5. Saputo Family
Net Worth: $10.41 billion
Change from 2017 Ranking: ▼1.8%
Major company holdings: Saputo, Transforce
Among the top 10 dairy producers in the world, the $16-billion multinational Saputo sells its milk, cheese, yogurt and other goods under dozens of different brand names around the globe. The Saputo family likes to think big: The company is the largest cheese maker in Canada, third largest in both the U.S. and Argentina, and fourth in Australia. Its stock soared for most of last year, climbing more than 50% and taking the family fortune to new heights. But since an abrupt drop in November 2016, when reports emerged that the company was issuing new shares at a below-market valuation, the company has struggled to rebound.