MRK

Merck & Co (known as MSD outside the United States and Canada) is a global, research‑driven biopharmaceutical company that discovers, develops, manufactures and markets prescription medicines, vaccines, biologic therapies and animal health products. Its core businesses span human pharmaceuticals—including oncology, infectious disease, cardiovascular and diabetes treatments—as well as a large animal‑health division that provides vaccines and medicines for livestock and companion animals. Operating in the broader healthcare and pharmaceutical sector, Merck is among the world’s largest drug makers, recognized for a strong pipeline of innovative therapies and a leading position in vaccines and oncology. The company’s business model relies on extensive R&D investment, a worldwide sales network, and partnerships with governments, health systems and veterinary professionals to bring its products to market.