Acquisition opens the door to nuclear plant and recycling work across France.
International project management and services company Amec has bought the French nuclear engineering company Game Nucleaire SAS, and its subsidiaries, for E20 million (£14.3 million).
Sir Peter Mason, chief executive of AMEC, said: “We are seeing increased levels of activity in the nuclear sector in all of our home markets.
"This strategic acquisition significantly strengthens AMEC SPIE’s existing nuclear business and enhances our ability to target nuclear power plant maintenance and fuel recycling work across France."
In 2004 Game Nucleaire SAS had a turnover of E45 million (£32 million). It currently employs 620 staff.