Company lists · Data refreshed September 2026
Top 25 Monoclonal antibody manufacturers worldwide
RevenueBase identified 245 monoclonal antibody manufacturers worldwide as of September 2026 and tracks 6,467 professional contacts across them, including 2,681 with verified work emails and 0 with mobile numbers. The United States is the largest market and San Diego the largest hub.
This list covers monoclonal antibody manufacturers worldwide, 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. Country and city lists for monoclonal antibody manufacturers follow the table.
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.
The 25 largest monoclonal antibody manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 678 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 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 559 contacts → | ||||
Partial evidence “SDIX, a wholly owned subsidiary of OriGene Technologies specializing in high quality, large-scale, GMP antibody production.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 281 contacts → | ||||
Indirect evidence “Designing Proteins.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 250 contacts → | ||||
Partial 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 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 240 contacts → | ||||
Indirect evidence “For when you need it all.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 166 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 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 151 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 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 150 contacts → | ||||
Partial 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 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 140 contacts → | ||||
Indirect evidence “Vector Laboratories serves and partners with scientists and industry teams developing the next generation of diagnostics, therapeutics, and biological insights.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 138 contacts → | ||||
Partial evidence “Integral Molecular is a research-driven biotechnology company specializing in antibodies, viruses, and membrane proteins.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 119 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 112 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 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 106 contacts → | ||||
Indirect evidence “Discover the World of LAMPIRE Biological Laboratories!” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 105 contacts → | ||||
Strong evidence “Meridian LIfe Science is a leading large-scale manufacturer of antibodies, viral antigens, recombinant proteins, blockers, PCR enzymes, nucleotides, and critical assay reagents.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 103 contacts → | ||||
Partial evidence “Rockland Immunochemicals, Inc.(Rockland) is a trusted partner to scientists worldwide, providing expertly designed and rigorously validated antibodies, assays, and supporting…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 100 contacts → | ||||
Indirect evidence “Based in Massachusetts, ABclonal is a dynamic and growing provider of biology research reagents and services.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 95 contacts → | ||||
Partial evidence “Dragonfly Therapeutics is a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing therapies that use its novel multispecific antibody…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 94 contacts → | ||||
Partial evidence “Harbour BioMed (HKEX: 02142) is a global biopharmaceutical company committed to the discovery, development and commercialization of novel antibody therapeutics focusing on…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 89 contacts → | ||||
Indirect evidence “GBI, based near Fort Lauderdale, Florida, is a fully integrated, customer-focused cGMP Contract Development Manufacturing Organization (CDMO) of Biosimilar and innovative…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 85 contacts → | ||||
Partial evidence “Medarex is a biopharmaceutical company focused on the discovery, development, and potential commercialization of fully human antibody-based therapeutics to treat life- threatening…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 71 contacts → | ||||
Indirect evidence “The Institute for Protein Innovation is pioneering a new approach to scientific discovery and collaboration.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 68 contacts → | ||||
Partial evidence “The OmniAb discovery platform provides pharmaceutical industry partners access to diverse antibody repertoires and high-throughput screening technologies to enable discovery of…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 65 contacts → | ||||
Partial evidence “Transcenta is a clinical stage biopharmaceutical company that fully integrates antibody-based biotherapeutics discovery, research, development and manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 53 contacts → | ||||
Partial 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 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 contacts → | ||||
Indirect evidence “Accelerate your research from pilot to pre-clinical phases.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
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: monoclonal antibody manufacturers. 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 monoclonal antibody manufacturers.
- Partial evidence
- Its own public description names part of monoclonal antibody manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name monoclonal antibody manufacturers. 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 245 monoclonal antibody manufacturers worldwide
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Monoclonal antibody manufacturers worldwide at a glance
As of Sep 17, 2026Companies by employee count
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 monoclonal antibody manufacturers, 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.
- Coverage
- 3 countries, largest first: the United States, Germany, the United Kingdom. Country and city lists for monoclonal antibody manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “monoclonal antibody manufacturers”. 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 monoclonal antibody manufacturers), 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 monoclonal antibody manufacturers, and records with no verified work email.
- 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, 2,681 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.
Monoclonal antibody manufacturers by location
3 lists · largest firstEvery Monoclonal antibody manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 monoclonal antibody manufacturers, 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 monoclonal antibody manufacturers are there worldwide?
RevenueBase identified 245 monoclonal antibody manufacturers worldwide 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?
Cell Signaling Technology CST, headquartered in Danvers, tops this list with the largest team on record.
Which country has the most monoclonal antibody manufacturers?
The United States leads with 185 companies, followed by Germany (32) and the United Kingdom (28). Every monoclonal antibody manufacturers list by country and city is linked on this page.
Which city has the most monoclonal antibody manufacturers?
San Diego leads with 18 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 2,681 verified decision-maker contacts tracked across these 245 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.
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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.