Balfour Beatty has appointed Richard Adams as its Managing Director of Balfour Beatty Rail Projects, and John Keaveney as its new Managing Director for Ireland.
Adams had been managing director of the London Underground Services division of Balfour Beatty Rail, and previously worked for Amey Rail.
He has worked in rail for 10 years, with a further 20 in construction.
Adams will be responsible for bringing the London, UK and international businesses together, saying he, "looks forward to building a company where people and customers can prosper. Delivery, safety and quality continue to be our highest priorities."
In Ireland, Keaveney was previously general manager of the Irish business, taking over from Eamon Corcoran, who retired at the end of 2007.
Keaveney said: "Since Balfour Beatty Ireland was established almost four years ago, it has built a strong reputation for successfully delivering multi-disciplinary civil engineering projects in Ireland.
"This business is continuing to grow and, by providing confidence in our service and construction, we are achieving our aim to develop a self-sustaining, profitable business across Ireland by forming long-term relationships with clients."
Keaveney had previously been involved in Ireland's first PPP road contract. He has also worked on the construction of the Jack Lynch Tunnel in Cork.