AmerisourceBergen Corporation is an American drug wholesale company that was formed by the merger of Bergen Brunswig and AmeriSource in 2001. They provide drug distribution and related services designed to reduce costs and improve patient outcomes. They also distribute a line of brand name and generic pharmaceuticals, over-the-counter (OTC) health care products and home health care supplies and equipment to health care providers throughout the United States, including acute care hospitals and health systems, independent and chain retail pharmacies, mail-order facilities, physicians, clinics and other alternate site facilities, as well as nursing and assisted living centers. They also provide pharmaceuticals and pharmacy services to long-term care, workers' compensation and specialty drug patients.
AmerisourceBergen is a market leader in pharmaceutical distribution handling about 20% of all of the pharmaceuticals sold and distributed throughout the country and ranked 10th on the Fortune 500 list for 2019 with over $153 billion in annual revenue. In terms of revenue ($79.49 billion in 2012) the firm is the largest based in Pennsylvania.