115. Sam Zell
The forefather of the modern real estate investment trust, Zell chairs 5 public companies, including Equity Residential, the nation’s largest apartment REIT. Lately he’s been looking for opportunities outside the U.S. A proponent of what he calls “intelligent immigration,” Zell is an investor in a cross-border airport terminal opened in 2015 that connects San Diego and the Tijuana International Airport in Mexico. Zell’s memoir, Am I Being Too Subtle?, was published in May.