Where is Quest Diagnostics headquartered?
Quest Diagnostics is headquartered in Secaucus, NJ. Its footprint includes major operating, manufacturing, commercial, R&D, laboratory, technology, clinical, or distribution hubs across the United States and international markets.
- HQ
- Secaucus, NJ
- HQ address
- 500 Plaza Drive, Secaucus, NJ 07094
- Offices
- Secaucus, NJ; Lenexa, KS; Chantilly, VA; Marlborough, MA
- Founded
- 1967
- Employees
- 55,000+
- Largest hub
- Secaucus, NJ
Quest Diagnostics office locations
Quest Diagnostics's public footprint includes headquarters and major operating hubs used for executive, commercial, clinical, manufacturing, distribution, laboratory, or technology work.
- Secaucus, NJ· Headquarters
- Lenexa, KS· Office
- Chantilly, VA· Office
- Marlborough, MA· Office
- San Juan Capistrano, CA· Office
- Tampa, FL· Office
- Dallas, TX· Office
Sources:Quest Diagnostics websiteQuest Diagnostics annual reports
Where is Quest Diagnostics's headquarters?
Quest Diagnostics's headquarters is listed as Secaucus, NJ, with a public headquarters address of 500 Plaza Drive, Secaucus, NJ 07094. 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 Quest Diagnostics have?
The footprint includes Secaucus, NJ, Lenexa, KS, Chantilly, VA, Marlborough, MA, San Juan Capistrano, CA, Tampa, FL, Dallas, TX. 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 Quest Diagnostics'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:Quest Diagnostics websiteQuest Diagnostics annual reportsQuest Diagnostics contact
Quest Diagnostics — frequently asked questions
