Kier Group plc primarily engages in the construction business in the United Kingdom and internationally. The company operates through four segments: Construction, Infrastructure Services, Property and Corporate. It constructs power stations, roads, bridges, railways, and tunnels; and buildings for public and private sectors, including schools, hospitals, defence estate optimisation, commercial, residential and heritage buildings for local authorities, the Ministry of Justice, other government departments, and prisons. It also provides maintenance services for the UK road, rail, and utilities infrastructure, as well as reactive repairs; water and network services; mechanical and electrical engineering and fabric maintenance services; and cleaning, grounds' maintenance, security, and pest control services. In addition, the company invests in and develops property schemes and sites. Kier Group plc was incorporated in 1992 and is based in Salford, the United Kingdom.