Company lists · Data refreshed September 2026

Top 25 Antibody companies based in the United States

RevenueBase identified 798 antibody companies headquartered in the United States as of September 2026 and tracks 32,699 professional contacts across them, including 15,375 with verified work emails. San Diego is the largest hub.

This list covers antibody 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
798Companies
32,699Contacts tracked
15,375Verified emails
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The 25 largest antibody companies based in the United States

Ranked by team size
Top 25 of 798 antibody 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 antibody 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 evidenceHercules, CA, United StatesHQ checked Sep 19, 20265,001-10,0008,149 contacts →

Indirect evidence

“Bio-Rad provides the healthcare industry with innovative and useful products that help life science researchers accelerate the discovery process and medical diagnostic labs obtain…”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 19, 20261,001-5,0001,976 contacts →

Indirect evidence

“Bio-Techne is a global life sciences company that empowers scientific discovery and advances human health.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 19, 20261,001-5,0001,952 contacts →

Indirect evidence

“argenx is a global immunology company committed to improving the lives of people living with severe autoimmune diseases.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidencePiscataway, NJ, United StatesHQ checked Sep 19, 20265,001-10,0001,194 contacts →

Indirect evidence

“GenScript Life Science Group is a part of GenScript Biotech Corporation.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceBothell, WA, United StatesHQ checked Sep 19, 20261,001-5,000857 contacts →

Indirect evidence

“Seagen is now part of Pfizer!”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 2026501-1,000678 contacts →

Indirect evidence

“Adaptive Biotechnologies is a pioneer and leader in immune-driven medicine that aims to improve people’s lives by learning from the wisdom of their adaptive immune systems.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceDanvers, MA, United StatesHQ checked Sep 19, 2026501-1,000678 contacts →

Indirect evidence

“Founded by research scientists in Cell Signaling Technology (CST) is a private, family-owned company that prides itself on operating as a research institute developing quality…”

Source: RevenueBase Database · checked Sep 19, 2026
8Strong evidenceNewark, DE, United StatesHQ checked Sep 19, 202651-200559 contacts →

Strong evidence

“SDIX, a wholly owned subsidiary of OriGene Technologies specializing in high quality, large-scale, GMP antibody production.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceRockville, MD, United StatesHQ checked Sep 19, 2026201-500408 contacts →

Strong evidence

“MacroGenics is a leader in the discovery and development of innovative medicines that utilize our next generation antibody-based technologies.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 19, 2026201-500331 contacts →

Indirect evidence

“TriLink BioTechnologies, a Maravai LifeSciences company, is a global leader in nucleic acid and mRNA solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceAnn Arbor, MI, United StatesHQ checked Sep 19, 2026201-500287 contacts →

Strong evidence

“Helping Make Research Possible We are helping make research possible by supplying scientists worldwide with the assay kits, antibodies, proteins, and biochemicals to advance their…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceWaltham, MA, United StatesHQ checked Sep 19, 2026201-500282 contacts →

Indirect evidence

“Viridian is a biopharmaceutical company focused on engineering and developing potential best-in-class medicines for patients with serious and rare diseases.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidencePasadena, CA, United StatesHQ checked Sep 19, 2026201-500281 contacts →

Indirect evidence

“Designing Proteins.”

Source: RevenueBase Database · checked Sep 19, 2026
14Strong evidenceSantee, CA, United StatesHQ checked Sep 19, 2026501-1,000250 contacts →

Strong evidence

“In vitro diagnostic company, specializing in the production of antibodies, controls, blockers including HBR- Clean Rooms - Filling - Finishing - Packaging - Sub-Assembly -…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceRosemont, IL, United StatesHQ checked Sep 19, 2026201-500240 contacts →

Indirect evidence

“For when you need it all.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 202651-200227 contacts →

Indirect evidence

“InBios is a leading biotechnology company based in Seattle, Washington (USA).”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceVista, CA, United StatesHQ checked Sep 19, 202651-200215 contacts →

Indirect evidence

“Our mission is to bring clarity to complex autoimmune diseases by empowering physicians, and our partners across healthcare and biopharma, with advanced testing solutions that…”

Source: RevenueBase Database · checked Sep 19, 2026
18Strong evidenceWaltham, MA, United StatesHQ checked Sep 19, 20261,001-5,000188 contacts →

Strong evidence

“Biocytogen provides integrated solutions for next-generation antibody drug development to the global biomedical communities.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 20261,001-5,000187 contacts →

Indirect evidence

“Welcome to Selleck Chemicals!”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceDallas, TX, United StatesHQ checked Sep 19, 2026201-500182 contacts →

Indirect evidence

“Santa Cruz Biotechnology, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceFarmingdale, NY, United StatesHQ checked Sep 19, 202651-200166 contacts →

Indirect evidence

“For more than 45 years, Enzo Biochem has been a leader in innovation and product development to support a diverse range of needs in biomedical research and healthcare.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceNew Haven, CT, United StatesHQ checked Sep 19, 202651-200153 contacts →

Indirect evidence

“Invivyd, Inc.(Nasdaq: IVVD) creates medicines that are more potent and resistant to virus evolution than the human immune system.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceNewark, DE, United StatesHQ checked Sep 19, 2026501-1,000151 contacts →

Indirect evidence

“ACROBiosystems Group, founded in 2010 and listed in 2021, is a biotechnology company aimed at being a cornerstone of the global biopharmaceutical and health industries by…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceGaithersburg, MD, United StatesHQ checked Sep 19, 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 19, 2026
25Strong evidenceLebanon, NH, United StatesHQ checked Sep 19, 202651-200150 contacts →

Strong evidence

“Adimab is the most successful antibody discovery and engineering company in the industry and the partner of choice for biopharma.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 798 antibody companies based in the United States

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Antibody companies based in the United States at a glance

As of Sep 19, 2026
47.0%Verified-email coverage
41.0Average contacts per company
11-50Median size (employees)
7.9%Largest-city concentration · San Diego
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
328
11-50
284
51-200
126
201-500
32
501-1,000
13
1,001-5,000
13
5,001-10,000
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 798 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 antibody 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 “antibody 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 antibody 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 antibody 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, 15,375 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.

Antibody companies by metro

  • Antibody companies in San Diego63

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 antibody 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 antibody companies are there based in the United States?

RevenueBase identified 798 antibody 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?

Bio-Rad Laboratories, headquartered in Hercules, tops this list with the largest team on record.

Which city has the most antibody companies?

San Diego leads with 63 headquartered companies, followed by Cambridge (23) and Boston (21).

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 15,375 verified decision-maker contacts tracked across these 798 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.