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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
Boulder, Colorado Research Site front entranceBoulder, Colorado
An expert in small molecule drug discovery with a focus on developing innovative cancer therapeutics
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 Site
Living & Wellbeing Severe COVID-19 and the Continuing Importance of Protecting High Risk Populations The concept of "severe COVID-19" can be a frightening one. The term itself is so often misunderstood or confused with having severe symptoms of COVID. Programs & Initiatives The Future of Pharmacovigilance: Monitoring Medicine and Vaccine Safety Using AI and Other Tech Since 2014, Pfizer has used artificial intelligence to help sort through and categorize reports that people file when they experience an “adverse event.” Programs & Initiatives The Importance of Returning Clinical Trial Data to Participants Pfizer is providing participants with their own clinical trial data when an eligible trial ends via the Clinical Trial Participant Data Return Initiative.