Company lists · Data refreshed September 2026

Top 25 Preclinical testing companies based in the United States

Name: Preclinical 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 17, 2026 406 companies tracked

RevenueBase identified 406 preclinical testing companies headquartered in the United States as of September 2026 and tracks 21,503 professional contacts across them, including 7,992 with verified work emails. San Diego is the largest hub.

This list covers preclinical 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 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

406Companies

21,503Contacts tracked

7,992Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest preclinical testing companies based in the United States

Ranked by team size

Top 25 of 406 preclinical testing companies 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 preclinical 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	Covance	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	10001+	5,220 contacts →
	Indirect evidence “As the drug development business of Laboratory Corporation of America Holdings (Labcorp) and the world’s most comprehensive drug development #CRO service company, we have helped…” Source: RevenueBase Database · checked Sep 17, 2026
2	Premier Research	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,584 contacts →
	Indirect evidence “Premier Research International LLC (Premier) is a global leader in clinical research and consulting services with expertise in driving an efficient and effective path to market…” Source: RevenueBase Database · checked Sep 17, 2026
3	Celerion	Indirect evidence	Lincoln, NE, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,080 contacts →
	Indirect evidence “Celerion, a leader in early clinical research, delivers Applied Translational Medicine.” Source: RevenueBase Database · checked Sep 17, 2026
4	Bioagilytix	Indirect evidence	Durham, NC, United StatesHQ checked Sep 17, 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 17, 2026
5	Frontage Laboratories, INC	Indirect evidence	Exton, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	727 contacts →
	Indirect evidence “Frontage Laboratories is a US-based Contract Research Organization (CRO) that was initially established in New Jersey in April 2001 and later relocated to Pennsylvania in 2004.” Source: RevenueBase Database · checked Sep 17, 2026
6	Aegis Sciences Corporation	Partial evidence	Nashville, TN, United StatesHQ checked Sep 17, 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 17, 2026
7	Labconnect	Indirect evidence	Durham, NC, United StatesHQ checked Sep 17, 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 17, 2026
8	ACM Global Laboratories	Partial evidence	Rochester, NY, United StatesHQ checked Sep 17, 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 17, 2026
9	Crown Bioscience	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	441 contacts →
	Partial evidence “Crown Bioscience, a JSR Life Sciences company, is a global contract research organization (CRO) providing discovery, preclinical, and translational platforms to advance oncology…” Source: RevenueBase Database · checked Sep 17, 2026
10	Envigo	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	1,001-5,000	439 contacts →
	Indirect evidence “Envigo provides the broadest range of research models and related services to the pharmaceutical and biotechnology industries, government, academia, and other life science…” Source: RevenueBase Database · checked Sep 17, 2026
11	Medicilon INC	Indirect evidence	Lexington, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	194 contacts →
	Indirect evidence “We are a one-stop pre-clinical CRO that has assisted in the approval of 544 IND applications for clinical trials globally.” Source: RevenueBase Database · checked Sep 17, 2026
12	IIT Research Institute Iitri	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	51-200	188 contacts →
	Indirect evidence “IITRI was founded in 1936 as the research arm of the Illinois Institute of Technology (IIT).” Source: RevenueBase Database · checked Sep 17, 2026
13	Dr. Vince Clinical Research	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 17, 2026	201-500	168 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 17, 2026
14	Spaulding Clinical Research, LLC	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 17, 2026	51-200	154 contacts →
	Indirect evidence “Founded in 2007, Spaulding Clinical is a full-service, state-of-the-art paperless Phase I clinical pharmacology unit.” Source: RevenueBase Database · checked Sep 17, 2026
15	Merit CRO	Indirect evidence	Madison, WI, United StatesHQ checked Sep 17, 2026	51-200	153 contacts →
	Indirect evidence “MERIT is an innovative clinical endpoint expert providing attentive expertise in our therapeutic areas.” Source: RevenueBase Database · checked Sep 17, 2026
16	Psychogenics	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 17, 2026	51-200	144 contacts →
	Partial evidence “PsychoGenics is a preclinical CRO with expertise in CNS and orphan disorders.” Source: RevenueBase Database · checked Sep 17, 2026
17	Reaction Biology	Indirect evidence	Malvern, PA, United StatesHQ checked Sep 17, 2026	51-200	133 contacts →
	Indirect evidence “Reaction Biology specializes in answering your complex scientific questions to accelerate the development of your breakthrough therapeutic candidates.” Source: RevenueBase Database · checked Sep 17, 2026
18	Immunologix Laboratories	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	51-200	128 contacts →
	Indirect evidence “Immunologix Laboratories is a unique scientific partner, offering GLP and GCP compliant laboratory capabilities focused on ligand binding-based bioanalysis coupled with expert…” Source: RevenueBase Database · checked Sep 17, 2026
19	Pacific Biolabs, INC	Partial evidence	Hercules, CA, United StatesHQ checked Sep 17, 2026	51-200	120 contacts →
	Partial 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
20	Biomere Biomedical Research Models, INC	Partial evidence	Worcester, MA, United StatesHQ checked Sep 17, 2026	51-200	120 contacts →
	Partial evidence “Biomere is a preclinical contract research organization (CRO) located on the East Coast in Worcester, MA.” Source: RevenueBase Database · checked Sep 17, 2026
21	EPL	Partial evidence	Sterling, VA, United StatesHQ checked Sep 17, 2026	51-200	108 contacts →
	Partial evidence “Experimental Pathology Laboratories, Inc.(EPL®) is recognized internationally for its ability to meet the needs of the scientific community and the challenges of preclinical…” Source: RevenueBase Database · checked Sep 17, 2026
22	Navigate Biopharma Services, INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 17, 2026	51-200	98 contacts →
	Indirect evidence “Navigate BioPharma is a specialty laboratory offering high quality, innovative and differentiated precision medicine solutions for drug development and diagnostic applications.” Source: RevenueBase Database · checked Sep 17, 2026
23	Data Sciences International	Partial evidence	Saint Paul, MN, United StatesHQ checked Sep 17, 2026	201-500	90 contacts →
	Partial evidence “DSI is a pioneering biomedical research company focused on preclinical systems physiology and pharmacology.” Source: RevenueBase Database · checked Sep 17, 2026
24	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
25	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

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: preclinical 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 preclinical testing companies.
Partial evidence: Its own public description names part of preclinical testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name preclinical 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 406 preclinical testing companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,992 reachable decision-makers.

Free signup · no credit card

View the full list →

Preclinical testing companies based in the United States at a glance

As of Sep 17, 2026

37.2%Verified-email coverage

53.0Average contacts per company

11-50Median size (employees)

4.2%Largest-city concentration · San Diego

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

146

11-50

156

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 406 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 preclinical 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 “preclinical 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 preclinical 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 preclinical 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, 7,992 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 preclinical 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 preclinical testing companies are there based in the United States?

RevenueBase identified 406 preclinical 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?

Covance, headquartered in Princeton, tops this list with the largest team on record.

Which city has the most preclinical testing companies?

San Diego leads with 17 headquartered companies, followed by Durham (10) and Chicago (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 7,992 verified decision-maker contacts tracked across these 406 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.

Ready to reach these companies? Verified emails and direct dials for all 406 preclinical testing companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Preclinical testing companies by geography

Browse the directory

Browse: Companies home · All United States lists · All Preclinical testing companies lists · New lists

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.