34. NI Water
Chief executive: Trevor Haslett
Pre-tax profit: £112.2m
NI Water was appointed as the sole provider of water, wastewater and sewerage services in Northern Ireland. It is the government-owned company established to take over from the Water Service. It is financed by government subsidy and non-domestic charging.
The company has responsibility for supplying 625 million litres of clean water a day for almost 1.7 million people as well as treating 134 million litres of wastewater every year.
NI Water has battled controversy for the past few years. In 2009, four directors were sacked after a damning report into the awarding of contracts.
In January 2011, Trevor Haslett was been appointed as chief executive after the resignation of Laurence MacKenzie.
NI Water also owns one of the most visited tourist sites in Northern Ireland, Silent Valley situated in an Area of Outstanding Natural Beauty.
Old Westland Road,
Tel: 08457 440088