Ervia has appointed Mike Quinn as its new chief executive following a competitive recruitment process.
Ervia is responsible for the country's national gas and water infrastructure and delivers its services through Gas Networks Ireland and Irish Water.
Mr Quinn will take up the role on a seven year contract from October following the departure of outgoing CEO Michael McNicholas.
Mr McNicholas stepped down from the role at the end of May.
Mr Quinn joins Ervia from Bord na Mona where he has held the position of managing director since February 2015.
Ervia has 1,500 employees and a further 5,700 employed in partner companies directly involved in providing services to its 1.7 million customers.