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Quest Diagnostics Incorporated Company Profile

NYSE: DGXHealth CareMedical SpecialitiesUSD

230.81+3.75 (+1.65%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

After hours: 230.81 0.00%

Quest Diagnostics at a glance

Quest Diagnostics Incorporated (NYSE: DGX) is a Medical Specialities company in the Health Care sector headquartered in Secaucus, NJ. Quest Diagnostics is led by Mr. James E. Davis and employs about 46,000 people. At a market capitalization of $25.06 billion, it is considered a large-cap company.

DGX is a member of the SP500. Its SEC Central Index Key (CIK) is 0001022079, which identifies the company's filings on EDGAR.

Summary generated from market data by MetaCap's automated system. Methodology

What does Quest Diagnostics do?

Quest Diagnostics Incorporated provides diagnostic testing and services in the United States. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It also provides services under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers commercial clinical laboratories, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals. In addition, the company offers risk assessment services for the life insurance industry; healthcare IT healthcare providers and payers; testing and medical director services at hospital laboratories; test offerings in cardiometabolic and endocrine; cancer; clinical drug monitoring and toxicology; infectious disease, including autoimmune; neurology diagnostics, including Alzheimer's disease; and women's health, such as prenatal genetic; workplace drug testing, testing urine, hair, and oral fluid specimens services; and employer population health services, including biometric screenings, flu shots, and related preventative services. Further, it provides population health solutions; extended care services; develops in vitro diagnostic tests; laboratory diagnostic information and digital health connectivity systems; underwriting support services, including data gathering, paramedical examinations, and clinical laboratory testing and analytics; and national specimen collection and health data solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.

Business description based on the company's public filings.

Company information

Legal name
Quest Diagnostics Incorporated
Ticker
NYSE: DGX
Industry
Medical Specialities
CEO
Mr. James E. Davis
Employees
46,000
Headquarters
500 Plaza Drive, Secaucus, NJ, United States
Phone
973 520 2700
Market cap
$25.06B
SEC CIK
0001022079
Latest annual report
10-K · Feb 26, 2026

Index membership

Companies similar to Quest Diagnostics

DGX peer companies
CompanyPrice% ChgMarket capCompare
LHLabcorp Holdings Inc.314.20+0.71%$25.48Bvs DGX
GHGuardant Health Inc.165.56-1.65%$22.22Bvs DGX
CNCCentene Corporation64.54-0.69%$31.88Bvs DGX
MOHMolina Healthcare Inc195.76+0.48%$10.22Bvs DGX
OSCROscar Health Inc. Class A33.10+0.58%$10.22Bvs DGX
ILMNIllumina Inc.264.57-1.19%$39.95Bvs DGX
HSICHenry Schein Inc.84.63+1.16%$9.43Bvs DGX
CAICaris Life Sciences Inc.27.50+1.48%$7.77Bvs DGX

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