- Business
- Pfizer Inc. is a global biopharmaceutical company that discovers, develops, manufactures and commercializes innovative medicines and vaccines for patients in developed and emerging markets. Founded in 1849 by Charles Pfizer and Charles Erhart in Brooklyn, New York, the company is headquartered in New York City, New York. Pfizer’s core portfolio spans internal medicine, oncology, vaccines, inflammation and immunology, and selected established products, with offerings that include prescription medicines, preventive vaccines, biologics, small molecules and combination therapies. Its commercial products and development programs address cardiovascular and metabolic diseases, obesity, respiratory diseases, infectious diseases, cancer, immunology and other serious conditions. The company continues to advance a broad late-stage and early-stage pipeline, including programs in vaccines, oncology and internal medicine, and reported 95 total pipeline candidates as of August 4, 2026. Pfizer has recently expanded through strategic transactions, including the completion of its acquisition of Metsera in November 2025, which added obesity and cardiometabolic assets such as MET-097i, MET-233i and an oral GLP-1 candidate, and strengthened its internal medicine franchise. In 2026, Pfizer also entered a strategic global licensing and collaboration agreement with Innovent Biologics for 12 early-stage cancer medicines, including ADCs and multispecific antibodies, further reinforcing its oncology pipeline. The company operates globally across the United States, Europe and other international markets, and conducts research, development, manufacturing and commercial operations through its integrated biopharmaceutical platform and wholly owned subsidiaries.