Pfizer Inc. is an American multinational pharmaceutical and biotechnology corporation headquartered on 42nd Street in Manhattan, New York City. The company was established in 1849 in New York by two German entrepreneurs, Charles Pfizer and his cousin Charles F. Erhart.

Pfizer, Inc., one of the world’s largest research-based pharmaceutical and biomedical companies, dedicated to discovering, developing, manufacturing, and marketing prescription medications for both humans and animals. Pfizer develops and produces medicines and vaccines for immunology, oncology, cardiology, endocrinology, and neurology. The company has several blockbuster drugs or products that each generates more than US$1 billion in annual revenues.

Pfizer’s most prominent products include the antidepressant Zoloft, the erectile-dysfunction drug Viagra, and the antidepressant and antianxiety drug Xanax.

Pfizer was a component of the Dow Jones Industrial Average stock market index from 2004 to August 2020. It has major manufacturing facilities in India, China, Japan, Ireland, Italy, Belgium, Germany, Singapore, and the US. The company provides its products in North America, South America, Asia-Pacific, Australia, Europe, Africa and the Middle East.

Pfizer has developed and launched several products in response to the COVID-19 pandemic, including the Pfizer–BioNTech COVID-19 vaccine and Paxlovid. As of early May 2021, Pfizer and BioNTech had manufactured at least 430 million vaccine doses, which have been distributed to 91 countries and territories.

In the Global 2000 2022 list of Forbes, Pfizer was ranked 43^rd of the largest companies in the world.

According to Wikipedia; Forbes