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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
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
Science & Innovation

A New Road to Migraine Relief

Migraine, a debilitating neurological disorder, affects over a billion people globally. The cause of migraine remains an active area of research.
Purpose & Ideals

Global Health Fellows: Partnering to Strengthen Health Systems

At Pfizer, we’re driven by our Purpose—to deliver breakthroughs that change patients’ lives.
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.