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Quest Diagnostics
AddedFeb 19, 2024
UpdatedJun 18, 2026
Quest Diagnostics

Quest Diagnostics

Public

Quest Diagnostics: A national medical research company providing comprehensive diagnostic testing and services.

HQ
Secaucus, NJ, US
Founded
1967
Overview
Compare
Fundraising
Employees
News
Website

Founded in 1967, Quest Diagnostics is a leading medical research company dedicated to providing comprehensive diagnostic testing, information, and services. With a core mission to empower better health through actionable insights, the company operates a national network of full-service laboratories, rapid response laboratories, and patient service centers. Quest Diagnostics offers a wide range of services including esoteric, routine medical, drugs of abuse, and non-hospital-based anatomic pathology testing. Their market focus spans patients, healthcare professionals, health insurers, and business professionals.

Notable affiliated individuals include Steve Rusckowski, who has been instrumental in the company's strategic direction. Key investors include institutional shareholders such as Vanguard Group and BlackRock. Quest Diagnostics has achieved significant milestones, including pioneering advancements in diagnostic testing and expanding its service reach through innovative solutions like Quest Mobile™ for in-home sample collection. The company's impact is profound, providing critical health insights that aid in disease prevention, diagnosis, and treatment for millions of patients annually.

Quest Diagnostics - Quick Facts

When was Quest Diagnostics founded?

Quest Diagnostics was founded in 1967.

Where is Quest Diagnostics' headquarters located?

Quest Diagnostics' headquarters is located in Secaucus, NJ, US.

When was Quest Diagnostics' last funding round?

Quest Diagnostics' most recent funding round was for $750M (USD) in October 2023.

How much has Quest Diagnostics raised to-date?

As of Oct 30, 2023, Quest Diagnostics has raised a total of $750M (USD).

How many employees does Quest Diagnostics have?

Quest Diagnostics has 49,000 employees as of Feb 6, 2024.

Quest Diagnostics - Classification

Industry
  • Professional Service Companies
Ownership
  • Public
Technology
  • Biotech
Geographic Exposure
  • Global
Revenue
  • Transactional
Customer
  • Consumers
  • Enterprise
Main Product
  • Medical Testing
Tags
  • Healthtech
Unique IDs
  • secCik: 0001022079
  • ticker: DGX
NAICS
  • 621000Ambulatory Health Care Services
  • 621500Medical and Diagnostic Laboratories
  • 621510Medical and Diagnostic Laboratories
  • 621512Diagnostic Imaging Centers
  • 620000Health Care and Social Assistance
SIC
  • 8070Medical And Dental Laboratories
  • 8071Medical Laboratories
  • 8000Health Services
ISIC
  • 8690Other human health activities
Show 22 more industry codes
NAICS
  • 320000Manufacturing
  • 325400Pharmaceutical and Medicine Manufacturing
  • 540000Professional, Scientific, and Technical Services
  • 621511Medical Laboratories
  • 330000Manufacturing
  • 325000Chemical Manufacturing
  • 541000Professional, Scientific, and Technical Services
  • 623000Nursing and Residential Care Facilities
  • 541800Advertising, Public Relations, and Related Services
  • 325410Pharmaceutical and Medicine Manufacturing
  • 541890Other Services Related to Advertising
SIC
  • 3900Miscellaneous Manufacturing Industries
  • 5000Wholesale Trade-durable Goods
  • 6000Depository Institutions
  • 7300Business Services
  • 5040Professional And Commercial Equipment And Supplies
  • 7310Advertising
  • 8040Offices And Clinics Of Other Health Practitioners
  • 5047Medical, Dental, And Hospital Equipment And Supplies
  • 7319Advertising, Not Elsewhere Classified
  • 8049Offices And Clinics Of Health Practitioners, Not Elsewhere Classified
ISIC
  • 7310Advertising