Company lists · Data refreshed November 2026

Top 23 Protein expression services based in the United States

RevenueBase identified 110 company matches for protein expression services associated with the United States as of November 2026 and tracks 3,346 professional contacts across them, including 1,127 with verified work emails. San Diego is the largest hub.

This list covers company matches for protein expression services 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 November 6, 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 Nov 6, 2026 How this list was built
110Companies
3,346Contacts tracked
1,127Verified emails
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The 23 largest protein expression services based in the United States

Ranked by team size
Top 23 of 110 company matches for protein expression services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchPiscataway, NJ, United StatesHQ recorded Nov 6, 20265,001-10,0001,305 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchShelton, CT, United StatesHQ recorded Nov 6, 202651-200274 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNewark, CA, United StatesHQ recorded Nov 6, 2026201-500143 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFremont, CA, United StatesHQ recorded Nov 6, 202651-200101 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWoburn, MA, United StatesHQ recorded Nov 6, 2026501-1,00095 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNorcross, GA, United StatesHQ recorded Nov 6, 202651-20071 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEssex Junction, VT, United StatesHQ recorded Nov 6, 202651-20044 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLakewood, NJ, United StatesHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Worthington is a privately owned, ISO9001 Certified.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchFrederick, MD, United StatesHQ recorded Nov 6, 202611-5037 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDavis, CA, United StatesHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Expression Systems is a leader in Baculovirus (BEVS) mediated protein expression technology and insect cell culture.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNew York, United StatesHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWest Lafayette, IN, United StatesHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Novilytic provides simpler, cleaner, protein-quality insights that streamline analysis and enable labs to do more with less.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKalamazoo, MI, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Proteos is committed to providing a quality foundation for drug discovery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCambridge, MA, United StatesHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Amide Technologies offers on-demand complex peptide manufacturing at unprecedented speed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Antigen Discovery, Inc.(formerly ImmPORT Therapeutics, Inc.) provides research services and products specializing in high throughput protein microarray technology that simplifies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“At Exreprotein, we regard our customers as essential partners and strive to exceed their expectations with superior product quality, exceptional services, and outstanding value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchTallahassee, FL, United StatesHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“QuarryBio has developed a novel analytical method that provides high resolution analysis of protein 3-dimensional structure and binding interactions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAthens, United StatesHQ recorded Nov 6, 202611-509 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Golgi is redefining computational proteomics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Carlos, CA, United StatesHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Range Bio is building the world’s first platform dedicated to translational proteomics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSomerset, NJ, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“LifeTein®, located in Somerset, New Jersey, was founded in 2008 with a simple vision: to increase both the quality and understanding of life one protein at a time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCamarillo, CA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“At HTL Biosolutions, Inc, our mission is to provide high quality research services to our clients who are developing protein and peptide therapeutics by employing innovative…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

“We specialize in quantitative multiplexed proteomic applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 110 protein expression services based in the United States

See the full list, filter by size, metro and specialty, and access 1,127 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Protein expression services based in the United States at a glance

As of Nov 6, 2026
33.7%Verified-email coverage
30.4Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · San Diego
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
31
51-200
13
201-500
4
501-1,000
4
1,001-5,000
1
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 110 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 expression services” 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 1,127 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 November 6, 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 expression services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many protein expression services are there based in the United States?

RevenueBase identified 110 company matches for protein expression services associated with the United States as of November 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?

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

Which city has the most protein expression services?

San Diego leads with 9 company records, followed by Madison (4) and Newark (4).

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 1,127 professional contacts with verified work emails tracked across these 110 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 November 6, 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.