Quest Diagnostics Overview
- Year Founded
-
1967

- Status
-
Public
- Employees
-
56,000

- Stock Symbol
-
DGX

- 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
Website
www.questdiagnostics.comCorporate Office
- 500 Plaza Drive
- Secaucus, NJ 07094
- United States
Corporate Office
- 500 Plaza Drive
- Secaucus, NJ 07094
- United States
Quest Diagnostics Timeline
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 |
Quest Diagnostics Valuation & Funding
Deal Type | Date | Amount | Valuation/ EBITDA |
Post-Val | Status | Debt |
---|
Quest Diagnostics Comparisons
Industry
Financing
Details
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 |
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 |
Quest Diagnostics Signals
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 |
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

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 |
|
||
Sharecare | 07-Jun-2019 | Completed |
|
||
Clinical Genomics | 01-Jun-2018 | Completed |
|
||
Lemonaid Health | 18-Sep-2017 | Completed |
|
||
Clinical Genomics | 23-Mar-2016 | Later Stage VC | Completed |
|
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 |
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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