Eiffage SA operates in construction and concessions through five segments: Construction, Infrastructure, Energy Systems, Concessions, and Holding. It builds and renovates housing, offices, retail, hospitality, and public facilities; develops properties; and provides urban planning and regeneration. The company also constructs and maintains roads, motorways, ports, and airports, and undertakes civil engineering for transport infrastructure, water and waste treatment plants, energy production and transmission equipment, and hydraulic structures. Additionally, it designs, builds, integrates, operates, and maintains systems for electrical, industrial, climate control, and energy engineering, and is involved in concession contracts, public-private partnerships, hydroelectric and photovoltaic energy, and equity investments. Founded in 1844, Eiffage SA is headquartered in Vélizy-Villacoublay, France.