About us

Facts And Figures

Adexsi is a network of manufacturers with extensive expertise in the field of natural lighting, ventilation and smoke extraction, acoustic and energy management.

An extensive expertise


ADEXSI is one of the world leaders in fire safety, smoke vent and natural lighting, as well as in energy management, whatever the type of building, in facades and roofs.

ADEXSI is composed of :


5 historical leaders in their market : Bluetek, Essertec, Souchier-Boullet, SIA, Langethermo

A brands power : Cooléa, Lightube

9 factories including 7 in France

17 locations for installation and maintenance

3 subsidiaries worldwide: Morocco, United Kingdom, China

900 employees around the world

160,000 units produced per year