We invent for life
Using the power of leading-edge science to save and improve lives around the world.
Our presence in the UK goes back a long way
We’ve been an integral part of the scientific community here for over 100 years. MSD globally has been at the forefront of research, bringing forward medicines, vaccines and innovative health solutions for the world’s most challenging human and animal diseases.
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.
Watch our video to learn more about us.
Development has begun on our £1 billion, world leading discovery centre and headquarters in the heart of London’s Knowledge Quarter.
A diverse workforce makes us a more innovative and agile company — and one better attuned to the needs of our customers, health care providers and patients.
Supporting society, people and communities around the world is fundamental to our long-term success and our mission to operate responsibly every day.
As 'One MSD', we are dedicated to preserving and improving the health, well-being and performance of animals and the people who care for them.