Where our science happens

Research based on innovation is at the core of who we are and what we do. We are fearless in our drive to solve problems though scientific research and development as we create medicines and vaccines that help save and improve lives. It starts with the capabilities and expertise at our facilities, but we are open to collaboration anywhere the science leads us.

Boston, MA

Our Boston site is located at the center of this vibrant life sciences community. Here, our team focuses on discovery research in immunology, oncology, diabetes and neuroscience.

Boston, MA facility

Cambridge, MA

The team at our Cambridge location focuses on the earliest stages of discovery research — exploring the most promising areas of emerging science and technology.

Cambridge, MA facility

Dunboyne, Ireland

Dunboyne is home to our state-of-the-art biologics manufacturing facility. As our first biologics drug substance single-use commercialization facility, Dunboyne plays a pivotal role in helping our team commercialize key medicines.

London, UK

Our UK discovery and clinical teams are an established and integral part of the scientific community in London. Working side-by-side and collaboratively with academic institutions, our scientists are tackling the complexities and therapeutic challenges of some of the most devastating neurological disorders.

Rahway, NJ

For more than a century, the Rahway campus has been home to many medical breakthroughs. Our world headquarters, this is a research-focused campus that includes core chemistry and preclinical development, with world-class capabilities in biologics and synthetic chemistry. Recognized as a National Historic Chemical Landmark by the American Chemical Society, Rahway now features a state-of-the-art formulation, laboratory and experimentation (FLEx) Center designed to meet the needs of today while adapting for the needs of the future.

San Diego, CA

Located in San Diego’s high-tech innovation hub, this site is one of the newest additions to our network. The open setting allows for leading-edge innovation and collaboration among colleagues as we work to advance a data-driven precision medicine approach for treating autoimmune diseases.


Home to our headquarters in the Asia Pacific region, our extensive footprint in Singapore includes our translational medicine research center, manufacturing facilities and an IT hub dedicated to innovating and improving health care solutions for the region and across the world.

South San Francisco, CA

Our team in South San Francisco is focused on expanding our innovative research in biologics — spanning exploratory research through early clinical development.

Merck office building and research site in South San Francisco

Upper Gwynedd, PA

The Upper Gwynedd site is headquarters for our U.S. Human Health Division and home to many of our research colleagues in clinical development and regulatory affairs. As part of our sustainable goals at research and manufacturing sites, we have a broad range of solar panels at this site that provide enough power to reduce the site’s energy consumption by 14 percent.

Upper Gwynedd, PA facility

West Point, PA

Our team in West Point supports core discovery, preclinical and clinical functional areas — researching, manufacturing and testing pharmaceuticals and vaccines. This is also our largest manufacturing facility in the U.S.

West Point