Company lists · Data refreshed September 2026

Top 25 Bioanalytical testing companies based in the United States

Name: Bioanalytical testing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,175 companies tracked

RevenueBase identified 1,175 bioanalytical testing companies headquartered in the United States as of September 2026 and tracks 123,517 professional contacts across them, including 36,514 with verified work emails. San Diego is the largest hub.

This list covers bioanalytical testing companies 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 19, 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 19, 2026 86% judged on-target in blind review

1,175Companies

123,517Contacts tracked

36,514Verified emails

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The 25 largest bioanalytical testing companies based in the United States

Ranked by team size

Top 25 of 1,175 bioanalytical testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to bioanalytical testing companies: 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	Labcorp	Indirect evidence	Burlington, NC, United StatesHQ checked Sep 19, 2026	10001+	38,427 contacts →
	Indirect evidence “Clear and confident health care decisions begin with questions.” Source: RevenueBase Database · checked Sep 19, 2026
2	Quest Diagnostics	Indirect evidence	Secaucus, NJ, United StatesHQ checked Sep 19, 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 19, 2026
3	Waters Corporation	Indirect evidence	Milford, MA, United StatesHQ checked Sep 19, 2026	10001+	8,189 contacts →
	Indirect evidence “Waters Corporation (NYSE: WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies…” Source: RevenueBase Database · checked Sep 19, 2026
4	SCIEX	Indirect evidence	Framingham, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,329 contacts →
	Indirect evidence “SCIEX helps to improve the world we live in by enabling scientists and laboratory analysts to find answers to the complex analytical challenges they face.” Source: RevenueBase Database · checked Sep 19, 2026
5	Pace Analytical Services	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 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 19, 2026
6	Eurofins Lancaster Laboratories	Indirect evidence	Lancaster, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,638 contacts →
	Indirect 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 19, 2026
7	Clinical Pathology Laboratories	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,528 contacts →
	Indirect evidence “Clinical Pathology Laboratories (CPL) is a medically-led company dating back to 1948.” Source: RevenueBase Database · checked Sep 19, 2026
8	Q Solutions	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,291 contacts →
	Indirect evidence “Q² Solutions is now IQVIA Laboratories.” Source: RevenueBase Database · checked Sep 19, 2026
9	Azenta Life Sciences	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,236 contacts →
	Indirect evidence “Azenta (Nasdaq: AZTA) is a leading provider of life sciences solutions worldwide, enabling impactful breakthroughs and therapies to market faster.” Source: RevenueBase Database · checked Sep 19, 2026
10	Sonora Quest Laboratories Laboratory Sciences Of Arizona	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,222 contacts →
	Indirect 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 19, 2026
11	Meso Scale Diagnostics, LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	954 contacts →
	Indirect evidence “Founded in 1995, Meso Scale Discovery (MSD) is a global leader in the development, manufacture, and commercialization of innovative assays and instruments for the measurement of…” Source: RevenueBase Database · checked Sep 19, 2026
12	Bioagilytix	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	915 contacts →
	Indirect evidence “BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.” Source: RevenueBase Database · checked Sep 19, 2026
13	Nelson Labs	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 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 19, 2026
14	Aegis Sciences Corporation	Partial evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	501-1,000	690 contacts →
	Partial evidence “Founded in 1990, Aegis Sciences Corporation is a forensic toxicology and healthcare laboratory that provides science-driven drug testing and consulting services based in…” Source: RevenueBase Database · checked Sep 19, 2026
15	Tricore Reference Laboratories	Indirect evidence	Albuquerque, NM, United StatesHQ checked Sep 19, 2026	1,001-5,000	675 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
16	Millennium Health	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	501-1,000	665 contacts →
	Indirect evidence “Millennium Health is an accredited specialty laboratory with over 15 years of experience delivering timely, accurate, clinically-actionable information through our nationwide…” Source: RevenueBase Database · checked Sep 19, 2026
17	Phenomenex	Indirect evidence	Torrance, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	660 contacts →
	Indirect evidence “Phenomenex is a global technology leader committed to developing novel analytical chemistry solutions that solve the separation and purification challenges of researchers in…” Source: RevenueBase Database · checked Sep 19, 2026
18	Solstas LAB Partners	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	649 contacts →
	Indirect 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 19, 2026
19	Labconnect	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	501-1,000	610 contacts →
	Indirect evidence “LabConnect is a global central laboratory services and clinical trial sample solutions partner, integrating and optimizing sample-related activities across the study lifecycle…” Source: RevenueBase Database · checked Sep 19, 2026
20	Microbac Laboratories, INC	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 19, 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 19, 2026
21	Clinical Reference Laboratory	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 19, 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 19, 2026
22	ACM Global Laboratories	Partial evidence	Rochester, NY, United StatesHQ checked Sep 19, 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 19, 2026
23	Mako Medical	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	433 contacts →
	Indirect 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 19, 2026
24	Bioivt	Indirect evidence	Woodbury, NY, United StatesHQ checked Sep 19, 2026	501-1,000	421 contacts →
	Indirect evidence “BioIVT, formerly BioreclamationIVT, is a leading global provider of high-quality biological specimens and value-added services.” Source: RevenueBase Database · checked Sep 19, 2026
25	Diagnostic Laboratory Services	Partial evidence	Aiea, HI, United StatesHQ checked Sep 19, 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 19, 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: bioanalytical testing companies. 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 bioanalytical testing companies.
Partial evidence: Its own public description names part of bioanalytical testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name bioanalytical testing companies. 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 1,175 bioanalytical testing companies based in the United States

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Bioanalytical testing companies based in the United States at a glance

As of Sep 19, 2026

29.6%Verified-email coverage

105.1Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · San Diego

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

414

11-50

438

51-200

217

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 1,175 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 bioanalytical testing companies, 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 “bioanalytical testing companies”. 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 bioanalytical testing companies), 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 bioanalytical testing companies, 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, 36,514 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 19, 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.

Bioanalytical testing companies by metro

Bioanalytical testing companies in San Diego30

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 bioanalytical testing companies, 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 bioanalytical testing companies are there based in the United States?

RevenueBase identified 1,175 bioanalytical testing companies 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?

Labcorp, headquartered in Burlington, tops this list with the largest team on record.

Which city has the most bioanalytical testing companies?

San Diego leads with 30 headquartered companies, followed by Irvine (18) and Houston (14).

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 36,514 verified decision-maker contacts tracked across these 1,175 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 19, 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.