Pfizer is a research-based healthcare company, founded 160 years ago in 1849, headquartered in New York.

Pfizer Hong Kong is the country office of Pfizer, established in 1956, primarily responsible for the sales, distribution and promotion of Pfizer's products in Hong Kong and Macau. In Hong Kong, Pfizer also has its Asia Regional Office, as well as the Asian Logistics Centre (ALC).

As the world's premier pharmaceutical company, Pfizer discovers and develops new ways to treat and prevent life-threatening and debilitating illnesses, and manufactures and markets leading medicines for humans and animals, in different parts of the world. As of January 2008, Pfizer's pipeline of medicines cover 11 therapeutic areas, including Cardiovascular Disease, Metabolic and Endocrine Disease, Inflammation, Infectious Disease, Gastrointestinal Disease and Hepatology Disease, Dermatology, Oncology, Neuroscience, Ophthalmology, Genitourinary Disease, Pain and Allergy, and Respiratory Disease.