ACS, Inc. is a small, closely held corporation dedicated solely to inventing and manufacturing diagnostic controls, reagents and tests. Since its founding in 1978, ACS has earned an excellent reputation as an OEM manufacturer. Our in-depth knowledge of manufacturing extremely stable protein & enzyme products either in lyophilized or liquid format has allowed us to move into a retail market and compete successfully with giants in the field. Our coagulation products are only the beginning of our expertise. If you know us only as the manufacturer of ACT-Trol™ (US Patent # 5,939,325), be sure to browse through our comprehensive listing of products.