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

Living Longer with Cancer: Redefining What It Means to Survive

The sixth season of Science Will Win, Pfizer's award-winning podcast, focused on cancer. The six episodes explored the disease from every angle, from its rising incidence in younger populations to the precision medicine tools helping clinicians catch it earlier and treat it more effectively.

Pfizer graphic with colorful microscopic cells on a black background thumbnail

Pfizer's 2025 Impact Report Highlights Progress Across Patients, Planet, and Responsible Business

Here at Pfizer, we are in the business of breakthroughs, and while our focus is on making advancements that impact patients’ lives, we are also aware of our work’s broader impact on the world. Every year, we take stock of the impact our work has on the world, the environment, and people themselves in our Impact Report.

Photograph of a woman lifting a child holding a toy plane against a cloudy sky thumbnail

Multiple Myeloma: Shedding Light on a Rare but Complex Blood Cancer

Donna is more than a cancer patient: Donna is a wife, mother, grandmother, sister, and friend who has a full life outside of treatment. Her journey with multiple myeloma has revealed depths of resilience and strength that have long served her in all of those roles.

Photograph of a doctor explaining a medical diagram to a seated patient in an exam room thumbnail
Search More Stories
See More