Company lists · Data refreshed September 2026

Top 25 Protein production companies based in the United States

Name: Protein production companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 403 companies tracked

RevenueBase identified 403 protein production companies headquartered in the United States as of September 2026 and tracks 24,141 professional contacts across them, including 9,628 with verified work emails. San Diego is the largest hub.

This list covers protein production 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 20, 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 20, 2026 86% judged on-target in blind review

403Companies

24,141Contacts tracked

9,628Verified emails

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The 25 largest protein production companies based in the United States

Ranked by team size

Top 25 of 403 protein production companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to protein production 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	AGC Biologics	Indirect evidence	Bothell, WA, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,510 contacts →
	Indirect evidence “AGC Biologics is a leading global biopharmaceutical Contract Development and Manufacturing Organization (CDMO) with a strong commitment to delivering the highest standard of…” Source: RevenueBase Database · checked Sep 20, 2026
2	Unemployed	Partial evidence	Logan, UT, United StatesHQ checked Sep 20, 2026	n/a	2,274 contacts →
	Partial evidence “Protein specialists with pork, beef, & poultry.” Source: RevenueBase Database · checked Sep 20, 2026
3	KBI Biopharma	Indirect evidence	Durham, NC, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,645 contacts →
	Indirect evidence “KBI Biopharma is an award-winning biopharmaceutical contract services organization providing fully-integrated, accelerated drug development and biomanufacturing services to…” Source: RevenueBase Database · checked Sep 20, 2026
4	Repligen Corporation	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,254 contacts →
	Indirect evidence “Repligen, a global, bioprocessing-focused life sciences company, provides innovative solutions for the advancement of biotherapeutic manufacturing.” Source: RevenueBase Database · checked Sep 20, 2026
5	Genscript	Indirect evidence	Piscataway, NJ, United StatesHQ checked Sep 20, 2026	5,001-10,000	1,194 contacts →
	Indirect evidence “GenScript Life Science Group is a part of GenScript Biotech Corporation.” Source: RevenueBase Database · checked Sep 20, 2026
6	Aldevron	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 20, 2026	1,001-5,000	802 contacts →
	Indirect evidence “Aldevron is proud to be part of Danaher.” Source: RevenueBase Database · checked Sep 20, 2026
7	Sdix LLC	Partial evidence	Newark, DE, United StatesHQ checked Sep 20, 2026	51-200	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 20, 2026
8	ABEC	Indirect evidence	Bethlehem, PA, United StatesHQ checked Sep 20, 2026	501-1,000	430 contacts →
	Indirect evidence “ABEC engineered solutions and services for biotech manufacturing Since 1974, ABEC has been a global leader in delivering integrated process solutions and services for…” Source: RevenueBase Database · checked Sep 20, 2026
9	Antylia Scientific	Indirect evidence	Vernon Hills, United StatesHQ checked Sep 20, 2026	1,001-5,000	428 contacts →
	Indirect evidence “When scientific advancement and technological innovation converge, we meet the needs of our customers everywhere.” Source: RevenueBase Database · checked Sep 20, 2026
10	Pace Life Sciences	Indirect evidence	Oakdale, MN, United StatesHQ checked Sep 20, 2026	501-1,000	411 contacts →
	Indirect evidence “At Pace® Life Sciences, our people are driven by purpose, advancing science to improve lives across the pharmaceutical, biopharmaceutical, and gene therapy industries.” Source: RevenueBase Database · checked Sep 20, 2026
11	Project Farma PF	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 20, 2026	51-200	256 contacts →
	Indirect evidence “Project Farma is a patient-focused global leader in advancing technical operations from ideation through commercialization with a proven track record of planning, building, and…” Source: RevenueBase Database · checked Sep 20, 2026
12	Brucepac	Partial evidence	Woodburn, OR, United StatesHQ checked Sep 20, 2026	501-1,000	219 contacts →
	Partial evidence “Since 1949, BrucePac has been producing high quality protein products for retail, foodservice, and industrial customers.” Source: RevenueBase Database · checked Sep 20, 2026
13	ABL	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 20, 2026	51-200	218 contacts →
	Indirect evidence “With a 60+ year history as a service provider to the life sciences industry, Advanced BioScience Laboratories (ABL) provides a strong core of product development expertise, GMP…” Source: RevenueBase Database · checked Sep 20, 2026
14	Cytovance Biologics	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 20, 2026	201-500	217 contacts →
	Indirect evidence “Streamline your biomanufacturing programs with Cytovance Biologics!” Source: RevenueBase Database · checked Sep 20, 2026
15	Essentia Protein Solutions	Partial evidence	Ankeny, IA, United StatesHQ checked Sep 20, 2026	501-1,000	196 contacts →
	Partial evidence “Whether you are looking to clean up your label, add appealing attributes to your food or beverage product or improve the nutritional value of your brand, Essentia Protein…” Source: RevenueBase Database · checked Sep 20, 2026
16	Santa Cruz Biotechnology Scbt	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	201-500	182 contacts →
	Indirect evidence “Santa Cruz Biotechnology, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
17	Probio	Indirect evidence	Pennington, NJ, United StatesHQ checked Sep 20, 2026	201-500	181 contacts →
	Indirect evidence “ProBio is a global contract development and manufacturing (CDMO) organization, which aims to accelerate the manufacturing of life-changing drugs, discover novel therapeutic…” Source: RevenueBase Database · checked Sep 20, 2026
18	Norwich Pharma Services	Indirect evidence	Norwich, NY, United StatesHQ checked Sep 20, 2026	201-500	174 contacts →
	Indirect evidence “Norwich is a leading provider of contract manufacturing and clinical services for the pharmaceuticals industry.” Source: RevenueBase Database · checked Sep 20, 2026
19	Automated Engineering Services, INC	Indirect evidence	Vista, CA, United StatesHQ checked Sep 20, 2026	201-500	171 contacts →
	Indirect evidence “AES (Automated Engineering Services) is a full end-to-end partner for biotech and biopharma manufacturing.” Source: RevenueBase Database · checked Sep 20, 2026
20	Dakota Provisions	Indirect evidence	Huron, SD, United StatesHQ checked Sep 20, 2026	1,001-5,000	166 contacts →
	Indirect evidence “Dakota Provisions™ was founded with a focus on the idea to support family farms.” Source: RevenueBase Database · checked Sep 20, 2026
21	Enzo Life Sciences, INC	Indirect evidence	Farmingdale, NY, United StatesHQ checked Sep 20, 2026	51-200	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 20, 2026
22	Acrobiosystems	Indirect evidence	Newark, DE, United StatesHQ checked Sep 20, 2026	501-1,000	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 20, 2026
23	Vector Laboratories, INC	Indirect evidence	Newark, CA, United StatesHQ checked Sep 20, 2026	201-500	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 20, 2026
24	Avanti Research	Indirect evidence	Alabaster, AL, United StatesHQ checked Sep 20, 2026	201-500	136 contacts →
	Indirect evidence “Croda formulates its purpose as 'Smart science to improve lives™'.” Source: RevenueBase Database · checked Sep 20, 2026
25	APC	Indirect evidence	Ankeny, IA, United StatesHQ checked Sep 20, 2026	201-500	123 contacts →
	Indirect evidence “APC, Inc.” Source: RevenueBase Database · checked Sep 20, 2026

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: protein production companies. 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 protein production companies.
Partial evidence: Its own public description names part of protein production companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name protein production companies. 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 403 protein production companies based in the United States

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Protein production companies based in the United States at a glance

As of Sep 20, 2026

39.9%Verified-email coverage

59.9Average contacts per company

11-50Median size (employees)

6.5%Largest-city concentration · San Diego

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

131

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 403 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 protein production 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 “protein production 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 protein production 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 protein production 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, 9,628 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 20, 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.

Protein production companies by metro

Protein production companies in San Diego26

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 protein production 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 protein production companies are there based in the United States?

RevenueBase identified 403 protein production 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?

AGC Biologics, headquartered in Bothell, tops this list with the largest team on record.

Which city has the most protein production companies?

San Diego leads with 26 headquartered companies, followed by Gaithersburg (8) and Newark (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 9,628 verified decision-maker contacts tracked across these 403 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 20, 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.