It is a non-profit private enterprise that neither issues share capital nor receive government funding.
In 1987 the federal government developed a national policy to give the operation and maintenance of all major airports to the private sector.
At its inception, the ADM faced many challenges, mainly maintaining two underused airports with similar mission serving one city.
ADM added several new features to the airport, including a new international jetty and a new arrival complex.
A project to connect Pierre Elliott Trudeau International Airport to Montréal downtown via express-trains is currently in development and was given a priority status.