Quest Diagnostics Overview

  • Year Founded
  • 1967

Year Founded

  • Status
  • Public

  • Employees
  • 48,000


  • Stock Symbol
  • DGX

Stock Symbol

  • Investments
  • 74

  • Share Price
  • $146.01
  • (As of Friday Closing)

Quest Diagnostics General Information


Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk assessment services, and information technology solutions.

Contact Information

Formerly Known As
Corning Clinical Laboratories, Metropolitan Pathology Laboratory, Corning Clinical Laboratories Inc
Ownership Status
Publicly Held
Financing Status
Primary Industry
Laboratory Services (Healthcare)
Other Industries
Other Healthcare Services
Stock Exchange
Corporate Office
  • 500 Plaza Drive
  • Secaucus, NJ 07094
  • United States
+1 (973) 000-0000

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Quest Diagnostics Stock Performance

(As of Friday Closing)

Stock Price Previous Close 52 wk Range Market Cap Shares Average Volume EPS
$146.01 $146.84 $119.59 - $150.59 $16.2B 111M 923K $7.53

Quest Diagnostics Financials Summary

In Thousands,
TTM 31-Mar-2024 FY 2023 31-Dec-2023 FY 2022 31-Dec-2022 FY 2021 31-Dec-2021
EV 19,659,248 20,385,537 21,870,555 25,005,962
Revenue 9,287,000 9,252,000 9,883,000 10,788,000
EBITDA 1,727,000 1,721,000 1,810,000 3,158,000
Net Income 846,000 854,000 946,000 1,995,000
Total Assets 13,954,000 14,022,000 12,837,000 13,611,000
Total Debt 5,352,000 5,498,000 4,714,000 4,773,000
Public Fundamental Data provided by Morningstar, Inc. disclaimer

Quest Diagnostics Valuation & Funding

Deal Type Date Amount Valuation/
Post-Val Status Debt

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Quest Diagnostics Comparisons

HQ Location
Total Raised
Post Valuation
Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The com
Laboratory Services (Healthcare)
Secaucus, NJ
48,000 As of 2023
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Burlington, NC
00000 As of 0000
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0000000000 00000000
Fort Myers, FL
0000 As of 0000
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Quest Diagnostics Competitors (13)

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Laboratory Corporation of America Private Debt Financed Burlington, NC 00000 00.000 000000000 00.000
NeoGenomics Laboratories Corporation Fort Myers, FL 0000 00000 000000000 00000
Interpace Biosciences Private Debt Financed Parsippany, NJ 000 000.00 000000000 000.00
Dynacare Formerly PE-Backed Brampton, Canada 0000 000.00 000000&0
Sonora Quest Laboratories Corporate Backed or Acquired Tempe, AZ 0000 0000000000 0
You’re viewing 5 of 13 competitors. Get the full list »

Quest Diagnostics Patents

Quest Diagnostics Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
CA-3240142-A1 Methods for detecting inherited mutations using multiplex gene specific pcr Pending 07-Dec-2021 00000000
EP-4329937-A1 Warning system for a decapping/capping system Pending 27-Apr-2021 00000000
US-20240207858-A1 Warning system for a decapping/capping system Pending 27-Apr-2021 00000000
US-20220299524-A1 Identification and quantitation of insulin-like growth factor-i variants by mass spectrometry Pending 19-Mar-2021 00000000000 0
CA-3212218-A1 Identification and quantitation of insulin-like growth factor-i variants by mass spectrometry Pending 19-Mar-2021 G01N33/6848
To view Quest Diagnostics’s complete patent history, request access »

Quest Diagnostics Executive Team (69)

Name Title Board Seat
James Davis President, Chief Executive Officer and Chairman
Sam Samad Chief Financial Officer & Executive Vice President
Ruth Clements Vice President and General Manager, East Region
Kristie Dolan General Manager Oncology Franchise
Alan Myers General Manager Southeast Region
You’re viewing 5 of 69 executive team members. Get the full list »

Quest Diagnostics Board Members (20)

Name Representing Role Since
Denise Morrison MetLife Board Member, Member of Audit and Risk Committee and Chair of Compensation Committee 000 0000
Gail Wilensky Ph.D Self Board Member, Chairman of Quality and Compliance and Committee Member of Audit & Finance and Governance 000 0000
Gary Pfeiffer Quest Diagnostics Board member 000 0000
James Davis Quest Diagnostics President, Chief Executive Officer and Chairman 000 0000
Robert Carter Self Board Member 000 0000
You’re viewing 5 of 20 board members. Get the full list »

Quest Diagnostics Signals

Growth Rate

0.80% Weekly
Weekly Growth 0.80%, 93rd %
-35.5%. 530%

Size Multiple

219x Median
Size Multiple 219x, 100th %ile
0.00x 0.95x. 413Kx

Key Data Points

Twitter Followers


Similarweb Unique Visitors


Majestic Referring Domains


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Quest Diagnostics Investments & Acquisitions (74)

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
OhioHealth (Select Assets of Outreach Laboratory Services) 10-Jul-2024 000000000 Buildings and Property 00000 000
LifeLabs 03-Jul-2024 0000000000 00000 Laboratory Services (Healthcare) 00000 000
Lab Assets of Allina Health System Based in Minneapolis, United States 28-Jun-2024 000000000 Buildings and Property
PathAI (Select Assets) 11-Jun-2024 000000000 Buildings and Property 0000 0000
Freenome 15-Feb-2024 Later Stage VC 00000 Decision/Risk Analysis 0000 0000
You’re viewing 5 of 74 investments and acquisitions. Get the full list »

Quest Diagnostics Subsidiaries (15)

Company Name Industry Location Founded
Haystack Oncology Decision/Risk Analysis Baltimore, MD 2021
Pack Health Other Healthcare Services Birmingham, AL 0000
Blueprint Genetics Other Healthcare Services Espoo, Finland 0000
Med Fusion Laboratory Services (Healthcare) Lewisville, TX 0000
Cleveland HeartLab Drug Discovery Cleveland, OH 0000
You’re viewing 5 of 15 subsidiaries. Get the full list »

Quest Diagnostics ESG

Risk Overview

Risk Rating

Updated May, 31, 2024

20.32 | Med Risk

Risk Scale

A lower score indicates better sustainability












Exposure refers to the extent to which a company is exposed to different material ESG issues



Management is related to actions taken to manage ESG issues


Peers Analysis

Peer performance insights compare the company’s ESG performance to the performance of selected peers to help inform future ESG decisions and drive internal performance improvements.


Covered Companies

00 of 16,216






00 of 643




Medical Services


00 of 111




To view Quest Diagnostics’s complete esg history, request access »

Quest Diagnostics Exits (11)

Company Name Exit Date Exit Type Exit Size Status Buyers
Sharecare 07-Jun-2019 000000000 Completed
  • 2 buyers
Lemonaid Health 18-Sep-2017 00000 00000 00 0000 Completed
  • 10 buyers
Q2 Solutions 31-Mar-2015 00000 0000000 Completed
  • 2 buyers
Summit Health (Novi) 21-Apr-2014 000000000000000000 Completed
  • 00000 00000000000
OralDNA Labs 01-May-2009 Merger/Acquisition Completed
You’re viewing 5 of 11 exits. Get the full list »

Quest Diagnostics FAQs

  • When was Quest Diagnostics founded?

    Quest Diagnostics was founded in 1967.

  • Who is the CEO of Quest Diagnostics?

    James Davis is the CEO of Quest Diagnostics.

  • Where is Quest Diagnostics headquartered?

    Quest Diagnostics is headquartered in Secaucus, NJ.

  • What is the size of Quest Diagnostics?

    Quest Diagnostics has 48,000 total employees.

  • What industry is Quest Diagnostics in?

    Quest Diagnostics’s primary industry is Laboratory Services (Healthcare).

  • Is Quest Diagnostics a private or public company?

    Quest Diagnostics is a Public company.

  • What is Quest Diagnostics’s stock symbol?

    The ticker symbol for Quest Diagnostics is DGX.

  • What is the current stock price of Quest Diagnostics?

    As of 19-Jul-2024 the stock price of Quest Diagnostics is $146.01.

  • What is the current market cap of Quest Diagnostics?

    The current market capitalization of Quest Diagnostics is $16.2B.

  • What is Quest Diagnostics’s current revenue?

    The trailing twelve month revenue for Quest Diagnostics is $9.3B.

  • Who are Quest Diagnostics’s competitors?

    Laboratory Corporation of America, NeoGenomics Laboratories, Interpace Biosciences, Dynacare, and Sonora Quest Laboratories are some of the 13 competitors of Quest Diagnostics.

  • What is Quest Diagnostics’s annual earnings per share (EPS)?

    Quest Diagnostics’s EPS for 12 months was $7.53.

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