Pfizer Inc. is a global pharmaceutical and biopharmaceutical company, headquartered in New York City. It is one of the world's largest pharmaceutical companies, and is engaged in the discovery, development, manufacture, and marketing of prescription and over-the-counter medicines, vaccines
From Wikipedia
Pfizer Inc. is an American multinational pharmaceutical and biotechnology corporation headquartered at The Spiral in Manhattan, New York City. Founded in 1849 in New York by German entrepreneurs Charles Pfizer and Charles F. Erhart, Pfizer is one of the oldest pharmaceutical companies in North America.