Company lists · Data refreshed September 2026

Top 25 Veterinary diagnostic laboratories based in the United States

Name: Veterinary diagnostic laboratories based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 534 companies tracked

RevenueBase identified 534 veterinary diagnostic laboratories headquartered in the United States as of September 2026 and tracks 59,583 professional contacts across them, including 9,185 with verified work emails. Houston is the largest hub.

This list covers veterinary diagnostic laboratories headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

534Companies

59,583Contacts tracked

9,185Verified emails

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The 25 largest veterinary diagnostic laboratories based in the United States

Ranked by team size

Top 25 of 534 veterinary diagnostic laboratories based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to veterinary diagnostic laboratories: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Quest Diagnostics	Partial evidence	Secaucus, NJ, United StatesHQ checked Sep 22, 2026	10001+	27,884 contacts →
	Partial evidence “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Source: RevenueBase Database · checked Sep 22, 2026
2	IDEXX	Indirect evidence	Westbrook, ME, United StatesHQ checked Sep 22, 2026	10001+	6,962 contacts →
	Indirect evidence “people, one global focus - enhancing the health and well-being of pets, people, and livestock We are passionate about what we do at IDEXX – and why wouldn’t we be?” Source: RevenueBase Database · checked Sep 22, 2026
3	Arup Laboratories	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 22, 2026	1,001-5,000	2,768 contacts →
	Partial evidence “ARUP Laboratories is a national clinical and anatomic pathology reference laboratory and a worldwide leader in innovative laboratory research and development.” Source: RevenueBase Database · checked Sep 22, 2026
4	Antech Diagnostics	Partial evidence	Fountain Valley, CA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,884 contacts →
	Partial evidence “Smarter Diagnostics.” Source: RevenueBase Database · checked Sep 22, 2026
5	Bioreference	Indirect evidence	Elmwood Park, NJ, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,610 contacts →
	Indirect evidence “For more than four decades, BioReference has built a legacy based on scientific excellence, innovation and world-class service in laboratory testing solutions.” Source: RevenueBase Database · checked Sep 22, 2026
6	Sonora Quest Laboratories Laboratory Sciences Of Arizona	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,222 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
7	Pathgroup	Indirect evidence	Brentwood, TN, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,098 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
8	Solstas LAB Partners	Partial evidence	Greensboro, NC, United StatesHQ checked Sep 22, 2026	1,001-5,000	649 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026
9	Sonic Healthcare USA	Partial evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	5,001-10,000	614 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
10	Clinical Reference Laboratory	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 22, 2026	501-1,000	457 contacts →
	Indirect evidence “CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.” Source: RevenueBase Database · checked Sep 22, 2026
11	ACM Global Laboratories	Partial evidence	Rochester, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	446 contacts →
	Partial evidence “ACM Global Laboratories, an affiliate of Rochester Regional Health in Rochester, New York, is a recognized leader global clinical trial testing services.” Source: RevenueBase Database · checked Sep 22, 2026
12	Medical Diagnostic Laboratories MDL	Strong evidence	Hamilton, NJ, United StatesHQ checked Sep 22, 2026	501-1,000	436 contacts →
	Strong evidence “Medical Diagnostic Laboratories (MDL), founded in 1997, serves primarily as a reference laboratory for Polymerase Chain Reaction (PCR) based testing to physicians, laboratories…” Source: RevenueBase Database · checked Sep 22, 2026
13	Fulgent Genetics	Partial evidence	El Monte, CA, United StatesHQ checked Sep 22, 2026	1,001-5,000	435 contacts →
	Partial evidence “Our mission is to develop flexible and affordable diagnostics and therapeutics that improve the everyday lives of those around us.” Source: RevenueBase Database · checked Sep 22, 2026
14	Mako Medical	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 22, 2026	1,001-5,000	433 contacts →
	Partial evidence “Mako Medical Laboratories, a proud member of The Health Alliance, is redefining how laboratories support patients and healthcare professionals.” Source: RevenueBase Database · checked Sep 22, 2026
15	Healthtrackrx	Partial evidence	Louisville, KY, United StatesHQ checked Sep 22, 2026	201-500	395 contacts →
	Partial evidence “HealthTrack, formerly known as HealthTrackRx, is a nationwide diagnostics company delivering next-morning molecular testing solutions for urgent care and walk-in clinics, women’s…” Source: RevenueBase Database · checked Sep 22, 2026
16	Diagnostic Laboratory Services	Indirect evidence	Aiea, HI, United StatesHQ checked Sep 22, 2026	1,001-5,000	377 contacts →
	Indirect evidence “DLS is proud to be Hawaii’s largest locally-owned clinical and anatomic pathology testing laboratory with a team of over dedicated professionals.” Source: RevenueBase Database · checked Sep 22, 2026
17	Inform Diagnostics	Partial evidence	Coppell, TX, United StatesHQ checked Sep 22, 2026	501-1,000	346 contacts →
	Partial evidence “Inform Diagnostics, a Fulgent Genetics Company, is a leading anatomic pathology laboratory trusted by clinicians throughout the U.S.” Source: RevenueBase Database · checked Sep 22, 2026
18	Accu Reference Medical LAB	Indirect evidence	Linden, NJ, United StatesHQ checked Sep 22, 2026	501-1,000	342 contacts →
	Indirect evidence “Accu Reference Medical Lab is a state-of-the-art medical testing laboratory service that provides a complete range of tests for diagnosis, screening or evaluation of diseases and…” Source: RevenueBase Database · checked Sep 22, 2026
19	Microbiologics	Indirect evidence	Saint Cloud, MN, United StatesHQ checked Sep 22, 2026	201-500	337 contacts →
	Indirect evidence “We are the world’s leading experts and go-to collaborators in biological products and services, focused on protecting the health and safety of people around the world.” Source: RevenueBase Database · checked Sep 22, 2026
20	Propath	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 22, 2026	501-1,000	255 contacts →
	Indirect evidence “ProPath, a Sonic Healthcare USA Anatomic Pathology Practice, is the largest, nationwide, fully physician-operated pathology practice in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
21	Interpath Laboratory, INC	Indirect evidence	Pendleton, OR, United StatesHQ checked Sep 22, 2026	201-500	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
22	Pathnostics	Partial evidence	Irvine, CA, United StatesHQ checked Sep 22, 2026	201-500	195 contacts →
	Partial evidence “Established in 2011 in Irvine, California, Pathnostics is a leading precision diagnostic testing and development company providing solutions for infectious disease and cancer…” Source: RevenueBase Database · checked Sep 22, 2026
23	Acutis Diagnostics	Indirect evidence	Hicksville, NY, United StatesHQ checked Sep 22, 2026	201-500	170 contacts →
	Indirect evidence “Committed professionals with an original approach to laboratory medicine.” Source: RevenueBase Database · checked Sep 22, 2026
24	Flow Health	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	501-1,000	169 contacts →
	Partial evidence “Flow Health is a leading provider of diagnostic information services, offering a wide range of diagnostic testing services.” Source: RevenueBase Database · checked Sep 22, 2026
25	Vikor Scientific	Partial evidence	Charleston, SC, United StatesHQ checked Sep 22, 2026	201-500	168 contacts →
	Partial evidence “Vikor Scientific™ is a molecular diagnostics company focused on Antibiotic Stewardship and tangible solutions for the practice of value-based medicine in the treatment of…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: veterinary diagnostic laboratories. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names veterinary diagnostic laboratories.
Partial evidence: Its own public description names part of veterinary diagnostic laboratories, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name veterinary diagnostic laboratories. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 534 veterinary diagnostic laboratories based in the United States

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Veterinary diagnostic laboratories based in the United States at a glance

As of Sep 22, 2026

15.4%Verified-email coverage

111.6Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

157

11-50

205

51-200

107

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 534 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among veterinary diagnostic laboratories, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “veterinary diagnostic laboratories”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names veterinary diagnostic laboratories), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among veterinary diagnostic laboratories, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 9,185 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names veterinary diagnostic laboratories, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many veterinary diagnostic laboratories are there based in the United States?

RevenueBase identified 534 veterinary diagnostic laboratories headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Quest Diagnostics, headquartered in Secaucus, tops this list with the largest team on record.

Which city has the most veterinary diagnostic laboratories?

Houston leads with 12 headquartered companies, followed by Dallas (7) and Irvine (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,185 verified decision-maker contacts tracked across these 534 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 Smart Search, 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.