Sorry, you need to enable JavaScript to visit this website.
  1. Home
  2. Science
  3. 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 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.

Aerial view of Groton, Connecticut research site
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.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 May 5, 2026
Explore the Product PipelineDownload Complete Pipeline PDF
pipeline animated GIF lines loading in 3D

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

Related Articles

Podcast Highlights Pfizer Foundation’s Mission to Improve Breast Cancer Outcomes

For over 75 years, the Pfizer Foundation, a charitable organization, has worked toward the mission of helping build healthier communities around the world.

Event graphic with three speaker headshots on a dark blue global-themed background thumbnail

Science & Innovation

Not Quite Out of the Woods: Risk for Lyme Disease Prevails in Suburban Environments

Encounters with infected ticks that can cause Lyme disease can happen doing routine activities around the yard, and common outdoor activities in your everyday life can put you at heightened risk for tick bites and, in turn, contracting Lyme disease.

Upfront boy playing in backyard with dog thumbnail

What is Non-Muscle Invasive Bladder Cancer?

According to recent research, bladder cancer is the 12th most common type of cancer worldwide. Of these cases, doctors stage (referring to the process of how far the cancer has progressed) about 75% as non-muscle invasive bladder cancer (NMIBC).

Bladder cancer image
Search More Stories
See More