Charles Koch

Net Worth: $50.5 billion
Company: Koch Industries
Country: USA
When Koch Industries started, it was focused on oil refining and chemicals. It eventually expanded its business model to include minerals, fertilizers, ranching and polymers, and fibers, among others. A 2010 Forbes survey revealed that Koch Industries was the second-largest privately held company in terms of revenue, and because of that, Charles Koch became the 9th richest person in the world in 2014. As of 2019, he is estimated to be worth $505 billion and the 11th richest worldwide.

Koch is married to his wife, Liz Koch, since 1972, and they have two children together, who stand to inherit their wealth. He is a very private person who rarely gives interviews, with a house in Wichita, Kansas, which is most likely installed with the latest home security system. Koch and his brother David Koch were listed among the most influential people in the world for their commitment to free-market ideas.