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About us

Our mission is simple: support our people, collaborate with our partners, do it all for our patients and populations – and continue Inventing for Life.

If you were born in the UK or own an animal, chances are that MSD is already part of your life through one of our vaccines or medicines

Who we are

We use the power of leading-edge science to save and improve lives around the world.

We are unified around our purpose

In the United States and Canada, we are known as Merck & Co., Inc., Rahway, N.J., USA, everywhere else we are known as MSD. Although we have two names globally, we are one company with one purpose.

Here in the UK, we’re helping to transform the lives of millions of patients and populations by providing innovative medicines, vaccines and services, through our partnerships with the NHS and the work of the inspiring people who make up our company.


Our people embrace the spirit of invention

Everything we do, in and out of the laboratory, is based on our deep appreciation for life and no matter our role or title, we all rise to the challenge in pursuit of better health outcomes.

Our values represent the very core of our character. They guide every decision and action we take.

We are a Top Employer


We’re proud to have been officially certified by the Top Employer Institute and been awarded the exclusive
Top Employer United Kingdom Certification for the seventh year running.

As an employer of 1,500 people in the UK, we believe that our employees are our greatest asset and are fundamental to everything we do. That’s why we are committed to developing a workforce that is diverse and talented, fostering an inclusive culture of mutual respect so that everyone can excel.

What we do

Scientific invention is at the heart of what we do, and today, we are at the forefront of pioneering science.

We run to, not from, the world’s biggest health challenges.

We focus on scientific innovation to deliver medicines and vaccines that may help millions of people around the world.

This includes helping to solve some of the world’s most urgent global health challenges, including cancer, hepatitis C, antibiotic resistance, Alzheimer’s disease, Ebola, heart disease and more.

Better, more equitable health – beyond just science

We are actively collaborating across all levels of the healthcare system to improve healthcare access and outcomes for patients across the UK.

Our UK Presence

As we continue our mission, the expansion of our significant footprint in the UK represents MSD’s commitment to the UK life sciences and our belief in the power of science to help people and animals live longer, healthier lives.

MSD has a truly cross divisional presence in the UK, including;

London – Moorgate
MSD Human Health & MRL

London – Kings Cross
MSD Research Laboratories (London Biosciences Innovation Centre – LBIC & The Francis Crick Institute)

Milton Keynes
MSD Animal Health

Looking to the future: MSD Research Laboratories, London & UK HQ

MSD has began construction on our new UK Discovery Centre and HQ, Belgrove Housein the heart of London’s Knowledge Quarter, which will host talented researchers to drive medical advances in neuroscience and immunology.

MSD Animal Health

MSD Animal Health is a research-driven company that develops, manufactures and markets a broad range of veterinary medicines and services.

We offer one of the industry’s most innovative portfolios, spanning products for the prevention, treatment and control of disease in all major farm and companion animal species.

GB-NON-09681 | July 2024