=6) Charles Koch: $42.9 billion
Charles Koch is one half of the most affluent sibling partnership in the world. Koch owns 42 per cent of Kansas-based industrial firm Koch Industries where he serves as chairman and chief executive. Koch Industries owns firms that are involved in refinery, chemicals and financial trading, among many others.
5) Larry Ellison – Net Worth: $54.3 billion
Larry Ellison is the largest shareholder in Oracle and the fifth richest person in the world. According to Forbes’ list, Ellison is worth $54.3 billion. He was named the third wealthiest man in America last year.
Aside from his focus on Oracle and several other corporations he has stakes in, including Salesforce.com, NetSuite, Quark Biotechnology, and Astex Pharmaceuticals, Ellison has been recognized for his commitment to philanthropic efforts, and was also one of the billionaires in 2010 to sign the “The Giving Pledge,” a campaign that emboldens the wealthiest people in the world to make a commitment to give most of their wealth to philanthropic causes. The campaign was made public by Bill Gates and Warren Buffett.