A subsidiary of the VINCI Group,their business is the management, design and implementation of complex infrastructure projects.It is currently working on Line b Lot 1 of the Rennes Metro and on the Viaduct at sea of ??the New Coastal Road on the island of Reunion. - Hydraulic infrastructures: Aperes wastewater treatment plant, dams,Energy and nuclear: Romanche Gavet hydroelectric plant, Tokamak ITER project, Functional structures: Louis Vuitton Foundation, Les Terrasses du Port.It is currently a major player in the Greater Paris projects.