Who are we?


Cegelec CEM (240 employees, 45 M€ of turnover) is a company of the Nuclear Pole of VINCI Energies.

Cegelec CEM stands as Design & Manufacturing Engineering, Assembly and Global Integrator in the nuclear field. We have been specialised in mechanical, electro-mechanical and multidisciplinary high added value projects for more than 30 years.

Our skills

Our positioning goes far beyond our engineering and design capability.
We perform highly-technical new build or refurbishment turnkey projects, and provide a large range of services for NPPs and scientific & research programs.

Our companies dedicated to the nuclear field:

The activities of Cegelec CEM are carried by three Business Units dedicated to the nuclear market:

CEM Ingénierie

Business Unit specialized in preliminary studies and design & manufacturing engineering.
CEM Ingénierie is an expert in multidisciplinary mechanical projects.

Our services:

  • Preliminary design
  • Engineering works
  • Engineering for EPC contracts
  • System engineering approach

30 years of know-how to meet your requirements in:

– Mechanics, electro-mechanics
– Electricity, instrumentation and control-system
– Nuclear engineering, calculations
– Safety
– General installations & process installations
– Inspection
– Expertise: Nuclear codes and standards, welding, materials…

Expert engineers.

CEM Projets

Business Unit dedicated to nuclear and scientific turnkey projects: research, dismantling and waste management.
CEM Projets does support its customers, in new build, in refurbishment projects, or in dismantling, decommissioning and waste management projects, in harsh environments.

Global integrator:

  • Facilities
  • Turnkey installations

Design & Build:

  • Mechanical equipment

High integrity handling systems
– Reactor pool liners
– Hot cells and their equipment (shielded doors, …)
– Process installations
– Storage and waste management

  • Scientific equipment

– Special metalworking and boilermaking fabrications
– Experimental devices

CEM Énergie

Business Unit which offers expertise to meet the specific issues of EDF NPPs fleet refurbishment:

  • Lengthening life cycle of installations
  • Upgrading according to new nuclear regulations
  • Improving existing plant / Reliability
  • Integrating Post-Fukushima lessons

The activities of CEM Énergie are divided into four business lines:

  • General and process facilities
  • Nuclear measurment
  • High integrity handling systems
  • Development and implementation of special machinery intervening in the core of the nuclear process

Qualified workers for operations in controlled area, ATEX, electrical works.