Company lists · Data refreshed September 2026

Top 25 Protein engineering firms based in the United States

RevenueBase identified 177 company matches for protein engineering firms associated with the United States as of September 2026 and tracks 3,400 professional contacts across them, including 1,708 with verified work emails. San Diego is the largest hub.

This list covers company matches for protein engineering firms 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
177Companies
3,400Contacts tracked
1,708Verified emails
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The 25 largest protein engineering firms based in the United States

Ranked by team size
Top 25 of 177 company matches for protein engineering firms 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 matchBethlehem, PA, United StatesHQ recorded Sep 17, 2026501-1,000430 contacts →

Exact match

“ABEC engineered solutions and services for biotech manufacturing Since 1974, ABEC has been a global leader in delivering integrated process solutions and services for…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchBoulder, CO, United StatesHQ recorded Sep 17, 202651-200228 contacts →

Exact match

“Watchmaker Genomics is a biotechnology company that specializes in advanced enzymology to develop precision tools for life sciences.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchSan Carlos, WA, United StatesHQ recorded Sep 17, 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 17, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact matchNewark, CA, United StatesHQ recorded Sep 17, 202651-200122 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchFremont, CA, United StatesHQ recorded Sep 17, 202651-20096 contacts →

Exact match

“AnaSpec, a subsidiary of Kaneka Eurogentec, is a globally recognized biotechnology company that manufactures and sells custom and catalog Peptides, Fluorogenic and FRET Assay…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchSeattle, WA, United StatesHQ recorded Sep 17, 202651-20079 contacts →

Exact match

“Arzeda, The Protein Design Company™, is a synthetic biology company that creates novel proteins, enzymes and specialty chemical products that compete on performance, cost and…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchNorcross, GA, United StatesHQ recorded Sep 17, 202651-20063 contacts →

Exact match

“RayBiotech is a leading life sciences company providing proteomic discovery tools to scientists in 85 countries worldwide.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchBoulder, CO, United StatesHQ recorded Sep 17, 202611-5061 contacts →

Exact match

“Mosaic Biosciences transforms concepts into drug candidates with end-to-end discovery capabilities and a first-class multidisciplinary team.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchSan Diego, CA, United StatesHQ recorded Sep 17, 202651-20055 contacts →

Exact match

“Eton Bioscience Inc.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchEssex Junction, VT, United StatesHQ recorded Sep 17, 202651-20050 contacts →

Exact match

“Prolytix, formerly Haematologic Technologies, has 30+ years of experience in protein chemistry, which ensures our team will identify and solve the challenges of your large…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 17, 202611-5039 contacts →

Exact match

“Boston-based AI Proteins is a biotech company on a mission to re-imagine protein therapeutics with a novel approach for designing entirely new proteins.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchFrederick, MD, United StatesHQ recorded Sep 17, 202611-5036 contacts →

Exact match

“Kemp Proteins, LLC (formerly Kempbio) is a privately-owned, USA-based contract research and manufacturing organization located in Frederick, MD.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchLakewood, NJ, United StatesHQ recorded Sep 17, 202651-20036 contacts →

Exact match

“Worthington is a privately owned, ISO9001 Certified.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchBerkeley, CA, United StatesHQ recorded Sep 17, 202611-5035 contacts →

Exact match

“We envision a world where we continuously, sustainably, and affordably improve human life with biocatalysis.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchSan Diego, CA, United StatesHQ recorded Sep 17, 202611-5032 contacts →

Exact match

“AlivaMab Biologics provides fully integrated solutions for biologics drug discovery through our continuously expanding platform of innovative capability modules.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchSeattle, WA, United StatesHQ recorded Sep 17, 202611-5031 contacts →

Exact match

“Monod Bio is a pioneer company in the design of de novo protein biosensors.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 17, 202611-5031 contacts →

Exact match

“Atomwise is a preclinical pharma company revolutionizing how drugs are discovered with AI.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 17, 202611-5026 contacts →

Exact match

“Ordaōs is a human-enabled, machine-driven drug design company.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchAthens, United StatesHQ recorded Sep 17, 202611-5025 contacts →

Exact match

“Athens Research and Technology, Inc.(ART) is a dynamic life science company and recipient of the Globe Award as Georgia’s 2022 Exporter of the Year.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchSeattle, WA, United StatesHQ recorded Sep 17, 202611-5024 contacts →

Exact match

“Archon is a biotechnology company developing computationally designed proteins to unlock powerful therapeutic targets that lie beyond the reach of existing modalities and to…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Sep 17, 202651-20024 contacts →

Exact match

“Creative Biolabs is specialized in providing custom biotechnology and pharmaceutical services that cover the full scope of biotechnology needs of early drug discovery and drug…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchSeattle, WA, United StatesHQ recorded Sep 17, 202611-5024 contacts →

Exact match

“Cyrus Biotechnology is a pre-clinical-stage biotech company combining protein design and screening to create novel biologics for serious unmet medical needs.”

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

Showing 25 of 177 protein engineering firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,708 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Protein engineering firms based in the United States at a glance

As of Sep 17, 2026
50.2%Verified-email coverage
19.2Average contacts per company
1-10Median size (employees)
7.3%Largest-city concentration · San Diego
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
94
11-50
54
51-200
20
201-500
7
501-1,000
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 177 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 “protein engineering firms” 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 1,708 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 “protein engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many protein engineering firms are there based in the United States?

RevenueBase identified 177 company matches for protein engineering firms 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?

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

Which city has the most protein engineering firms?

San Diego leads with 13 company records, followed by Boston (10) and Seattle (9).

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 1,708 professional contacts with verified work emails tracked across these 177 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.