Molson-Coors Canada Inc. is the Canadian division of the world's fifth-largest brewing company
A brewery is a dedicated building for the making of beer, though beer can be made at home, and has been for much of beer's history. A company which makes beer is called either a brewery or a brewing company....

, the Molson Coors Brewing Company
Molson Coors Brewing Company
Molson Coors Brewing Company is a company that was created by the merger of two of North America's largest breweries: Molson of Canada, and Coors of the United States, on February 9, 2005...

. It is the second oldest company in Canada after the Hudson's Bay Company
Hudson's Bay Company
The Hudson's Bay Company , abbreviated HBC, or "The Bay" is the oldest commercial corporation in North America and one of the oldest in the world. A fur trading business for much of its existence, today Hudson's Bay Company owns and operates retail stores throughout Canada...

. Molson's first brewery was located on the St. Lawrence River in Montreal
Montreal is a city in Canada. It is the largest city in the province of Quebec, the second-largest city in Canada and the seventh largest in North America...

 where the Molson family
Molson family
The Molson family of Montreal, Quebec, Canada was founded by John Molson who emigrated to Canada in 1782 from his home in Lincolnshire, England....

 continues to maintain its headquarters today.
Founded in Montreal in 1786, Molson Coors Canada is the oldest brewery in North America and continues to produce beer on the site of the original brewery.