McKesson Corporation is a publicly-traded American company that distributes pharmaceuticals and provides health information technology, medical supplies, and health management tools. The company delivers a third of all pharmaceutical products used or consumed in North America and employs over 51,000 employees. With $308.9 billion in 2024 revenue, it is the ninth-largest company by revenue in the United States and the nation's largest health care company. The company is headquartered in Irving, Texas. It is a member of the S&P 500 and New York Stock Exchange, where it is traded under the ticker symbol NYSE: MCK. McKesson provides extensive network of infrastructure for the healthcare industry and was an early adopter of technologies, including barcode scanning for distribution, pharmacy robotics, and RFID tags. The company has been named in a federal lawsuit for profiting from the opioid epidemic in the United States. Wikipedia