Kier Group plc primarily engages in the construction business in the United Kingdom and internationally. The company operates through three segments: Construction, Infrastructure Services, and Property. It constructs power stations, roads, bridges, tunnels, and buildings; and provides maintenance services for the U.K. road, rail, and utilities infrastructure, as well as reactive repairs. The company also provides housing maintenance and facilities management services, as well as environmental services comprising street cleaning, grounds maintenance, and commercial waste services; and invests in and develops property schemes and sites. Kier Group plc was incorporated in 1992 and is headquartered in Salford, the United Kingdom.