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About MSD

We invent for a more hopeful future.

We aspire to be the premier research-intensive biopharmaceutical company in the world

For over 130 years, MSD has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives.

We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships.

Today, we continue to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases, such as HIV and Ebola, and emerging animal diseases.

Watch highlights of our discoveries and commitments from the start of our company to today.

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The heart of our mission

We believe corporate responsibility is about our health, social, environmental and economic impact on people and communities in Ireland and around the world.

Our company by the numbers



Culture & Values

research and development investment in 2020 across the globe

Our research
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Culture & values

Our values are driven by a desire to improve life

We’ve built a culture that embraces scientific excellence, operates with the highest standards of integrity, expands access to our products and employs a diverse workforce that values collaboration.

Our areas of focus

Through innovation and scientific excellence, we deliver vaccines and medicines that may help millions of people around the world.

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Our mission is to deliver innovations that extend and improve the lives of people with cancer.

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Vaccines are one of the greatest public health success stories – and we’ve been discovering, developing and delivering vaccines to help prevent disease for over 100 years.

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Infectious diseases

We play an important role in discovering and developing innovative medicines and vaccines to treat and prevent infectious diseases, including HIV and Ebola.

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Cardio-metabolic disorders

We are determined to find solutions for the most serious chronic health challenges, such as cardiovascular disease and diabetes.

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Discovery & development

We are pushing the boundaries in research where we can make the greatest difference, now and in the future.

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As a company dedicated to saving and improving lives, we have a special responsibility to help in the fight against COVID-19. We’ve been fully committed to developing an effective response to the COVID-19 pandemic since it was first recognised.

Get to know MSD Ireland

Learn about the different areas that make up our company.

MSD Ireland - An overview

MSD Ireland - Our sites

MSD Ireland - Human Health

MSD Ireland - Animal Health