The Mott MacDonald Group is a multidisciplinary consultancy with headquarters in the United Kingdom. It provides engineering, management and development services internationally, with 16,000 staff in 150 countries. Mott MacDonald is one of the largest employee-owned companies in the world. It was established in 1989 by the merger of Mott, Hay and Anderson with Sir M MacDonald & Partners. It has won more than 500 industry awards in the last five years and is among the top ranked firms in the annual league tables published by Engineering News Record and New Civil Engineer. Projects completed by the firm include the Hong Kong International Airport and the Channel Tunnel.