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About us
Clemessy, the Eiffage Énergie Systèmes brand, brings together all the skills and expertise dedicated to the world of industry.
- Presentation
- Location
- Recruitment
- Our skills
About us
Clemessy, the Eiffage Énergie Systèmes brand, brings together all the skills and expertise dedicated to the world of industry.
Multi-technical skills

Solutions designer

Maintenance engineering
Our market expertise
Clemessy, the Eiffage Énergie Systèmes brand dedicated to industry, meets the most complex challenges of various markets.
Our market expertise
Clemessy, the Eiffage Énergie Systèmes brand dedicated to industry, meets the most complex challenges of various markets.
Industries of the future
Industries of the future
Clemessy, the Eiffage Énergie Systèmes brand dedicated to industry, offers all industries of the future customised solutions.
Industries of the future
Clemessy, the Eiffage Énergie Systèmes brand dedicated to industry, offers all industries of the future customised solutions.
References
Media
Find here all the news of Clemessy and stay connected on our application and networks.
Media
Find here all the news of Clemessy and stay connected on our application and networks.
Contact

Chantiers de l'Atlantique

Saint-Nazaire (44)

The Clemessy teams took up the challenge of the project to complete the electricity networks for the Harmony of the Seas and Symphony of the Sea vessels.

Engineering and erection of the electricity networks (500 km) on the Harmony of the Seas and Symphony of the Sea vessels (lighting, HV, LV, IT).

Considerable amount of work carried out jointly