Quest Diagnostics Overview

  • Year Founded
  • 1967

Year Founded

  • Status
  • Public

  • Employees
  • 56,000

Employees

  • Stock Symbol
  • DGX

Stock Symbol

  • Investments
  • 78

  • Share Price
  • $179.72
  • (As of Monday Closing)

Quest Diagnostics General Information

Description

Quest Diagnostics Inc is a leading independent provider of diagnostic testing, information, and services in the us. 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
Corporation
Corporate Office
  • 500 Plaza Drive
  • Secaucus, NJ 07094
  • United States
+1 (800)
Primary Industry
Laboratory Services (Healthcare)
Other Industries
Other Healthcare Services
Stock Exchange
NYS
Corporate Office
  • 500 Plaza Drive
  • Secaucus, NJ 07094
  • United States
+1 (800)

Quest Diagnostics Timeline

2022202320242025
Financing RoundCaptured Employee CountEstimated Employee Growth

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Quest Diagnostics Stock Performance

As of 23-Jun-2025, Quest Diagnostics’s stock price is $179.72. Its current market cap is $20.1B with 112M shares.

(As of Monday Closing)

Stock Price Previous Close 52 wk Range Market Cap Shares Average Volume EPS
$179.72 $179.43 $135.47 - $182.38 $20.1B 112M 1.24M $8.01

Quest Diagnostics Financials Summary

As of 31-Mar-2025, Quest Diagnostics has a trailing 12-month revenue of $10.2B.

In Thousands,
USD
TTM 31-Mar-2025 FY 2024 31-Dec-2024 FY 2023 31-Dec-2023 FY 2022 31-Dec-2022
EV 25,433,489 23,156,266 20,385,537 21,870,555
Revenue 10,158,000 9,872,000 9,252,000 9,883,000
EBITDA 1,927,000 1,869,000 1,721,000 1,810,000
Net Income 897,000 871,000 854,000 946,000
Total Assets 15,797,000 16,153,000 14,022,000 12,837,000
Total Debt 6,570,000 7,087,000 5,498,000 4,714,000
Public Fundamental Data provided by Morningstar, Inc. disclaimer

Quest Diagnostics Valuation & Funding

Deal Type Date Amount Valuation/
EBITDA
Post-Val Status Debt

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Quest Diagnostics Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Quest Diagnostics Inc is a leading independent provider of diagnostic testing, information, and services in the us. The
Laboratory Services (Healthcare)
Secaucus, NJ
56,000 As of 2024

Burlington, NC
 

Fort Myers, FL
 
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Quest Diagnostics Competitors (17)

One of Quest Diagnostics’s 17 competitors is Laboratory Corporation of America, a Private Debt Financed company based in Burlington, NC.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Laboratory Corporation of America Private Debt Financed Burlington, NC
NeoGenomics Laboratories Corporation Fort Myers, FL
Primex Clinical Laboratories Corporation CA
American Esoteric Laboratories Formerly VC-backed Memphis, TN
Dynacare Healthcare Services Formerly PE-Backed Brampton, Canada
You’re viewing 5 of 17 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-231961-S Saliva container Active 10-May-2024
CA-231962-S Saliva collector Active 30-Jan-2024
US-20250123288-A1 Methods for the simultaneous detection and quantification of insulin, proinsulin, proinsulin metabolic intermediates, c-peptide, and c-peptide variants by mass spectrometry Pending 11-Oct-2023
EP-4537110-A1 Quantification of lipoprotein subfractions by ion mobility Pending 09-Jun-2022
AU-2023248408-A1 Detection of insulin-like growth factor-2 variants by mass spectrometry Pending 07-Apr-2022 G01N33/6848
To view Quest Diagnostics’s complete patent history, request access »

Quest Diagnostics Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

Majestic Referring Domains

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Quest Diagnostics Investments & Acquisitions (78)

Quest Diagnostics’s most recent deal was a Secondary Transaction - Private with Fresenius Medical Care for . The deal was made on 04-Mar-2025.

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
Fresenius Medical Care 04-Mar-2025 Secondary Transaction - Private Hospitals/Inpatient Services
Spectra Laboratories (Select Assets in Milpitas, California) 21-Feb-2025 Corporate Asset Purchase Buildings and Property
University Hospitals Health System (Outreach Laboratory Services Business) 27-Jan-2025 Merger/Acquisition Laboratory Services (Healthcare)
OhioHealth (Select Assets of Outreach Laboratory Services) 14-Oct-2024 Corporate Asset Purchase Buildings and Property
Lab Assets of Allina Health System Based in Minneapolis, United States 16-Sep-2024 Corporate Asset Purchase Buildings and Property
You’re viewing 5 of 78 investments and acquisitions. Get the full list »

Quest Diagnostics ESG

Risk Overview

Risk Rating

Updated April, 04, 2025

21.65 | Med Risk

Risk Scale

A lower score indicates better sustainability

Negl

0-10

Low

10-20

Med

20-30

High

30-40

Severe

40+

Exposure

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

Management

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.

Global

Covered Companies

of 14,673

Rank

Percentile

Healthcare

Industry

of 564

Rank

Percentile

Medical Services

Subindustry

of 93

Rank

Percentile

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

Quest Diagnostics Exits (14)

Quest Diagnostics’s most recent exit was on 03-Dec-2020 from Base (Healthcare Technology Systems). The exit was categorized as with 14 buyers.

Company Name Exit Date Exit Type Exit Size Status Buyers
Base (Healthcare Technology Systems) 03-Dec-2020 Completed
  • 14 buyers
Sharecare 07-Jun-2019 Completed
  • 2 buyers
Clinical Genomics 01-Jun-2018 Completed
  • 6 buyers
Lemonaid Health 18-Sep-2017 Completed
  • 10 buyers
Clinical Genomics 23-Mar-2016 Later Stage VC Completed
  • 2 buyers
You’re viewing 5 of 14 exits. Get the full list »

Quest Diagnostics Affiliates

Subsidiaries (16)

Name Industry Location Year Founded
Haystack Oncology Baltimore, MD 2021
Pack Health Birmingham, AL 2013
Blueprint Genetics Espoo, Finland 2012
Med Fusion Lewisville, TX 2010
Cleveland HeartLab Cleveland, OH 2009
You’re viewing 5 of 16 affiliates. Get the full list.  »

Quest Diagnostics FAQs

  • When was Quest Diagnostics founded?

    Quest Diagnostics was founded in 1967.

  • Where is Quest Diagnostics headquartered?

    Quest Diagnostics is headquartered in Secaucus, NJ.

  • What is the size of Quest Diagnostics?

    Quest Diagnostics has 56,000 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 23-Jun-2025 the stock price of Quest Diagnostics is $179.72.

  • What is the current market cap of Quest Diagnostics?

    The current market capitalization of Quest Diagnostics is $20.1B.

  • What is Quest Diagnostics’s current revenue?

    The trailing twelve month revenue for Quest Diagnostics is $10.2B.

  • Who are Quest Diagnostics’s competitors?

    Laboratory Corporation of America, NeoGenomics Laboratories, Primex Clinical Laboratories, American Esoteric Laboratories, and Dynacare Healthcare Services are some of the 17 competitors of Quest Diagnostics.

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

    Quest Diagnostics’s EPS for 12 months was $8.01.

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