serving the nuclear sector, where it ranks among the top global engineering companies, Assystem is also a key partner in conventional energy, renewable power generation, electricity grid modernization, green hydrogen initiatives, defense, and transportation infrastructure, particularly railways. With nearly six decades of experience in highly regulated environments, the company excels in managing complex programs with stringent safety and security requirements. Recent strategic moves include acquisitions such as Mactech Energy Group and KEOPS Automation in early 2025, and L&T Infrastructure Engineering Limited in 2024, alongside collaborations aimed at developing advanced modular reactors and low-carbon hydrogen solutions. Established in 1966 and headquartered in Courbevoie, France, Assystem S.A. operates as a subsidiary of HDL Developpement SAS. The company remains committed to sustainable development and pioneering innovation through its "Imagine the Switch" and "Switch to ImpAct" programs, focusing on R&D for low-carbon energy solutions and fostering an inclusive work environment.