More than 100 utility companies in 47 countries use its technology, which monitors and controls water supply to 50 million people. It claims to cut leaked water by up to 47% while reducing the number of burst pipes, helping to save on operating costs. Customers include Anglian Water and the city of Cape Town. The company has raised more than £31m from investors including UK environmental tech investor Ombu, and is led by Joel Hagan, 51.