Company lists · Data refreshed September 2026

Top 25 Medical laboratory services based in the United States

Name: Medical laboratory services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,156 companies tracked

RevenueBase identified 1,156 company matches for medical laboratory services associated with the United States as of September 2026 and tracks 117,744 professional contacts across them, including 30,275 with verified work emails. Houston is the largest hub.

This list covers company matches for medical laboratory services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

1,156Companies

117,744Contacts tracked

30,275Verified emails

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The 25 largest medical laboratory services based in the United States

Ranked by team size

Top 25 of 1,156 company matches for medical laboratory services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Labcorp	Exact match	Burlington, NC, United StatesHQ recorded Sep 17, 2026	10001+	38,427 contacts →
	Exact match “Clear and confident health care decisions begin with questions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Quest Diagnostics	Exact match	Secaucus, NJ, United StatesHQ recorded Sep 17, 2026	10001+	27,884 contacts →
	Exact match “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Beckman Coulter Diagnostics	Exact match	Brea, CA, United StatesHQ recorded Sep 17, 2026	10001+	10,069 contacts →
	Exact match “A global leader in advanced diagnostics, Beckman Coulter has challenged convention to elevate the diagnostic laboratory’s role in improving patient health for more than 80 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Arup Laboratories	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,768 contacts →
	Exact match “ARUP Laboratories is a national clinical and anatomic pathology reference laboratory and a worldwide leader in innovative laboratory research and development.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Bioreference	Exact match	Elmwood Park, NJ, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,610 contacts →
	Exact match “For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Clinical Pathology Laboratories	Exact match	Austin, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,528 contacts →
	Exact match “Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Examone, A Quest Diagnostics Company	Exact match	Lenexa, KS, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,369 contacts →
	Exact match “ExamOne has provided a robust portfolio of laboratory, paramedical and data solutions since 1972, giving it a great deal of understanding about the needs of life insurance and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Sonora Quest Laboratories Laboratory Sciences Of Arizona	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,222 contacts →
	Exact match “Sonora Quest Laboratories, a subsidiary of Laboratory Sciences of Arizona, is an Arizona-based joint venture between Banner Health and Quest Diagnostics (NYSE: DGX) that makes up…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Pathgroup	Exact match	Brentwood, TN, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,098 contacts →
	Exact match “Founded in 1965, PathGroup is a premier provider of anatomic, clinical and molecular pathology services, as well as one of the largest providers of women’s health services in the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Tricore Reference Laboratories	Exact match	Albuquerque, NM, United StatesHQ recorded Sep 17, 2026	1,001-5,000	675 contacts →
	Exact match “TriCore is a community-based, independent, clinical reference laboratory that provides full-service, state-of-the-art laboratory tests to health care professionals and their…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Solstas LAB Partners	Exact match	Greensboro, NC, United StatesHQ recorded Sep 17, 2026	1,001-5,000	649 contacts →
	Exact match “Solstas Lab Partners has become one of the nation’s fastest-growing and largest full-service laboratories because we understand that our business is more than just test results.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Alverno Laboratories	Exact match	Hammond, IN, United StatesHQ recorded Sep 17, 2026	1,001-5,000	619 contacts →
	Exact match “Alverno Laboratories manages 32 hospital laboratories and provides laboratory services to two free standing emergency departments and thousands of physician offices and other…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Sonic Healthcare USA	Exact match	Dallas, TX, United StatesHQ recorded Sep 17, 2026	5,001-10,000	614 contacts →
	Exact match “Sonic Healthcare USA is a subsidiary of Sonic Healthcare Limited, one of the world's largest medical diagnostics companies, providing laboratory services to medical practitioners…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	HNL LAB Medicine	Exact match	Allentown, PA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	563 contacts →
	Exact match “Our Vision is To create a future where every person has the clarity and insight to live healthier.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Microbac Laboratories, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 17, 2026	501-1,000	494 contacts →
	Exact match “Companies of all sizes partner with Microbac to test the quality, safety, and performance of their products and operations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	American Health Associates	Exact match	Davie, FL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	459 contacts →
	Exact match “American Health Associates is the largest provider of clinical laboratory services to long term care in the United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Clinical Reference Laboratory	Exact match	Lenexa, KS, United StatesHQ recorded Sep 17, 2026	501-1,000	457 contacts →
	Exact match “CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	ACM Global Laboratories	Exact match	Rochester, NY, United StatesHQ recorded Sep 17, 2026	1,001-5,000	446 contacts →
	Exact match “ACM Global Laboratories, an affiliate of Rochester Regional Health in Rochester, New York, is a recognized leader global clinical trial testing services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Mako Medical	Exact match	Raleigh, NC, United StatesHQ recorded Sep 17, 2026	1,001-5,000	433 contacts →
	Exact match “Mako Medical Laboratories, a proud member of The Health Alliance, is redefining how laboratories support patients and healthcare professionals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Sekisui Diagnostics	Exact match	Burlington, MA, United StatesHQ recorded Sep 17, 2026	201-500	424 contacts →
	Exact match “Headquartered in Burlington, MA, for 40 years SEKISUI Diagnostics has been committed to helping improve the lives of patients by providing innovative medical diagnostics to…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Compunet Clinical Laboratories	Exact match	Moraine, OH, United StatesHQ recorded Sep 17, 2026	501-1,000	420 contacts →
	Exact match “We are a clinical diagnostic laboratory offering over accessible, responsive, and reliable lab tests for physicians, hospitals, patients, and employers in our communities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	PAML	Exact match	Spokane, WA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	412 contacts →
	Exact match “Pathology Associates Medical Laboratories (PAML) is a full-service medical reference laboratory located in Spokane, WA.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Diagnostic Laboratory Services	Exact match	Aiea, HI, United StatesHQ recorded Sep 17, 2026	1,001-5,000	377 contacts →
	Exact match “DLS is proud to be Hawaii’s largest locally-owned clinical and anatomic pathology testing laboratory with a team of over dedicated professionals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Sunrise Medical Laboratories	Exact match	Hicksville, NY, United StatesHQ recorded Sep 17, 2026	501-1,000	350 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Inform Diagnostics	Exact match	Coppell, TX, United StatesHQ recorded Sep 17, 2026	501-1,000	346 contacts →
	Exact match “Inform Diagnostics, a Fulgent Genetics Company, is a leading anatomic pathology laboratory trusted by clinicians throughout the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “medical laboratory services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,156 medical laboratory services based in the United States

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Medical laboratory services based in the United States at a glance

As of Sep 17, 2026

25.7%Verified-email coverage

101.9Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

369

11-50

413

51-200

245

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,156 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “medical laboratory services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 30,275 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “medical laboratory services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many medical laboratory services are there based in the United States?

RevenueBase identified 1,156 company matches for medical laboratory services associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Labcorp tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most medical laboratory services?

Houston leads with 30 company records, followed by New York (18) and Dallas (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 30,275 professional contacts with verified work emails tracked across these 1,156 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.