The Defence Infrastructure Organisation has awarded a £20m contract to the firm for facilities to house Number IX (Bomber) Squadron.
Work will start later this summer and is expected to take around two years.
It will involve the refurbishment of an existing hangar and construction of new technical and storage facilities.
The project forms part of a wider redevelopment of RAF Lossiemouth which also includes a refurbished runway and facilities for the RAF’s fleet of Poseidon Mk 1 sub-hunters.
Group captain Chris Layden, station commander RAF Lossiemouth, said: “This is great news for the Station, for Moray, and for the RAF. Defence’s sustained investment in RAF Lossiemouth continues to transform us into a next-generation fighter and maritime patrol base, ready to secure the UK’s skies and seas for many years to come.”
Keith Yarham, Defence Director at Galliford Try, said: “Together with our previous experience at RAF Marham and RAF Valley we are building a strong track record in the air station sector, and look forward to providing the personnel at Lossiemouth with the high-quality facilities they depend on.”