Business Secretary Vince Cable made the presentation on behalf of the Queen.
Cable said: “Ray is widely respected across the construction industry as a leader of real stature.
“He has been a long-standing champion of the Government’s construction industry improvement plan; demonstrating committed leadership, a focus on the customer and a quality-driven agenda.
“His use of lean construction methods and offsite manufacturing has eliminated waste and maximised efficiency.
“Coupled with his commitment to training people, this has helped Laing O’Rourke weather the downturn and serve as an exemplar for the rest of the industry. I’m delighted to present Ray with this important and hugely-deserved honour.“