AmerisourceBergen Corporation is one of the world's largest pharmaceutical services companies, with operations in the United States, Canada and the United Kingdom. Servicing both healthcare providers and pharmaceutical manufacturers in the pharmaceutical supply channel, AmerisourceBergen provides drug distribution and related services designed to reduce costs and improve patient outcomes. AmerisourceBergen distributes a comprehensive offering of brand name and generic pharmaceuticals, over-the-counter healthcare products, home healthcare supplies and equipment, and related services to a wide variety of healthcare providers located in the United States and Canada, including acute care hospitals and health systems, independent and chain retail pharmacies, institutional pharmacies, mail order facilities, physicians, medical clinics, alternate site facilities, and other customers. AmerisourceBergen handles about 20% of all of the pharmaceuticals sold and distributed throughout the U.S.