Rehak Creative Services Inc. is a Houston-based marketing communications company specializing in business-to-business, high-technology and corporate advertising. Their roster of clients has included ADP, Chevron Phillips, Halliburton, Hewlett-Packard, Shell Oil, TransCanada and U.S. Concrete. In 2001, Rehak Creative Services earned more Summit Creative Awards than any other agency in the world. Rehak Creative Services currently ranks as one of the top 20 advertising agencies in Houston. Rehak Creative Services was founded by award-winning author, professor and creative director Bob Rehak.