ASSYSTEM is an independent nuclear engineering company with nearly 60 years of experience providing engineering, project management, and digital transformation services across the energy and infrastructure sectors. The company employs 8,000 people and operates across Europe, Asia, Africa, and the Middle East, positioning itself among the top three nuclear engineering firms globally.
The firm's core expertise spans the entire nuclear lifecycle, from new reactor construction and advanced reactor technologies to operations, maintenance, and decommissioning. ASSYSTEM participates in every major European Pressurized Reactor (EPR) construction project worldwide and works with major industrial partners including EDF, Framatome, ITER, Rolls Royce, and Naval Group. Beyond nuclear, the company extends its services to renewable energy, hydrogen, power grids, and transportation infrastructure.
ASSYSTEM's service portfolio combines traditional engineering and project management with digital transformation capabilities designed to enhance safety, competitiveness, and environmental performance of large-scale infrastructure programs. The company's work focuses on delivering low-carbon energy solutions and supporting the broader energy transition globally.
