Citizens for a Sound Economy (CSE) (1984–2004) was a conservative political group operating in the United States. It was established in 1984 by Charles and David Koch of Koch Industries. Ron Paul was appointed as the first chairman of the organization. The CSE described itself as "hundreds of thousands of grassroots citizens dedicated to (1) free markets and limited government, and (2) the highest level of personal involvement in public policy activism."

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.