SES Water is the UK water supply company to its designated area of east Surrey, West Sussex, west Kent and south London serving in excess of 282,000 homes and businesses and a population of approximately 675,000 people.An area of 322 square miles (830 km2), extending from Morden and South Croydon in the north to Gatwick Airport in the south, and from Cobham and Dorking in the west to Edenbridge and Bough Beech in the east forms the company's supply area.