Northern Ireland Water

The principal activities of NI Water (the Group) are the supply of water and the collection and treatment of sewage in Northern Ireland. The Parent Company (NI Water Limited) is domiciled and incorporated in Northern Ireland. The Registered Number is NI054463 and the Registered Office is Westland House, 40 Old Westland Road, Belfast, BT14 6TE. The Parent Company is wholly owned by the Department for Infrastructure.
Every aspect of life in Northern Ireland depends on NI Water’s vital infrastructure. Our business is essential to support a healthy and thriving population, a growing economy and a flourishing natural environment. Every day NI Water provides around 600 million litres of drinking water and recycles around 370 million litres of wastewater. Thousands of assets at a value of around £3bn, are operated and maintained to provide these services.