Koch Industries is an American multinational corporation based in Wichita, Kansas. It is the second-largest privately held company in the United States and is involved in a variety of industries, including oil and gas. Founded by Fred C. Koch in 1940, Koch Industries has grown to become one of the largest companies in the world, with annual revenues of over $110 billion. The company is owned and operated by the Koch family, who are known for their conservative political views.