Company lists · Data refreshed September 2026

Top 25 Recombinant protein producers based in the United States

RevenueBase identified 409 company matches for recombinant protein producers associated with the United States as of September 2026 and tracks 16,481 professional contacts across them, including 8,267 with verified work emails. San Diego is the largest hub.

This list covers company matches for recombinant protein producers 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 21, 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 21, 2026 How this list was built
409Companies
16,481Contacts tracked
8,267Verified emails
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The 25 largest recombinant protein producers based in the United States

Ranked by team size
Top 25 of 409 company matches for recombinant protein producers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchBothell, WA, United StatesHQ recorded Sep 21, 20261,001-5,0002,510 contacts →

Exact match

“AGC Biologics is a leading global biopharmaceutical Contract Development and Manufacturing Organization (CDMO) with a strong commitment to delivering the highest standard of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchDurham, NC, United StatesHQ recorded Sep 21, 20261,001-5,0001,645 contacts →

Exact match

“KBI Biopharma is an award-winning biopharmaceutical contract services organization providing fully-integrated, accelerated drug development and biomanufacturing services to…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchPiscataway, NJ, United StatesHQ recorded Sep 21, 20265,001-10,0001,194 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSan Diego, CA, United StatesHQ recorded Sep 21, 2026501-1,000670 contacts →

Exact match

“At BioLegend, we are committed to providing researchers with the most comprehensive and cutting-edge high-quality reagents for life science research.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchNewark, DE, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchWaltham, MA, United StatesHQ recorded Sep 21, 2026201-500326 contacts →

Exact match

“Sobi is an international specialty healthcare company dedicated to developing treatments and extensive patient support networks for people with rare and difficult to treat…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchAnn Arbor, MI, United StatesHQ recorded Sep 21, 2026201-500287 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchSan Jose, CA, United StatesHQ recorded Sep 21, 2026201-500263 contacts →

Exact match

“Takara Bio USA, Inc.(formerly Clontech Laboratories, Inc.), a Takara Bio company, develops, manufactures, and distributes a wide range of life science reagents under the Takara®…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchSantee, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10Exact matchRosemont, IL, United StatesHQ recorded Sep 21, 2026201-500240 contacts →

Exact match

“For when you need it all.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchDallas, TX, United StatesHQ recorded Sep 21, 2026201-500182 contacts →

Exact match

“Santa Cruz Biotechnology, Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchPennington, NJ, United StatesHQ recorded Sep 21, 2026201-500181 contacts →

Exact match

“ProBio is a global contract development and manufacturing (CDMO) organization, which aims to accelerate the manufacturing of life-changing drugs, discover novel therapeutic…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchFarmingdale, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14Exact matchSan Carlos, WA, United StatesHQ recorded Sep 21, 202651-200155 contacts →

Exact match

“Born from the founders’ recognition that their diverse but complementary skills and experiences would enable them to successfully address challenges that others had not, Nautilus…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchNewark, DE, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16Exact matchLebanon, NH, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchNewark, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19Exact matchAlabaster, AL, United StatesHQ recorded Sep 21, 2026201-500136 contacts →

Exact match

“Croda formulates its purpose as 'Smart science to improve lives™'.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchNewark, CA, United StatesHQ recorded Sep 21, 202651-200122 contacts →

Exact match

“ATUM is an industry-leading provider of life science tools and solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchMonmouth Junction, NJ, United StatesHQ recorded Sep 21, 20261,001-5,000122 contacts →

Exact match

“MedChemExpress (MCE) is a leading global supplier of life science reagents, dedicated to providing innovative solutions for scientific research and drug development.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchRockville, MD, United StatesHQ recorded Sep 21, 2026201-500119 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchFremont, CA, United StatesHQ recorded Sep 21, 202651-200116 contacts →

Exact match

“Eurofins DiscoverX, the products company of Eurofins Discovery, is committed to enabling and accelerating multi-modality drug discovery and development from discovery to QC lot…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchRockville, MD, United StatesHQ recorded Sep 21, 202651-200115 contacts →

Exact match

“Ascend is gene to GMP partner with deep expertise in advanced therapy development and commercialization.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSan Diego, CA, United StatesHQ recorded Sep 21, 202651-200115 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 409 recombinant protein producers based in the United States

See the full list, filter by size, metro and specialty, and access 8,267 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Recombinant protein producers based in the United States at a glance

As of Sep 21, 2026
50.2%Verified-email coverage
40.3Average contacts per company
11-50Median size (employees)
9.3%Largest-city concentration · San Diego
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
151
11-50
144
51-200
72
201-500
19
501-1,000
14
1,001-5,000
8
5,001-10,000
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 409 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 “recombinant protein producers” 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 8,267 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 21, 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 “recombinant protein producers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many recombinant protein producers are there based in the United States?

RevenueBase identified 409 company matches for recombinant protein producers 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?

AGC Biologics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most recombinant protein producers?

San Diego leads with 38 company records, followed by Boston (11) and Houston (10).

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 8,267 professional contacts with verified work emails tracked across these 409 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 21, 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.