Severn Trent Plc engages in the provision of waste water treatment services. It operates through the Regulated Water and Waste Water and Business Services segments. The Regulated Water and Waste Water segment comprises Severn Trent Water Limited's wholesale operations and household retail activities and related support functions. The Business Services segment includes the Operating Services businesses in the United States, United Kingdom, Ireland, and Italy; the Group's renewable energy business and Severn Trent Water Limited's non-household retail business. The company was founded in 1974 and is headquartered in Coventry, United Kingdom.