Companies
Merck & Co., Inc.
Employees

How many employees work at Merck?

Q: How many employees work at Merck?

Merck & Co., Inc. has 107,407 employees, according to Revelio Labs workforce intelligence data. The year-over-year growth rate is NaN%.

Merck & Co., Inc. has 107,407 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 1.2%.

Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025

About Merck

At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities. For more information, visit www.merck.com. This site is intended for residents of the United States and Canada and their territories only.

As of September 2025

Merck
workforce metrics

Headcount

107.4k

Avg. Salary

$96k

Tenure

5.9yr

Growth Rate

1.2%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Merck annual worldwide employee count from 2023 to 2025.

Merck total number of employees in 2025 was 107,680.769, a 1.2% increase from 2024.
Merck total number of employees in 2024 was 105,764.553, a 2.2% increase from 2023.
Merck total number of employees in 2023 was 103,243.301, a 1.9% increase from 2022.