[1] The company was founded in 1905 as the Canadian arm of the English publisher Macmillan.
[1] In 1998, Macmillan Canada, as it was then known, became an imprint of CDG Books, which was formed as a joint venture of Gage and US publisher Hungry Minds.
CDG was purchased in 2002 by John Wiley & Sons, who had acquired Hungry Minds the year before.
At this time Macmillan Canada ceased to exist either as an imprint or a publishing house.
[2] Over its nearly 100 years of existence Macmillan's published authors such as: Former presidents of Macmillan of Canada included Hugh Eayrs, John M. Gray, Hugh Kane, George W. Gilmour, and J. William Baker