Research Sites

Main Research and Development Centers

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

A 70-acre site that combines state-of-the-art R&D facilities with flexible, multi-product manufacturing capabilities.

Cambridge, Massachusetts

Located in Kendall Square, our Cambridge site interlaces Pfizer’s R&D capability with the densest biomedical community in the world.

Groton, Connecticut

As the company’s largest R&D facility, Groton is involved in the development of nearly every Pfizer medicine and vaccine.

La Jolla, California

With more than 500,000 square feet of state-of-the-art facilities, this is where our scientists discover and develop cutting-edge cancer therapies using advanced laboratories and equipment.

Pearl River, New York

The primary location for our company’s global Vaccine Research and Development work.

Sandwich, UK

Home of the Pharmaceutical Sciences and Global Regulatory Affairs groups.

St. Louis, MO

A 300,000 sq. ft. facility producing innovative emergency care products that serve unique needs during severe medical crises.

Pipeline Snapshot as of May 5, 2026

Explore the Product Pipeline Download Complete Pipeline PDF

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Clinical Trials

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

Go to Pfizer Clinical Trials Site

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