Quest Diagnostics: brands it owns and its ownership tree
Quest Diagnostics (NYSE: DGX) is a publicly listed company headquartered in Secaucus, New Jersey, United States that owns 6 consumer brands across 2 categories.[1]
Quest Diagnostics is a United States provider of diagnostic information services, running clinical laboratories and patient service centres and testing for physicians, hospitals, employers and insurers. Its 10-K says its services are mostly delivered under the Quest Diagnostics name, with AmeriPath, Dermpath Diagnostics, ExamOne and Quanum as other brands, and in 2024 it extended into Canada by buying LifeLabs.
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brands owned
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2
categories
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0
acquisitions recorded
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0
divestitures recorded
Company facts
- Legal name
- Quest Diagnostics Incorporated
- Type
- publicly listed company · see all publicly listed company owners
- Headquarters
- 🇺🇸 Secaucus, New Jersey, United States
- Tickers
- NYSE: DGX
- SEC CIK
- 0001022079
- Website
- www.questdiagnostics.com
- Last verified
- · 1 sources
Quest Diagnostics in numbers
- Quest Diagnostics owns 6 consumer brands tracked here across 2 top-level categories; the largest is healthcare & pharma with 5 brands.[1]
- 1 of its brands originated outside United States.
Everything Quest Diagnostics owns
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Full-screen interactive tree → · Download as infographic
Brand portfolio by category
Technology (1)
Recent changes to this record
Frequently asked questions
What brands does Quest Diagnostics own?
Quest Diagnostics owns 6 consumer brands tracked here, including ExamOne, Haystack Oncology, LifeLabs, Quanum, Dermpath Diagnostics and AmeriPath.
Is Quest Diagnostics an American company?
Yes. Quest Diagnostics is headquartered in Secaucus, New Jersey, United States.
Who owns Quest Diagnostics?
Quest Diagnostics is a publicly listed company owned by its shareholders; it trades as DGX on the NYSE.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Quest Diagnostics Incorporated Annual Report on Form 10-K filed 2026-02-26 — SEC EDGAR, SEC Form 10-K, published 26 February 2026; retrieved 14 October 2026.
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