Company lists · Data refreshed September 2026

Top 25 Pathology lab services based in the United States

RevenueBase identified 1,267 company matches for pathology lab services associated with the United States as of September 2026 and tracks 169,580 professional contacts across them, including 38,964 with verified work emails. Houston is the largest hub.

This list covers company matches for pathology lab 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 20, 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 20, 2026 How this list was built
1,267Companies
169,580Contacts tracked
38,964Verified emails
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The 25 largest pathology lab services based in the United States

Ranked by team size
Top 25 of 1,267 company matches for pathology lab services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSanta Clara, CA, United StatesHQ recorded Sep 20, 202610001+48,455 contacts →

Exact match

“Agilent customers are finding new ways to treat cancer, ensure food, water, air, and medicine quality and safety, discover new drug treatments, research infectious diseases, and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBurlington, NC, United StatesHQ recorded Sep 20, 202610001+38,427 contacts →

Exact match

“Clear and confident health care decisions begin with questions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSecaucus, NJ, United StatesHQ recorded Sep 20, 202610001+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 20, 2026 · View company records in RevenueBase
4Exact matchBrea, CA, United StatesHQ recorded Sep 20, 202610001+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 20, 2026 · View company records in RevenueBase
5Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 20, 20261,001-5,0002,768 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 20, 2026 · View company records in RevenueBase
6Exact matchElmwood Park, NJ, United StatesHQ recorded Sep 20, 20261,001-5,0001,610 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 20, 2026 · View company records in RevenueBase
7Exact matchAustin, TX, United StatesHQ recorded Sep 20, 20261,001-5,0001,528 contacts →

Exact match

“Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLenexa, KS, United StatesHQ recorded Sep 20, 20261,001-5,0001,369 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 20, 2026 · View company records in RevenueBase
9Exact matchPhoenix, AZ, United StatesHQ recorded Sep 20, 20261,001-5,0001,222 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 20, 2026 · View company records in RevenueBase
10Exact matchBrentwood, TN, United StatesHQ recorded Sep 20, 20261,001-5,0001,098 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 20, 2026 · View company records in RevenueBase
11Exact matchNashville, TN, United StatesHQ recorded Sep 20, 2026501-1,000690 contacts →

Exact match

“Founded in 1990, Aegis Sciences Corporation is a forensic toxicology and healthcare laboratory that provides science-driven drug testing and consulting services based in…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchAlbuquerque, NM, United StatesHQ recorded Sep 20, 20261,001-5,000675 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 20, 2026 · View company records in RevenueBase
13Exact matchGreensboro, NC, United StatesHQ recorded Sep 20, 20261,001-5,000649 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 20, 2026 · View company records in RevenueBase
14Exact matchHammond, IN, United StatesHQ recorded Sep 20, 20261,001-5,000619 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 20, 2026 · View company records in RevenueBase
15Exact matchDallas, TX, United StatesHQ recorded Sep 20, 20265,001-10,000614 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 20, 2026 · View company records in RevenueBase
16Exact matchAllentown, PA, United StatesHQ recorded Sep 20, 20261,001-5,000563 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 20, 2026 · View company records in RevenueBase
17Exact matchPittsburgh, PA, United StatesHQ recorded Sep 20, 2026501-1,000494 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 20, 2026 · View company records in RevenueBase
18Exact matchDavie, FL, United StatesHQ recorded Sep 20, 20261,001-5,000459 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 20, 2026 · View company records in RevenueBase
19Exact matchLenexa, KS, United StatesHQ recorded Sep 20, 2026501-1,000457 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 20, 2026 · View company records in RevenueBase
20Exact matchRochester, NY, United StatesHQ recorded Sep 20, 20261,001-5,000446 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 20, 2026 · View company records in RevenueBase
21Exact matchHamilton, NJ, United StatesHQ recorded Sep 20, 2026501-1,000436 contacts →

Exact match

“Medical Diagnostic Laboratories (MDL), founded in 1997, serves primarily as a reference laboratory for Polymerase Chain Reaction (PCR) based testing to physicians, laboratories…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchRaleigh, NC, United StatesHQ recorded Sep 20, 20261,001-5,000433 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 20, 2026 · View company records in RevenueBase
23Exact matchBurlington, MA, United StatesHQ recorded Sep 20, 2026201-500424 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 20, 2026 · View company records in RevenueBase
24Exact matchMoraine, OH, United StatesHQ recorded Sep 20, 2026501-1,000420 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 20, 2026 · View company records in RevenueBase
25Exact matchSpokane, WA, United StatesHQ recorded Sep 20, 20261,001-5,000412 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 20, 2026 · View company records in RevenueBase

Showing 25 of 1,267 pathology lab services based in the United States

See the full list, filter by size, metro and specialty, and access 38,964 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Pathology lab services based in the United States at a glance

As of Sep 20, 2026
23.0%Verified-email coverage
133.8Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
389
11-50
462
51-200
269
201-500
76
501-1,000
23
1,001-5,000
33
5,001-10,000
2
10001+
11

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 1,267 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 “pathology lab 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 38,964 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 20, 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 “pathology lab services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pathology lab services are there based in the United States?

RevenueBase identified 1,267 company matches for pathology lab 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?

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

Which city has the most pathology lab services?

Houston leads with 31 company records, followed by Irvine (20) and Tampa (20).

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 38,964 professional contacts with verified work emails tracked across these 1,267 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 20, 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.