Merck & Co., Inc.

About Merck & Co., Inc.

Merck & Co., Inc., operating as MSD outside the United States and Canada, is a global biopharmaceutical company that discovers, develops, manufactures and markets prescription medicines, vaccines, biologic therapies and animal health products. Its research focuses on oncology, infectious diseases, vaccines, hospital acute care, immunology and neuroscience. Founded in 1891 and headquartered in Rahway, New Jersey, the company operates in more than 140 countries, employing over 70,000 people worldwide and selling products through its global network of subsidiaries and distributors.