Where is Merck & Co. headquartered?
Merck & Co. is headquartered in Rahway, NJ. Its footprint includes major operating, manufacturing, commercial, R&D, laboratory, technology, clinical, or distribution hubs across the United States and international markets.
- HQ
- Rahway, NJ
- HQ address
- 126 East Lincoln Avenue, Rahway, NJ 07065
- Offices
- Rahway, NJ; Kenilworth, NJ; Upper Gwynedd, PA; Boston, MA
- Founded
- 1891
- Employees
- 72,000+
- Largest hub
- Rahway, NJ
Merck & Co. office locations
Merck & Co.'s public footprint includes headquarters and major operating hubs used for executive, commercial, clinical, manufacturing, distribution, laboratory, or technology work.
- Rahway, NJ· Headquarters
- Kenilworth, NJ· Office
- Upper Gwynedd, PA· Office
- Boston, MA· Office
- South San Francisco, CA· Office
- Dublin, Ireland· Office
- Singapore· Office
Where is Merck & Co.'s headquarters?
Merck & Co.'s headquarters is listed as Rahway, NJ, with a public headquarters address of 126 East Lincoln Avenue, Rahway, NJ 07065. Executive, investor, legal, finance, and enterprise procurement routes are usually tied to this corporate center even when the operational buyer sits elsewhere.
What other offices does Merck & Co. have?
The footprint includes Rahway, NJ, Kenilworth, NJ, Upper Gwynedd, PA, Boston, MA, South San Francisco, CA, Dublin, Ireland, Singapore. For healthcare companies, these locations often split by business-unit leadership, R&D, manufacturing, distribution, commercial teams, technology, clinical operations, laboratory operations, and international market coverage.
What Merck & Co.'s office footprint means for territory planning
Territory planning should not treat the headquarters as the only buyer location. Field events and account mapping should follow business-unit hubs, hospital or clinic markets, laboratory and manufacturing nodes, technology centers, and executive travel patterns. Time-zone coverage matters because approvals can involve stakeholders across multiple regions.
As of June 2026.Sources:Merck & Co. websiteMerck & Co. annual reportsMerck & Co. contact
Merck & Co. — frequently asked questions
