Sorry, you need to enable JavaScript to visit this website.

Each of our R&D centers specializes in a different area of scientific exploration. We have several major campuses located throughout the U.S. and U.K.

Andover, Massachusetts Research Site front entranceAndover, Massachusetts
A 70-acre site that combines state-of-the-art R&D facilities with flexible, multi-product manufacturing capabilities
Cambridge, Massachusetts Research Site buildingCambridge, Massachusetts
Global headquarters for our Center for Therapeutic Innovation (CTI), which has established locations in New York City, San Diego, and San Francisco
Groton, Connecticut Research Site front Pfizer signageGroton, Connecticut
Where nearly every one of our products are, in part, developed
La Jolla, California Research Site front entranceLa Jolla, California
Powerfully reinforcing the company's presence in the global biotechnology industry
Pearl River, New York Research Site campus aerial viewPearl River, New York
The primary location for our company’s global Vaccine Research and Development work
Sandwich, UK Research Site building frontSandwich, UK
Home of the Pharmaceutical Sciences and Global Regulatory Affairs groups
St. Louis, MO Research Site front entranceSt. Louis, MO
A 300,000 sq. ft. facility producing innovative emergency care products that serve unique needs during severe medical crises

Learn more about the process of joining a clinical trial and find a trial near you.

Go to Pfizer Clinical Trials SiteDetails
Purpose & Ideals

Clinical Trial Innovation: Putting the Patient First in Clinical Trial Design

Learn how Pfizer is making clinical trials more patient-friendly with easier enrollment, focus on patient experience, and data return initiatives.
Living & Wellbeing

How Climate Change is Affecting the Spread of Lyme Disease—and 5 Things You Need to Know About the Disease

Learn how changing climate conditions are affecting the spread of Lyme Disease and 5 facts you need to know about the disease.
Real People

Ashley Tisdale’s Alopecia Areata Journey: How the Star Found Support and Is Helping People Feel Less Alone

“It’s really hard to be vulnerable, but I’ve realized other people have alopecia areata too and have probably struggled with this like I did. So, I asked myself, ‘Why am I not talking about this?’ I should probably share what I've learned through my own journey.”