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About our company

We invent for a more hopeful future.

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

For 130 years, Merck (known as MSD outside of the U.S. and Canada) 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.

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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 around the world.

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The team that guides our work

Our leaders focus on our mission to save and improve lives around the world. This is the foundation of everything we do.

Our company by the numbers



Our culture

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Our research

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Our giving
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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.

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Our past and our future

For 130 years, we’ve focused on not just the next quarter, but the next quarter century.

Get to know us through our stories

Learn about the heartbeat of our company.

View our stories

Our second-quarter 2021 financial results

Merck announced second-quarter 2021 sales from continuing operations (excluding Organon) of $11.4 billion, 22% above second-quarter 2020. Excluding the impact from foreign exchange, sales grew 19%. The company anticipates full-year 2021 revenue range to be between $46.4 billion and $47.4 billion, including a positive impact from foreign exchange of less than 2%. Take a look […]

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Next: Our second-quarter 2021 financial results

Fighting for health equity from inside the health care industry

Carmen Villar, vice president, social business innovation, always defended the underdog – now she leads a team solely focused on reducing health disparities

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Next: Fighting for health equity from inside the health care industry

Supporting the next generation of diverse scientists

Meet some of the Merck mentors and former mentees helping make the Scientist Mentoring & Diversity Program a success

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Next: Supporting the next generation of diverse scientists

7 things you probably didn’t know about Merck

From Thomas Edison to Meryl Streep, these interesting tidbits about our company may surprise you

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Next: 7 things you probably didn’t know about Merck

Improving medical care in the Black community with family health histories

Why creating a family health history tree can help build trust and empower you to be your own voice in the doctor’s office

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Next: Improving medical care in the Black community with family health histories


Our areas of focus

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


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

Learn about oncology


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.

Learn about vaccines

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.

Learn about infectious diseases


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 recognized.

Learn more about our response to COVID-19

Cardio-metabolic disorders

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

Learn about cardio-metabolic disorders

Discovery & development

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

Learn about our work

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Merck Animal Health

Merck 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.

Business partnerships and public policies keep our patients in focus

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Business development & licensing

We work with partners, from early-stage science to clinical-stage programs, to deliver new therapies to patients.

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Policies & positions

We support public policies that advance the interests of patients, improve public health and promote access to medicines and innovation.