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Home›Companies›Merck & Co.

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Merck & Co.

Rahway, NJ, United States Pharmaceutical 71,000 employees Founded 1891 MRK merck.com ↗

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18 Clinical trials

71,000 Employees

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About Merck & Co.

Merck & Co. (known as MSD outside the US and Canada) is a leading vaccines and oncology company headquartered in Rahway, New Jersey, with its major West Point, Pennsylvania site anchoring vaccine and biologics production.

Sector

Pharmaceutical

Headquarters

Rahway, NJ, United States

Founded

1891

Employees

71,000

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29 Jun 2026 · 5 min read