Company lists · Data refreshed September 2026

Top 25 Veterinary immunology companies based in the United States

RevenueBase identified 215 veterinary immunology companies headquartered in the United States as of September 2026 and tracks 26,086 professional contacts across them, including 11,369 with verified work emails. New York is the largest hub.

This list covers veterinary immunology 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 22, 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 22, 2026 86% judged on-target in blind review
215Companies
26,086Contacts tracked
11,369Verified emails
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The 25 largest veterinary immunology companies based in the United States

Ranked by team size
Top 25 of 215 veterinary immunology companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to veterinary immunology 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceParsippany, NJ, United StatesHQ checked Sep 22, 202610001+11,190 contacts →

Indirect evidence

“The world’s leading animal health company.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 22, 20265,001-10,0007,646 contacts →

Indirect evidence

“At Elanco, we are united by a genuine love and care for animals.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceFountain Valley, CA, United StatesHQ checked Sep 22, 20261,001-5,0001,884 contacts →

Indirect evidence

“Smarter Diagnostics.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceTeaneck, NJ, United StatesHQ checked Sep 22, 20261,001-5,0001,447 contacts →

Indirect 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 22, 2026
5Indirect evidenceGaithersburg, MD, United StatesHQ checked Sep 22, 202651-200151 contacts →

Indirect evidence

“LGC Clinical Diagnostics’ KPL portfolio includes a range of over 800 reagents and kits for immunoassays, immunohistochemistry, infectivity assays and flow cytometry.”

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceAnn Arbor, MI, United StatesHQ checked Sep 22, 202651-200125 contacts →

Partial evidence

“Zomedica (OTCQB: ZOMDF) is a veterinary health company focused on meeting the needs of clinical veterinarians in ways that promote both patient and practice health.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 22, 202651-200115 contacts →

Indirect evidence

“At InvivoGen, we strive to provide life scientists worldwide with innovative, high quality and reliable reagents.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceNorwich, CT, United StatesHQ checked Sep 22, 2026201-500112 contacts →

Indirect evidence

“AVS Bio | Biologics Start Here For more than 60 years, AVS Bio has been a trusted partner in scientific innovation, providing core biological materials and services that fuel…”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidencePipersville, PA, United StatesHQ checked Sep 22, 202651-200106 contacts →

Indirect evidence

“Discover the World of LAMPIRE Biological Laboratories!”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceOverland Park, KS, United StatesHQ checked Sep 22, 202651-20095 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 22, 2026
11Indirect evidenceMurrieta, CA, United StatesHQ checked Sep 22, 202651-20081 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceBrookings, SD, United StatesHQ checked Sep 22, 202651-20078 contacts →

Partial evidence

“Medgene is an animal health company focused on providing Prescription Platform vaccines to veterinarians and producers.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceOrange City, IA, United StatesHQ checked Sep 22, 202651-20063 contacts →

Indirect evidence

“Van Beek Natural Science is a family-owned company driven by an insatiable desire to elevate animal health and well-being.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceWilmington, NC, United StatesHQ checked Sep 22, 202651-20058 contacts →

Indirect evidence

“Pharmgate Animal Health is a livestock pharmaceutical company that delivers the right solutions to support animal health and farm profitability.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceRichardson, TX, United StatesHQ checked Sep 22, 202651-20057 contacts →

Partial evidence

“Ellie Diagnostics is the #1 independent full-service veterinary diagnostics laboratory dedicated to transforming animal health by making wellness testing more accessible.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceBeverly, MA, United StatesHQ checked Sep 22, 202651-20056 contacts →

Partial evidence

“We design, develop, and manufacture veterinary protein therapeutics.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceProvidence, RI, United StatesHQ checked Sep 22, 202611-5054 contacts →

Indirect evidence

“EpiVax has been providing immunogenicity expertise for over 25 years, helping pharmaceutical and biotech teams generate the insights they need to make informed decisions across…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceRocklin, CA, United StatesHQ checked Sep 22, 202651-20053 contacts →

Indirect evidence

“Cell Marque is now a part of MilliporeSigma, focused on the development of primary antibodies for in vitro diagnostics (IVD).”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceMarysville, KS, United StatesHQ checked Sep 22, 202651-20049 contacts →

Indirect evidence

“Valley Vet Supply is here to keep your animals healthy and happy with countless products and quick, reliable shipping.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidencePullman, WA, United StatesHQ checked Sep 22, 202651-20049 contacts →

Indirect evidence

“VMRD was founded in 1981 by D.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidencePleasanton, CA, United StatesHQ checked Sep 22, 202651-20047 contacts →

Indirect evidence

“Diagnostic BioSystems is a leading developer of specialty Immunohistochemistry reagents.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceIrvine, CA, United StatesHQ checked Sep 22, 202651-20046 contacts →

Indirect evidence

“As a multinational antibody manufacturer, GeneTex’s primary goal is to provide bioscience researchers with thoroughly validated reagents to accelerate their discovery.”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidencePensacola, FL, United StatesHQ checked Sep 22, 202651-20044 contacts →

Partial evidence

“Founded in 1978, PRN Pharmacal has spent nearly five decades advancing veterinary care through clinically driven innovation.”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceWoodland, CA, United StatesHQ checked Sep 22, 202651-20040 contacts →

Partial evidence

“Hygieia is engaged in the research, development and manufacturing of veterinary and human biologics and pharmaceuticals.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceMontgomery, TX, United StatesHQ checked Sep 22, 202651-20038 contacts →

Indirect evidence

“Since 1972, Bethyl has provided top-quality antibody products and services for research and diagnostic applications.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 215 veterinary immunology companies based in the United States

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Veterinary immunology companies based in the United States at a glance

As of Sep 22, 2026
43.6%Verified-email coverage
121.3Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
90
11-50
63
51-200
48
201-500
6
501-1,000
2
1,001-5,000
3
5,001-10,000
1
10001+
2

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 215 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 veterinary immunology 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 “veterinary immunology 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 veterinary immunology 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 veterinary immunology 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, 11,369 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 22, 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 veterinary immunology 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 veterinary immunology companies are there based in the United States?

RevenueBase identified 215 veterinary immunology 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?

Zoetis, headquartered in Parsippany, tops this list with the largest team on record.

Which city has the most veterinary immunology companies?

New York leads with 6 headquartered companies, followed by San Diego (6) and Ames (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 11,369 verified decision-maker contacts tracked across these 215 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 22, 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.