Being in operation since 1913, TETRA Medical Supply Corporation is a manufacturer and distributor of medical supplies. Based in Niles, Ill., it primarily focuses on product lines, including bandages, dressings, orthopedic soft goods and hot and cold therapy products. The firm secures business opportunities through contracts with Federal and State government agencies, hospital group purchasing organization (GPO s) and national/regional dealers and distributors. Its portfolio of customers include hospitals, surgeons, podiatrists, chiropractors, departments of correction, sports rehabilitation, professional sports teams, occupational and physical therapists, massage therapists, fire departments, industrial offices and many more.