Pfizer Limited is the principal UK subsidiary of Pfizer Inc. 
The company is divided into three divisions, which work closely together to help people and animals live longer and healthier lives.

Worldwide Pharmaceutical Operations (WPO)

Based at Walton Oaks, Surrey, the Worldwide Pharmaceutical Operations works with customers, including the NHS, to provide a wide range of medicines to the UK healthcare market. Pfizer markets as wide a range of medicines - some of them are life savers, while others improve the quality of life for millions of people.  They are used to treat diseases and conditions in so many diverse fields, such as heart disorders, cancer, raised blood pressure, high cholesterol and sexual health.

Pfizer Animal Health (PAH)

Based at Walton Oaks, Surrey, Pfizer Animal Health applies the same level of sales and marketing expertise as our human pharmaceutical business. Pfizer Animal Health focuses on medicines and vaccines for livestock and companion animals. With its premier position in the UK market, the company discovers, develops and markets a very wide range of animal medicines, including vaccines, antibiotics and both internal and external parasiticides for farm livestock, horses and family pets. Our product line and geographic scope are unmatched in the industry, supporting every major animal species in more than 140 countries