Stepan Company is a manufacturer of specialty chemicals headquartered in Northbrook, Illinois. The company was founded in 1932 by Alfred C. Stepan, Jr., and has approximately 2,000 employees. It is currently run by his grandson, F. Quinn Stepan, Jr. The company describes itself as the largest global merchant manufacturer of anionic surfactants, which are used to enhance the foaming and cleaning capabilities of detergents, shampoos, toothpastes, and cosmetics. Wikipedia