Company lists · Data refreshed September 2026

Top 25 Peptide synthesis companies based in the United States

RevenueBase identified 129 company matches for peptide synthesis companies associated with the United States as of September 2026 and tracks 1,493 professional contacts across them, including 417 with verified work emails. San Diego is the largest hub.

This list covers company matches for peptide synthesis companies 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 20, 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 20, 2026 How this list was built
129Companies
1,493Contacts tracked
417Verified emails
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The 25 largest peptide synthesis companies based in the United States

Ranked by team size
Top 25 of 129 company matches for peptide synthesis companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchNorth Augusta, SC, United StatesHQ recorded Sep 20, 2026501-1,000174 contacts →

Exact match

“AmbioPharm is a global custom synthetic peptide CDMO founded in 2005 and headquartered in North Augusta, South Carolina, USA specializing in developing highly efficient…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchNewark, CA, United StatesHQ recorded Sep 20, 202651-200136 contacts →

Exact match

“Protagonist Therapeutics (Nasdaq: PTGX) is a biopharmaceutical company with a proprietary technology platform focused on discovering and developing peptide-based new chemical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchFremont, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
4Exact matchMenlo Park, CA, United StatesHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“CSBio is a leading peptide and peptide synthesizer manufacturing company located in Silicon Valley, California.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchNeedham Heights, MA, United StatesHQ recorded Sep 20, 202651-20073 contacts →

Exact match

“Evolved By Nature, pioneers in natural peptide discovery.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchNewton, MA, United StatesHQ recorded Sep 20, 202611-5049 contacts →

Exact match

“3-D Matrix, North America, based in Newton, Massachusetts, is a wholly owned subsidiary of 3-D Matrix, Ltd, Tokyo, Japan.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLewisville, TX, United StatesHQ recorded Sep 20, 202651-20043 contacts →

Exact match

“Bio-Synthesis is a biology contract manufacturer of high-quality nucleic acids, peptides and other molecular biology products for the research, diagnostic and therapeutic…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchRocklin, CA, United StatesHQ recorded Sep 20, 2026501-1,00035 contacts →

Exact match

“With 25 years of experience, CPC Scientific is a globally recognized Contract Research, Development, and Manufacturing Organization (CRDMO) that specializes in synthetic GMP…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchDublin, OH, United StatesHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“Since its founding in 1992, bioWORLD has established, maintained, and succeeded in its core mission to manufacture and supply high-quality molecular tools, biological reagents…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchMinnetonka, MN, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Nu-Tek BioSciences is the market leader in animal-free peptones and specialty yeast extracts.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSan Diego, United StatesHQ recorded Sep 20, 202651-20021 contacts →

Exact match

“Abgent, a WuXi AppTec company, is a leading manufacturer of primary antibodies with more than a decade of experience.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNorthbrook, IL, United StatesHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Endevica Bio is a world-leader in the discovery of first-in-class peptide drug candidates.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchMalvern, PA, United StatesHQ recorded Sep 20, 202651-20016 contacts →

Exact match

“Biopeptek Pharmaceuticals was founded with vision of improving human life through a dedication to high-quality peptides in research, discovery and clinical innovation, made…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBothell, WA, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Blue Heron has been collaborating with some of the most brilliant minds in the industry to create millions of complex genes using our proprietary GeneMaker® multi-technology…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchBurlingame, CA, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Phoenix Pharmaceuticals is a business-to-business (B2B) peptide wholesaler.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchMadison, WI, United StatesHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“Nimble Therapeutics is a biotechnology company dedicated to delivering on the promise of oral peptide therapeutics.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchCambridge, MA, United StatesHQ recorded Sep 20, 20261-1014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchAlachua, FL, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Alchem Laboratories is a custom research organization performing custom organic synthesis, cGMP manufacturing and analytical services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchShirley, MA, United StatesHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“SciTide's custom peptide synthesis platform is built on flexible, automated, and robust manufacturing processes that leverage internally designed AI tools to aid in the evaluation…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchLouisville, KY, United StatesHQ recorded Sep 20, 202651-20010 contacts →

Exact match

“AAPPTec is the one source for the materials and innovative equipment utilized in the synthesis, purification and isolation of peptides.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchFarmingdale, NJ, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“Sarchem Laboratories offers a combined 60 years of professional experience in the field of pharmaceutical intermediaries, specializing in custom synthesis.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 20, 202611-508 contacts →

Exact match

“We develop research reagents and assays that lead to diagnostics and drug treatments for debilitating diseases with a focus on Lipid and Cell Signaling.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchVicksburg, MI, United StatesHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Bridge Organics Company is a contract research and chemical manufacturing company specializing in multi-step synthesis of complex organic compounds and developing chemical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSomerset, NJ, United StatesHQ recorded Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase
25Exact matchTustin, United StatesHQ recorded Sep 20, 202611-507 contacts →

Exact match

“Pyxis Biologix, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 129 peptide synthesis companies based in the United States

See the full list, filter by size, metro and specialty, and access 417 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Peptide synthesis companies based in the United States at a glance

As of Sep 20, 2026
27.9%Verified-email coverage
11.6Average contacts per company
1-10Median size (employees)
6.2%Largest-city concentration · San Diego
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
42
51-200
13
201-500
3
501-1,000
3
1,001-5,000
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 129 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 “peptide synthesis companies” 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 417 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 20, 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 “peptide synthesis companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many peptide synthesis companies are there based in the United States?

RevenueBase identified 129 company matches for peptide synthesis companies 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?

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

Which city has the most peptide synthesis companies?

San Diego leads with 8 company records, followed by Louisville (6) and Boston (5).

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 417 professional contacts with verified work emails tracked across these 129 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 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 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.