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7. Desmarais Family
Net Worth: $8.38 billion
Change from 2017 Ranking: ▲24.9%
Major company holdings: Power Corp. of Canada
The Desmarais family kicked off the new year by snapping up Performance Sports Group, the company behind the Bauer and Easton brands, for $575 million with partner Fairfax Financial Holdings Ltd. The purchase adds to their growing influence in the sporting-goods realm, where the Desmarais hold a seat on the board of Adidas AG and hockey gear company CCM.