 Under Kitty Hach's management, the company developed an employee base of over 900 people and became one of the top women owned businesses in the United States.Kathryn Hach-Darrow was president, chief operating officer, and CEO of the Hach company.After Clifford's death in 1990, Kitty was named Hach Co.'s chairman and CEO and her son Bruce assumed the role of president.