Leo Burnett Company, Inc., otherwise known as Leo Burnett Worldwide, Inc., is an American globally active advertising company, founded in 1935 in Chicago by Leo Burnett. Part of Publicis Groupe, Leo Burnett is one of the largest agency networks with 85 offices and 9,000+ employees. In January 2016, Leo Burnett Worldwide named Rich Stoddart CEO. Stoddart replaced Tom Bernardin.