1940David Koch, American engineer, businessman, and philanthropist (died 2019)[†]
David Hamilton Koch was an American businessman, political activist, philanthropist, and chemical engineer. In 1970, he joined the family business: Koch Industries, the second largest privately held company in the United States. He became president of the subsidiary Koch Engineering in 1979 and became a co-owner of Koch Industries in 1983. Koch served as an executive vice president of Koch Industries until he retired due to health issues in 2018.
