1. Thomson Family
Net Worth: $41.14 billion
Change from 2017 Ranking: ▲5.2%
Major company holdings: Thomson Reuters, Woodbridge Co.
Canada’s richest family maintains its spot at the top of the list on the strength of the company that bears its name, Thomson Reuters. After a rough patch early in 2016, the company has been slowly gaining back ground. By late summer 2017, Thomson Reuters’ shares had hit an all-time high on the New York and Toronto Stock exchanges.
The family suffered a major loss this year with the death of their matriarch, Marilyn Thomson, who had been a grounding figure for her three children and, in many ways, inspired their ambition. "She was tenacious and determined and would never take no for an answer,” said Peter, the youngest sibling, in a eulogy to his mother in June.