Company lists · Data refreshed September 2026

Top 25 Pharmaceutical microbial testing services based in the United States

Name: Pharmaceutical microbial testing 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 182 companies tracked

RevenueBase identified 182 pharmaceutical microbial testing services headquartered in the United States as of September 2026 and tracks 5,550 professional contacts across them, including 2,505 with verified work emails. Houston is the largest hub.

This list covers pharmaceutical microbial testing services 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 17, 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 17, 2026 86% judged on-target in blind review

182Companies

5,550Contacts tracked

2,505Verified emails

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The 25 largest pharmaceutical microbial testing services based in the United States

Ranked by team size

Top 25 of 182 pharmaceutical microbial testing services based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical microbial testing services: 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	Nelson Labs	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 17, 2026	501-1,000	775 contacts →
	Strong 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 17, 2026
2	Microbac Laboratories, INC	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 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 17, 2026
3	Hygiena	Partial evidence	Camarillo, CA, United StatesHQ checked Sep 17, 2026	501-1,000	485 contacts →
	Partial 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 17, 2026
4	ARL BIO Pharma	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 17, 2026	201-500	286 contacts →
	Strong evidence “ARL Bio Pharma is a contract laboratory that provides analytical and microbiological testing for the pharmaceutical industry.” Source: RevenueBase Database · checked Sep 17, 2026
5	Associates Of Cape Cod, INC	Indirect evidence	East Falmouth, MA, United StatesHQ checked Sep 17, 2026	201-500	259 contacts →
	Indirect evidence “Specializing in recombinant and traditional chromogenic and turbidimetric reagent technologies for 50 years.” Source: RevenueBase Database · checked Sep 17, 2026
6	Deibel Laboratories	Indirect evidence	Niles, IL, United StatesHQ checked Sep 17, 2026	201-500	242 contacts →
	Indirect evidence “Deibel Laboratories started in 1967 by Dr.” Source: RevenueBase Database · checked Sep 17, 2026
7	Quality Chemical Laboratories	Indirect evidence	Wilmington, NC, United StatesHQ checked Sep 17, 2026	201-500	177 contacts →
	Indirect evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 17, 2026
8	Q Laboratories	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 17, 2026	51-200	162 contacts →
	Indirect evidence “Q Laboratories is an FDA/MoCRA registered (#1527260), cGMP/GLP compliant, and ISO/IEC 17025 accredited contract laboratory supporting global brands in delivering safe…” Source: RevenueBase Database · checked Sep 17, 2026
9	Pacific Biolabs, INC	Strong evidence	Hercules, CA, United StatesHQ checked Sep 17, 2026	51-200	120 contacts →
	Strong evidence “Pacific BioLabs is the leading West Coast provider of GMP/GLP laboratory testing services supporting Medical Device, Pharmaceutical, and Biotechnology industries.” Source: RevenueBase Database · checked Sep 17, 2026
10	EAGLE	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	112 contacts →
	Strong evidence “Eagle Analytical is an FDA- and DEA-registered, A2LA ISO 17025-accredited laboratory that provides analytical chemistry, microbiological testing, consulting, and technical…” Source: RevenueBase Database · checked Sep 17, 2026
11	IHMA	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect evidence “IHMA provides a full suite of technical capabilities and domain expertise in all phases of antimicrobial drug development: drug discovery, clinical development, regulatory…” Source: RevenueBase Database · checked Sep 17, 2026
12	Eurofins Infinity Laboratory Group, INC	Partial evidence	Lancaster, CO, United StatesHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “Infinity Laboratories, now part of Eurofins network of laboratories, is a leading contract testing organization with a national network of state-of-the-art facilities, ensuring…” Source: RevenueBase Database · checked Sep 17, 2026
13	Canyon Labs	Partial evidence	Bluffdale, UT, United StatesHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “Canyon Labs partners with pharmaceutical and medical device companies to support products from development through launch and long-term market maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
14	Solvias Usa, LLC	Partial evidence	Canton, MA, United StatesHQ checked Sep 17, 2026	11-50	63 contacts →
	Partial evidence “A FDA Registered, DEA Licensed CRO providing expertise in Regulated QC monograph testing; CMC Data production; Bio-analytical analysis Extractables/Leachables assessment; and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Microchem Laboratory	Partial evidence	Round Rock, United StatesHQ checked Sep 17, 2026	11-50	61 contacts →
	Partial evidence “Microchem Laboratory is an independent, FDA and EPA GLP-compliant contract testing facility, located in the greater Austin, Texas area.” Source: RevenueBase Database · checked Sep 17, 2026
16	Primera Analytical Solutions Corporation	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “Primera Analytical Solutions is a GLP and GMP CRO in great standing with the FDA.” Source: RevenueBase Database · checked Sep 17, 2026
17	Lexamed- Microbiology & Analytical Laboratory	Partial evidence	Toledo, OH, United StatesHQ checked Sep 17, 2026	11-50	46 contacts →
	Partial evidence “LexaMed is a company dedicated to providing the pharmaceutical, medical device and biotechnology industries with quality, compliant, state-of-the-art services in the areas of…” Source: RevenueBase Database · checked Sep 17, 2026
18	Analytical LAB Group	Indirect evidence	Eagan, MN, United StatesHQ checked Sep 17, 2026	n/a	44 contacts →
	Indirect evidence “Analytical Lab Group, proud to be part of Element, is an industry leader in the specialty contract lab space and comprises FDA- and EPA-focused laboratories across the United…” Source: RevenueBase Database · checked Sep 17, 2026
19	Accurant Biotech, INC	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Accurant Biotech is a GxP-compliant contract research organization (CRO) specializing in bioanalytical support for large molecule and biologic therapeutics.” Source: RevenueBase Database · checked Sep 17, 2026
20	Midwest Compliance Laboratories	Partial evidence	Terre Haute, IN, United StatesHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial evidence “We offer cGMP QC contract laboratory services to the pharmaceutical, nutraceutical, and food industries.” Source: RevenueBase Database · checked Sep 17, 2026
21	Biochroma Analytical Labs	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “BioChroma Analytical Labs LLC is based out of the DFW metroplex in the heart of Texas.” Source: RevenueBase Database · checked Sep 17, 2026
22	Exact Scientific Services, INC	Strong evidence	Ferndale, WA, United StatesHQ checked Sep 17, 2026	11-50	29 contacts →
	Strong evidence “A Higher Level of Laboratory Testing As a quality assurance or R&D professional, you expect fast, accurate, and client-focused results for your chemistry and microbiological…” Source: RevenueBase Database · checked Sep 17, 2026
23	CS Analytical	Partial evidence	Clifton, NJ, United StatesHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Located in Clifton, New Jersey, CS Analytical represents the only cGMP, FDA-regulated laboratory exclusively designed and built to serve the container and package testing needs of…” Source: RevenueBase Database · checked Sep 17, 2026
24	NJ Labs	Strong evidence	New Brunswick, NJ, United StatesHQ checked Sep 17, 2026	11-50	28 contacts →
	Strong evidence “NJ Labs provides expert analytical chemistry & microbiology testing for the pharmaceutical, nutraceutical, dietary supplement, cosmetic, dairy & food industries.” Source: RevenueBase Database · checked Sep 17, 2026
25	Microbiology Specialists Incorporated	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “We are located near the Texas Medical Center in Houston, Texas.” Source: RevenueBase Database · checked Sep 17, 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: pharmaceutical microbial testing services. 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 pharmaceutical microbial testing services.
Partial evidence: Its own public description names part of pharmaceutical microbial testing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical microbial testing services. 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 182 pharmaceutical microbial testing services based in the United States

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Pharmaceutical microbial testing services based in the United States at a glance

As of Sep 17, 2026

45.1%Verified-email coverage

30.5Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 182 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 pharmaceutical microbial testing services, 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 “pharmaceutical microbial testing services”. 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 pharmaceutical microbial testing services), 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 pharmaceutical microbial testing services, 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, 2,505 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 17, 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 pharmaceutical microbial testing services, 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 pharmaceutical microbial testing services are there based in the United States?

RevenueBase identified 182 pharmaceutical microbial testing services 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?

Nelson Labs, headquartered in Salt Lake City, tops this list with the largest team on record.

Which city has the most pharmaceutical microbial testing services?

Houston leads with 5 headquartered companies, followed by Castle Rock (3) and Miami (3).

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 2,505 verified decision-maker contacts tracked across these 182 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 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 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.