Stanton, Calif. - based ORCO Block Co., Inc., kept pace with the burgeoning concrete block industry and quietly grew into one of its leaders. Over the years, ORCO literally has provided the foundation on which much of Southern California is built to become a major seller of concrete block. ORCO also has become one of the top-ten concrete block manufacturers in the nation. It produces more than 500 stock items and maintains an ongoing emphasis on product research and development, quality control testing and support of technical studies. Its progressive management believes in re-investing profits back into the company.