Ambu Inc.: Ambu Expands Single-Use Endoscopy Contracts with Two U.S. Group Purchasing Organizations With the expansion of two existing GPO contracts, Ambu's position in single-use endoscopy continues to strengthen. Ambu Inc., the world leader in single-use endoscopes, announced today that it has been granted national single-use endoscopy contract expansions with two major U.S. Group Purchasing Organizations (GPOs). With these expansions, Ambu is now on contract with all four major GPOs in the U.S. with either a full or partial portfolio of single-use endoscopy categories available for the cus...