Zekelman Family

Net Worth:
$3.46 billion
(▲63.2% from 2017)

Rich 100 rank: #24
Change in rank from 2017: ▲21
Major company holdings: Atlas Tube
Location: Windsor, Ont. & Bloomfield Hills, Mich.

The Zekelman family runs the largest independent steel tube manufacturer in North America, and they want everyone to know it: Last year the clan changed the name of the company from JMC Steel Group to Zekelman Industries, Inc. The firm churns out more than 2.5 million tonnes of steel products each year—primarily pipes, large structural steel elements and electrical conduits used in construction. Recently, however, Barry Zekelman, the CEO and executive chairman of Zekelman Industries, also dabbled in biotech, co-financing a Boston cancer research startup called CureMeta. “It’s definitely a business venture, but if I never made a penny off it and cured cancer, I’d be ecstatic,” he told the Windsor Star in 2016.

Updated Thursday, November 9, 2017