Mersen's headquarters move to a green building

On March 22, 2022, Mersen moved into its new offices in the Trinity Tower at La Défense (Paris area).

With its double certification – HQE ‘Exceptional’ and BREEAM ‘Excellent’ – Trinity Tower’s environmental credentials are unprecedented.

It is the first office tower in France to get a perfect score on the HQE certification with all of the 14 targets achieved on the “High Performance” level.

The new workspaces are modular and welcoming. They offer freedom of use to Mersen's employees and visitors in response to the new nomadic and collaborative business practices.

Trinity Tower
1bis place de la Défense
92400 Courbevoie
T +33 (0)1 46 91 54 00



HQE : Haute Qualité Environnementale / High environmental
Quality BREEAM : Building Research Establishment Environmental Assessment Method