Aecon Group Inc. is a Canadian construction and infrastructure development company. Aecon delivers integrated solutions to private and public-sector clients through its Construction segment in the Civil, Urban Transportation, Nuclear, Utility and Industrial sectors, and provides project development, financing, investment, management, and operations and maintenance services through its Concessions segment. Aecon has been involved in the building of some of Canada's landmarks, including the CN Tower, St. Lawrence Seaway, Ontario Highway 407, Vancouver Skytrain, and the Montreal-Trudeau International Airport. Wikipedia