Though he was once dubbed “the homeless billionaire” for his love of living out of luxury hotels, Bergggruen’s hard work traveling around the world for the Nicolas Berggruen Institute has paid off: according to Forbes, the Beverly Hills resident’s net worth of $2.3 billion makes him one of the richest men in the world.

Ron Burkle founded the private equity firm Yucaipa Companies, which invests in retail, manufacturing and distribution, after starting off as a bag boy at his father’s grocery store. He has recently been investing in start-up companies through A-Grade Investments, his venture capital fund with Ashton Kutcher and Guy Oseary, of which include SoundCloud, SeatGeek and Airbnb. He is also a partial owner of the Pittsburgh Penguins and was instrumental in ending the NHL lockout.

He may have dropped out of high school, but Murdock is doing something right if his current #190 rank on the Forbes 400 list is any indication. He made headlines in 2013 when he sold the Dole Food Company’s most noted holding – 98% of the Hawaiian island of Lana’i – to fellow billionaire Larry Ellison. Other investments include the leasing firm Flexi-Van, cancer drug development NovaRx and Duke University’s MURDOCK Study program.