Company lists · Data refreshed September 2026

Top 25 Microbiology laboratories based in the United States

Name: 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 20, 2026 791 companies tracked

RevenueBase identified 791 microbiology laboratories headquartered in the United States as of September 2026 and tracks 58,820 professional contacts across them, including 10,013 with verified work emails. Houston is the largest hub.

This list covers 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 20, 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 20, 2026 86% judged on-target in blind review

791Companies

58,820Contacts tracked

10,013Verified emails

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The 25 largest microbiology laboratories based in the United States

Ranked by team size

Top 25 of 791 microbiology laboratories based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to 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 20, 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 20, 2026
2	IDEXX	Indirect evidence	Westbrook, ME, United StatesHQ checked Sep 20, 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 20, 2026
3	Pace Analytical Services	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,228 contacts →
	Indirect evidence “Pace® Science and Technology Company makes the world a safer, healthier place.” Source: RevenueBase Database · checked Sep 20, 2026
4	Eurofins Lancaster Laboratories	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,638 contacts →
	Partial evidence “Eurofins Lancaster Laboratories is one of the largest commercial contract laboratories in the world providing comprehensive laboratory services in the pharmaceutical…” Source: RevenueBase Database · checked Sep 20, 2026
5	Nelson Labs	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 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 20, 2026
6	Emsl Analytical, INC	Partial evidence	Cinnaminson, NJ, United StatesHQ checked Sep 20, 2026	501-1,000	719 contacts →
	Partial evidence “As the nation's leading environmental testing firm, EMSL's network of nationwide laboratories has been providing quality analytical services since 1981.” Source: RevenueBase Database · checked Sep 20, 2026
7	IEH Laboratories And Consulting Group	Indirect evidence	Lake Forest Park, WA, United StatesHQ checked Sep 20, 2026	1,001-5,000	651 contacts →
	Indirect evidence “IEH is an international lab & consulting services company, offering a comprehensive portfolio of lab testing services and consultation across multiple industries.” Source: RevenueBase Database · checked Sep 20, 2026
8	Solstas LAB Partners	Partial evidence	Greensboro, NC, United StatesHQ checked Sep 20, 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 20, 2026
9	Biofire Diagnostics, LLC	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 2026	1,001-5,000	633 contacts →
	Indirect evidence “With more than 25 years of molecular experience, BioFire Diagnostics, LLC (now bioMérieux) sets the standard for molecular diagnostics through its pioneering advances in syndromic…” Source: RevenueBase Database · checked Sep 20, 2026
10	Microbac Laboratories, INC	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 20, 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 20, 2026
11	Hygiena	Indirect evidence	Camarillo, CA, United StatesHQ checked Sep 20, 2026	501-1,000	485 contacts →
	Indirect evidence “Hygiena delivers rapid microbial detection, monitoring, and identification solutions to a wide range of industries, including food and beverage, healthcare, hospitality…” Source: RevenueBase Database · checked Sep 20, 2026
12	Food Safety NET Services	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 20, 2026	501-1,000	451 contacts →
	Partial evidence “As part of Certified Group, Food Safety Net Services (FSNS) and Certified Laboratories partner with customers to deliver innovative scientific solutions and expertise – So The…” Source: RevenueBase Database · checked Sep 20, 2026
13	ACM Global Laboratories	Partial evidence	Rochester, NY, United StatesHQ checked Sep 20, 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 20, 2026
14	Medical Diagnostic Laboratories MDL	Partial evidence	Hamilton, NJ, United StatesHQ checked Sep 20, 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 20, 2026
15	Microbiologics	Indirect evidence	Saint Cloud, MN, United StatesHQ checked Sep 20, 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 20, 2026
16	Certified Laboratories, INC	Partial evidence	Melville, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	287 contacts →
	Partial evidence “As part of Certified Group, Certified Laboratories partners with customers to deliver innovative scientific solutions and expertise – So The World Can Trust In What It Consumes™.” Source: RevenueBase Database · checked Sep 20, 2026
17	ARL BIO Pharma	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 20, 2026	201-500	286 contacts →
	Partial evidence “ARL Bio Pharma is a contract laboratory that provides analytical and microbiological testing for the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 20, 2026
18	Alpha Analytical	Indirect evidence	Westborough, MA, United StatesHQ checked Sep 20, 2026	501-1,000	254 contacts →
	Indirect evidence “Since 1987, Alpha Analytical, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
19	Hardy Diagnostics	Indirect evidence	Santa Maria, CA, United StatesHQ checked Sep 20, 2026	201-500	250 contacts →
	Indirect evidence “Hardy Diagnostics is a 100% employee-owned company that is licensed by the FDA as a medical device manufacturer, and its quality management system is ISO 13485 certified.” Source: RevenueBase Database · checked Sep 20, 2026
20	Deibel Laboratories	Partial evidence	Niles, IL, United StatesHQ checked Sep 20, 2026	201-500	242 contacts →
	Partial evidence “Deibel Laboratories started in 1967 by Dr.” Source: RevenueBase Database · checked Sep 20, 2026
21	Eurofins Viracor	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 20, 2026	201-500	233 contacts →
	Indirect evidence “It’s so much more than a specimen.” Source: RevenueBase Database · checked Sep 20, 2026
22	Charm Sciences, INC	Indirect evidence	Lawrence, MA, United StatesHQ checked Sep 20, 2026	201-500	211 contacts →
	Indirect evidence “Charm Sciences helps protect consumers, manufacturers and global brands from a variety of issues through the development of food safety, water quality, and environmental…” Source: RevenueBase Database · checked Sep 20, 2026
23	Rapid Micro Biosystems	Indirect evidence	Lexington, MA, United StatesHQ checked Sep 20, 2026	51-200	207 contacts →
	Indirect evidence “Rapid Micro Biosystems is a life sciences technology company providing automation solutions that improve the manufacturing process and enable the fast, safe release of critical…” Source: RevenueBase Database · checked Sep 20, 2026
24	RJ LEE Group	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 20, 2026	201-500	194 contacts →
	Indirect evidence “RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.” Source: RevenueBase Database · checked Sep 20, 2026
25	GEL Laboratories, LLC	Partial evidence	Charleston, SC, United StatesHQ checked Sep 20, 2026	201-500	190 contacts →
	Partial evidence “Since 1981, GEL Laboratories has been a leading provider of comprehensive and reliable analytical services to the environmental industry including chemical, radiochemical…” Source: RevenueBase Database · checked Sep 20, 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: 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 microbiology laboratories.
Partial evidence: Its own public description names part of microbiology laboratories, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 791 microbiology laboratories based in the United States

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Microbiology laboratories based in the United States at a glance

As of Sep 20, 2026

17.0%Verified-email coverage

74.4Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

290

11-50

303

51-200

121

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 791 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 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 “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 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 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, 10,013 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 20, 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 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 microbiology laboratories are there based in the United States?

RevenueBase identified 791 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 microbiology laboratories?

Houston leads with 16 headquartered companies, followed by Portland (8) and San Antonio (8).

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 10,013 verified decision-maker contacts tracked across these 791 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 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 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.