MILLENNIUM is a specialty engineering company with national and international reach, serving the energy, defense, nuclear (civil and military), infrastructure, and industrial sectors.
MILLENNIUM offers targeted technical solutions to its clients. With its recognized expertise in scientific calculations (neutronics, criticality, radiation protection, nuclear measurements, impact, thermals, etc.), safety demonstrations, and project management, construction management assistance, MILLENNIUM is involved throughout the entire life cycle of installations and projects.

Our expertise
Engineering projects and trades
Design and Project Management Assistance or Project Turnkey (Main Contractor Engineering):
- Building or equipment design
- Decommissioning studies
- Project management
- Technical secretariat / document management system (DMS) management
- Scheduling
- OPC (Organization, Planning, Coordination)
- BIM management
- Testing and commissioning
- Electrical studies
- Seismic dimensioning
Risk management
Expertise in risk management and safety demonstration:
- Facility safety
- Transport safety
- Reactor safety
- Specific risk analyses: Human Factors, fire, criticality, etc.
- Industrial and construction site safety
- Quality, Safety, and Environmental management


Nuclear calculation expertise
A Design Office dedicated to scientific calculations:
- Criticality, neutronics
- Dispersion calculations, impact
- Source terms, radiation protection
- Nuclear measurements
- Multiphysics calculations


