the Montreal Transit Corporation — the public transit corporation for the megacity and Island of Montreal; it replaced the MUCTC in 2002.
the Montreal Transit Commission — the public transit commission for the island and City of Montreal; it was replaced by the MUCTC in 1970, it replaced the Montreal Tramways Co. in 1950 when the latter was nationalized.
the Montreal Tramways Company (Montreal Tramways Co.) — the public transit company of the island of Montreal; the company was nationalized in 1950 and replaced by the Montreal Transit Commission, it was formed in 1911 by the merger of several previous companies.
