Company lists · Data refreshed September 2026

Top 25 Animal pharmaceutical testing companies based in the United States

Name: Animal pharmaceutical 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 30, 2026 275 companies tracked

RevenueBase identified 275 animal pharmaceutical testing companies headquartered in the United States as of September 2026 and tracks 64,140 professional contacts across them, including 29,924 with verified work emails. Fort Collins is the largest hub.

This list covers animal pharmaceutical 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 30, 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 30, 2026 86% judged on-target in blind review

275Companies

64,140Contacts tracked

29,924Verified emails

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The 25 largest animal pharmaceutical testing companies based in the United States

Ranked by team size

Top 25 of 275 animal pharmaceutical testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to animal pharmaceutical 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	PPD	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 30, 2026	10001+	20,530 contacts →
	Indirect evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 30, 2026
2	Charles River Laboratories	Partial evidence	Wilmington, MA, United StatesHQ checked Sep 30, 2026	10001+	14,166 contacts →
	Partial evidence “At Charles River, we are guided by our strong purpose-to create healthier lives-which centers around the patients who rely on the therapeutics we help to develop, the animals in…” Source: RevenueBase Database · checked Sep 30, 2026
3	Zoetis	Partial evidence	Parsippany, NJ, United StatesHQ checked Sep 30, 2026	10001+	11,190 contacts →
	Partial evidence “The world’s leading animal health company.” Source: RevenueBase Database · checked Sep 30, 2026
4	Covance	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 30, 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 30, 2026
5	Eurofins Lancaster Laboratories	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 30, 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 30, 2026
6	Phibro Animal Health	Partial evidence	Teaneck, NJ, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,447 contacts →
	Partial evidence “Our story begins with a goal of contributing to a healthy, affordable food supply by helping farmers responsibly care for their animals.” Source: RevenueBase Database · checked Sep 30, 2026
7	Inotiv	Indirect evidence	West Lafayette, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,015 contacts →
	Indirect evidence “WHERE INSIGHTS LEAD TO ANSWERS Expect More In choosing a partner for discovery, development and research models, expect more: more attention, more insight, and a superlative…” Source: RevenueBase Database · checked Sep 30, 2026
8	Bioagilytix	Partial evidence	Durham, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	915 contacts →
	Partial 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 30, 2026
9	Frontage Laboratories, INC	Indirect evidence	Exton, PA, United StatesHQ checked Sep 30, 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 30, 2026
10	Labconnect	Indirect evidence	Durham, NC, United StatesHQ checked Sep 30, 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 30, 2026
11	Envigo	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 30, 2026	1,001-5,000	439 contacts →
	Partial 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 30, 2026
12	Kcas BIO	Indirect evidence	Olathe, KS, United StatesHQ checked Sep 30, 2026	201-500	347 contacts →
	Indirect evidence “KCAS Bio is a top-tier contract research organization (CRO) that has 45 years of experience with both large pharma and biotech sponsors, providing comprehensive bioanalytical drug…” Source: RevenueBase Database · checked Sep 30, 2026
13	ARL BIO Pharma	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 30, 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 30, 2026
14	IIT Research Institute Iitri	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
15	Quality Chemical Laboratories	Indirect evidence	Wilmington, NC, United StatesHQ checked Sep 30, 2026	201-500	177 contacts →
	Indirect evidence “QCL is science driven, quality focused, and responsive.” Source: RevenueBase Database · checked Sep 30, 2026
16	Spaulding Clinical Research, LLC	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 30, 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 30, 2026
17	Reaction Biology	Indirect evidence	Malvern, PA, United StatesHQ checked Sep 30, 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 30, 2026
18	Pacific Biolabs, INC	Strong evidence	Hercules, CA, United StatesHQ checked Sep 30, 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 30, 2026
19	Pegasus Laboratories, INC	Indirect evidence	Pensacola, FL, United StatesHQ checked Sep 30, 2026	51-200	113 contacts →
	Indirect evidence “About Us Pegasus Laboratories was founded in 1986 and acquired by PBI-Gordon Corporation in We employ over 100 employee/owners and pride ourselves on a quality workforce.” Source: RevenueBase Database · checked Sep 30, 2026
20	EAGLE	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	112 contacts →
	Partial 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 30, 2026
21	Spectrix Analytical Services, LLC	Indirect evidence	North Haven, CT, United StatesHQ checked Sep 30, 2026	51-200	102 contacts →
	Indirect evidence “Spectrix is a scientific services company that provides on-site services tailored to its clients' needs.” Source: RevenueBase Database · checked Sep 30, 2026
22	Parnell Veterinary Pharmaceuticals	Partial evidence	Overland Park, KS, United StatesHQ checked Sep 30, 2026	51-200	95 contacts →
	Partial evidence “Over the last fifty years Parnell has become a leading global veterinary pharmaceutical business marketing products in 15 countries.” Source: RevenueBase Database · checked Sep 30, 2026
23	IHMA	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 30, 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 30, 2026
24	Eurofins Infinity Laboratory Group, INC	Partial evidence	Lancaster, CO, United StatesHQ checked Sep 30, 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 30, 2026
25	Confidence Pharmaceutical Research	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 30, 2026	51-200	71 contacts →
	Partial evidence “Confidence Pharmaceutical Research (CPR) is a dynamic force in the pharmaceutical industry, driven by a vision to revolutionize drug development.” Source: RevenueBase Database · checked Sep 30, 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: animal pharmaceutical 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 animal pharmaceutical testing companies.
Partial evidence: Its own public description names part of animal pharmaceutical testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name animal pharmaceutical 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 275 animal pharmaceutical testing companies based in the United States

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Animal pharmaceutical testing companies based in the United States at a glance

As of Sep 30, 2026

46.7%Verified-email coverage

233.2Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Fort Collins

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

104

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 275 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 animal pharmaceutical 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 “animal pharmaceutical 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 animal pharmaceutical 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 animal pharmaceutical 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, 29,924 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 30, 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 animal pharmaceutical 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 animal pharmaceutical testing companies are there based in the United States?

RevenueBase identified 275 animal pharmaceutical 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?

PPD, headquartered in Waltham, tops this list with the largest team on record.

Which city has the most animal pharmaceutical testing companies?

Fort Collins leads with 6 headquartered companies, followed by Chicago (5) and Durham (5).

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 29,924 verified decision-maker contacts tracked across these 275 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 30, 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.