Company lists · Data refreshed September 2026

Top 25 Monoclonal antibody manufacturers based in the United States

RevenueBase identified 185 company matches for monoclonal antibody manufacturers associated with the United States as of September 2026 and tracks 5,968 professional contacts across them, including 2,517 with verified work emails. San Diego is the largest hub.

This list covers company matches for monoclonal antibody manufacturers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
185Companies
5,968Contacts tracked
2,517Verified emails
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The 25 largest monoclonal antibody manufacturers based in the United States

Ranked by team size
Top 25 of 185 company matches for monoclonal antibody manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDanvers, MA, United StatesHQ recorded Sep 17, 2026501-1,000678 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchNewark, DE, United StatesHQ recorded Sep 17, 202651-200559 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchPasadena, CA, United StatesHQ recorded Sep 17, 2026201-500281 contacts →

Exact match

“Designing Proteins.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchSantee, CA, United StatesHQ recorded Sep 17, 2026501-1,000250 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchRosemont, IL, United StatesHQ recorded Sep 17, 2026201-500240 contacts →

Exact match

“For when you need it all.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchFarmingdale, NY, United StatesHQ recorded Sep 17, 202651-200166 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchNewark, DE, United StatesHQ recorded Sep 17, 2026501-1,000151 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchLebanon, NH, United StatesHQ recorded Sep 17, 202651-200150 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchNewark, CA, United StatesHQ recorded Sep 17, 2026201-500140 contacts →

Exact match

“Vector Laboratories serves and partners with scientists and industry teams developing the next generation of diagnostics, therapeutics, and biological insights.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 17, 202651-200138 contacts →

Exact match

“Integral Molecular is a research-driven biotechnology company specializing in antibodies, viruses, and membrane proteins.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchRockville, MD, United StatesHQ recorded Sep 17, 2026201-500119 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchNorwich, CT, United StatesHQ recorded Sep 17, 2026201-500112 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchPipersville, PA, United StatesHQ recorded Sep 17, 202651-200106 contacts →

Exact match

“Discover the World of LAMPIRE Biological Laboratories!”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchMemphis, TN, United StatesHQ recorded Sep 17, 2026501-1,000105 contacts →

Exact match

“Meridian LIfe Science is a leading large-scale manufacturer of antibodies, viral antigens, recombinant proteins, blockers, PCR enzymes, nucleotides, and critical assay reagents.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchLimerick, PA, United StatesHQ recorded Sep 17, 202651-200103 contacts →

Exact match

“Rockland Immunochemicals, Inc.(Rockland) is a trusted partner to scientists worldwide, providing expertly designed and rigorously validated antibodies, assays, and supporting…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchWoburn, MA, United StatesHQ recorded Sep 17, 2026501-1,000100 contacts →

Exact match

“Based in Massachusetts, ABclonal is a dynamic and growing provider of biology research reagents and services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchWaltham, MA, United StatesHQ recorded Sep 17, 202651-20095 contacts →

Exact match

“Dragonfly Therapeutics is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing therapies that use its novel multispecific antibody…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchCambridge, MA, United StatesHQ recorded Sep 17, 2026201-50094 contacts →

Exact match

“Harbour BioMed (HKEX: 02142) is a global biopharmaceutical company committed to the discovery, development and commercialization of novel antibody therapeutics focusing on…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 17, 202651-20089 contacts →

Exact match

“GBI, based near Fort Lauderdale, Florida, is a fully integrated, customer-focused cGMP Contract Development Manufacturing Organization (CDMO) of Biosimilar and innovative…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchPrinceton, NJ, United StatesHQ recorded Sep 17, 2026201-50085 contacts →

Exact match

“Medarex is a biopharmaceutical company focused on the discovery, development, and potential commercialization of fully human antibody-based therapeutics to treat life- threatening…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5071 contacts →

Exact match

“The Institute for Protein Innovation is pioneering a new approach to scientific discovery and collaboration.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchEmeryville, CA, United StatesHQ recorded Sep 17, 202651-20068 contacts →

Exact match

“The OmniAb discovery platform provides pharmaceutical industry partners access to diverse antibody repertoires and high-throughput screening technologies to enable discovery of…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchPrinceton, United StatesHQ recorded Sep 17, 2026201-50065 contacts →

Exact match

“Transcenta is a clinical stage biopharmaceutical company that fully integrates antibody-based biotherapeutics discovery, research, development and manufacturing.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchRocklin, CA, United StatesHQ recorded Sep 17, 202651-20053 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchLebanon, NH, United StatesHQ recorded Sep 17, 202611-5052 contacts →

Exact match

“Accelerate your research from pilot to pre-clinical phases.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 185 monoclonal antibody manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 2,517 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Monoclonal antibody manufacturers based in the United States at a glance

As of Sep 17, 2026
42.2%Verified-email coverage
32.3Average contacts per company
11-50Median size (employees)
9.7%Largest-city concentration · San Diego
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
61
11-50
70
51-200
32
201-500
12
501-1,000
9
1,001-5,000
1

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 185 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “monoclonal antibody manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,517 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “monoclonal antibody manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many monoclonal antibody manufacturers are there based in the United States?

RevenueBase identified 185 company matches for monoclonal antibody manufacturers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Cell Signaling Technology CST tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most monoclonal antibody manufacturers?

San Diego leads with 18 company records, followed by Woburn (8) and Boston (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,517 professional contacts with verified work emails tracked across these 185 companies; direct dials are available where recorded.

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.

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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 SmartSearch, 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.