On November 2, 1921, Dandurand and his partners, Joseph Cattarinich and Louis Letourneau, purchased the Montreal Canadiens hockey club from the widow of George Kennedy for $11,000. Under Dandurand's ownership, the Canadiens won the Stanley Cup in 1924, 1930, and 1931. Letourneau sold his stake in the club in 1930, and Dandurand and Cattarinich continued as owners until selling the team in 1935 for $165,000.