PRWeek has learned that the firm has recruited Rebecca Salt, currently executive vice-president for marketing and comms at CEVA Logistics, to lead its global comms.
Balfour Beatty declined to comment, but it is thought Salt will assume her newly created role in April.
One observer noted: 'Balfour Beatty has never had a history of comms, but has decided it wants to grow the brand internationally and wants a central communicator to support its growth into emerging markets.'
It is also thought the firm views the London 2012 Olympics as a springboard to grow its profile.
Earlier this year, it was announced that the firm had won a £50m, ten-year contract to run services and facilities for the future Queen Elizabeth Olympic Park, including operating the 377ft-high observation tower, the ArcelorMittal Orbit.
Balfour Beatty also won the mandate to build the £242m Aquatics Centre in Stratford, which will be a focal point of this year's Games.
Salt has spent three years at CEVA Logistics. Before that she worked as senior vice-president, corporate comms and strategic marketing at DHL, director of comms at Earls Court and Olympia owner EC&O Venues, and group head marketing and comms at Exel.
Balfour Beatty currently uses Pelham Bell Pottinger for financial comms and Edelman to support its public affairs.
It is the UK's largest construction and engineering firm, and one of the world's top 20.
It works primarily on infrastructure projects including rail, roads, hospitals, educational establishments and energy plants.