The Water Services Act 2013 provided for the establishment of Irish Water as an independent subsidiary within the Bord Gáis Éireann Group (now renamed Ervia), to be formed and registered under the Companies Acts. Section 5 of the Act provides that the shareholders of Irish Water are Ervia, the Minister for the Environment, Community and Local Government and the Minister for Finance. Following a Government decision to have a single unitary non-executive board for the Ervia group as a whole, the Irish Water board has been reconstituted to include only executive directors drawn from Irish Water senior personnel and from the Ervia Group.
The names of those appointed as executive directors of Irish Water effective 1 December 2014 are as follows: Mr. Michael McNicholas, Mr. John Tierney, Mr. Michael G. O’Sullivan and Mr. Brendan Murphy. Mr. Michael McNicholas is the current Chairman of Irish Water.