assystem
Assystem is a leading independent nuclear engineering firm dedicated to accelerating the global energy transition.
Company facts
- Employees
- 10,000
- Headquarters
- France
- Type
- Enterprise
About
Assystem is a leading independent nuclear engineering firm dedicated to accelerating the global energy transition. With 8,000 professionals across 13 countries, the company designs, supervises, and delivers complex nuclear, renewable, and hydrogen projects while driving digital transformation for power grids and low‑carbon transport infrastructures. Leveraging 59 years of expertise, Assystem partners with industry giants such as EDF, Engie, and Rolls‑Royce to deliver innovative solutions that improve performance and speed of infrastructure development. Recognized as one of the top three nuclear‑energy companies worldwide, Assystem combines deep technical know‑how with a proactive approach to climate‑positive energy solutions.