Eduardo Saverin cofounded Facebook with Harvard classmate Mark Zuckerberg in 2004. Now a venture capitalist, he still derives most of his wealth from his small but valuable stake in Facebook. In 2016, he launched venture fund B Capital, with BCG and Bain Capital veteran Raj Ganguly. The fund has $1.4 billion in assets under management. A Brazilian native, Saverin has been a Singapore resident since renouncing his U.S. citizenship in 2012 ahead of Facebook's IPO.