Born in Kansas, United States on November 1, 1935. American businessman and philanthropist, Charles Koch has an estimated net worth of $51.3 billion as of October 2018. With his brothers Bill and, David Koch, they are the second richest family in America. He is the co-owner, chairman of the board, and CEO of Koch Industries which include oil refining and chemical, pollution control equipment and technologies, polymers and fibers, minerals, fertilizers, commodity trading and services, forest and consumer products, and ranching. Before succeeding and expanding the multi-billion-dollar firm, Koch was employed at Arthur D. Little, Inc. following his college graduation. In 1961, he joined his father’s business Rock Island Oil & Refining Company which he then co-inherited, became the president, and renamed the company in 1967. Koch Industries, the new alias of the firm in endeavor to honor his father, has gradually risen to become the second-biggest private company in America, with over $41.3 billion in revenue in 2014, under his wing. His philanthropic aid has been primary towards education. He has donated millions to charities. He won the William E. Simon Prize for Philanthropic Leadership for his charitable provision. In 1972, Koch married his wife Liz and the couple has two children.