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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 Research Site front entrance
Andover, Massachusetts

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

Cambridge, Massachusetts Research Site building
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 Research Site front Pfizer signage
Groton, Connecticut

Where nearly every one of our products are, in part, developed

La-Jolla.webp
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 Research Site campus aerial view
Pearl River, New York

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

Sandwich, UK Research Site building front
Sandwich, UK

Home of the Pharmaceutical Sciences and Global Regulatory Affairs groups

St. Louis, MO Research Site front entrance
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 November 4, 2025
Explore the Product PipelineDownload Complete Pipeline PDF

Clinical Trials

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

Go to Pfizer Clinical Trials Site Details

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