Company lists · Data refreshed September 2026

Top 25 Clinical microbiology laboratories based in the United States

Name: Clinical microbiology 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 16, 2026 438 companies tracked

RevenueBase identified 438 clinical microbiology laboratories headquartered in the United States as of September 2026 and tracks 46,308 professional contacts across them, including 6,154 with verified work emails. Houston is the largest hub.

This list covers clinical microbiology 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 16, 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 16, 2026 86% judged on-target in blind review

438Companies

46,308Contacts tracked

6,154Verified emails

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The 25 largest clinical microbiology laboratories based in the United States

Ranked by team size

Top 25 of 438 clinical microbiology laboratories based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clinical microbiology 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	Indirect evidence	Secaucus, NJ, United StatesHQ checked Sep 16, 2026	10001+	27,884 contacts →
	Indirect evidence “Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes.” Source: RevenueBase Database · checked Sep 16, 2026
2	Clinical Pathology Laboratories	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,528 contacts →
	Strong evidence “Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Source: RevenueBase Database · checked Sep 16, 2026
3	Sonora Quest Laboratories Laboratory Sciences Of Arizona	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,222 contacts →
	Partial 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 16, 2026
4	Nelson Labs	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	501-1,000	775 contacts →
	Partial evidence “Nelson Labs is a global leader in microbiological and analytical chemistry testing and advisory services for the medical device and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 16, 2026
5	Solstas LAB Partners	Partial evidence	Greensboro, NC, United StatesHQ checked Sep 16, 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 16, 2026
6	Microbac Laboratories, INC	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 16, 2026	501-1,000	494 contacts →
	Indirect evidence “Companies of all sizes partner with Microbac to test the quality, safety, and performance of their products and operations.” Source: RevenueBase Database · checked Sep 16, 2026
7	Clinical Reference Laboratory	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 16, 2026	501-1,000	457 contacts →
	Partial evidence “CRL was originally founded as Enzyme Technologies in 1979 with our focus on clinical research and development.” Source: RevenueBase Database · checked Sep 16, 2026
8	ACM Global Laboratories	Strong evidence	Rochester, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	446 contacts →
	Strong 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 16, 2026
9	Medical Diagnostic Laboratories MDL	Partial evidence	Hamilton, NJ, United StatesHQ checked Sep 16, 2026	501-1,000	436 contacts →
	Partial 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 16, 2026
10	Mako Medical	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 16, 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 16, 2026
11	PAML	Partial evidence	Spokane, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	412 contacts →
	Partial evidence “Pathology Associates Medical Laboratories (PAML) is a full-service medical reference laboratory located in Spokane, WA.” Source: RevenueBase Database · checked Sep 16, 2026
12	Diagnostic Laboratory Services	Partial evidence	Aiea, HI, United StatesHQ checked Sep 16, 2026	1,001-5,000	377 contacts →
	Partial 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 16, 2026
13	Sunrise Medical Laboratories	Indirect evidence	Hicksville, NY, United StatesHQ checked Sep 16, 2026	501-1,000	350 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
14	Accu Reference Medical LAB	Indirect evidence	Linden, NJ, United StatesHQ checked Sep 16, 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 16, 2026
15	Microbiologics	Indirect evidence	Saint Cloud, MN, United StatesHQ checked Sep 16, 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 16, 2026
16	Pathology Laboratories, INC	Partial evidence	Toledo, OH, United StatesHQ checked Sep 16, 2026	201-500	312 contacts →
	Partial evidence “Established in Toledo, Ohio in 1946, Pathology Laboratories, Inc.(PathLabs) fostered a reputation among the area’s private medical practitioners as a provider of prompt, reliable…” Source: RevenueBase Database · checked Sep 16, 2026
17	American Esoteric Laboratories	Partial evidence	Memphis, TN, United StatesHQ checked Sep 16, 2026	1,001-5,000	276 contacts →
	Partial evidence “AEL provides clinical information to aid customers throughout the Mid-South in the diagnosis, prevention and treatment of disease.” Source: RevenueBase Database · checked Sep 16, 2026
18	Deibel Laboratories	Partial evidence	Niles, IL, United StatesHQ checked Sep 16, 2026	201-500	242 contacts →
	Partial evidence “Deibel Laboratories started in 1967 by Dr.” Source: RevenueBase Database · checked Sep 16, 2026
19	Eurofins Viracor	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 16, 2026	201-500	233 contacts →
	Indirect evidence “It’s so much more than a specimen.” Source: RevenueBase Database · checked Sep 16, 2026
20	Interpath Laboratory, INC	Indirect evidence	Pendleton, OR, United StatesHQ checked Sep 16, 2026	201-500	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
21	Medtox Laboratories	Strong evidence	New Brighton, MN, United StatesHQ checked Sep 16, 2026	501-1,000	215 contacts →
	Strong evidence “MEDTOX Laboratories contains a full-service clinical laboratory as well as a SAMHSA-certified drug testing laboratory.” Source: RevenueBase Database · checked Sep 16, 2026
22	Pathnostics	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	201-500	195 contacts →
	Indirect 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 16, 2026
23	Wisconsin Diagnostic Laboratories	Strong evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	501-1,000	194 contacts →
	Strong evidence “Wisconsin Diagnostic Laboratories, located in Milwaukee, is a full service clinical laboratory servicing physicians and patients throughout the Midwest region and beyond.” Source: RevenueBase Database · checked Sep 16, 2026
24	Acutis Diagnostics	Indirect evidence	Hicksville, NY, United StatesHQ checked Sep 16, 2026	201-500	170 contacts →
	Indirect evidence “Committed professionals with an original approach to laboratory medicine.” Source: RevenueBase Database · checked Sep 16, 2026
25	Flow Health	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	501-1,000	169 contacts →
	Indirect evidence “Flow Health is a leading provider of diagnostic information services, offering a wide range of diagnostic testing services.” Source: RevenueBase Database · checked Sep 16, 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: clinical microbiology 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 clinical microbiology laboratories.
Partial evidence: Its own public description names part of clinical microbiology laboratories, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical microbiology 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 438 clinical microbiology laboratories based in the United States

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Clinical microbiology laboratories based in the United States at a glance

As of Sep 16, 2026

13.3%Verified-email coverage

105.7Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

121

11-50

168

51-200

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 438 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 clinical microbiology 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 “clinical microbiology 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 clinical microbiology 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 clinical microbiology 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, 6,154 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 16, 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 clinical microbiology 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 clinical microbiology laboratories are there based in the United States?

RevenueBase identified 438 clinical microbiology 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 clinical microbiology laboratories?

Houston leads with 13 headquartered companies, followed by Irvine (9) and Los Angeles (7).

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 6,154 verified decision-maker contacts tracked across these 438 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 16, 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.