Peptide Manufacturers & Suppliers in USA
157 suppliers listed in USA.
Compare peptide manufacturers and suppliers in the USA serving pharmaceutical, biotechnology, and laboratory buyers. Listings include domestic manufacturers, CDMOs, compounding facilities, wholesalers, and research suppliers covering synthesis, development, analytical testing, and catalog supply. Verify each company's manufacturing location, quality documentation, and regulatory status before purchasing.
Directory listing last reviewed August 2026.
Peptagon
United States • Retail Research Peptides
Bachem Holding AG
Switzerland / USA • CDMO
GenScript Biotech
USA / China • CDMO
CPC Scientific
USA / China • CDMO
AmbioPharm
USA • CDMO
Lonza Peptides
USA (NH) / Switzerland • CDMO
Creative Peptides
USA (NY) • CDMO
BioLongevity Labs
USA (Ohio) • Bulk Wholesale
Thermo Fisher Scientific
USA / Global • CDMO
Sigma-Aldrich (Merck)
USA / Global • Chemical Supplier
AminoVault
USA • Research Supplier
Cernum Biosciences
USA • Research Supplier
Protide Health
USA (Nevada) • Research Supplier
Orion Peptides
USA • Research Supplier
Biotech Peptides
USA (NV) • Research Supplier
Orbitrex Peptides
USA • Retail Research Peptides
Limitless Biotech
USA (FL) • Research Supplier
Pivot Labs
USA • Research Supplier
Peptide Partners
USA • Research Supplier
Paradigm Peptides
USA • Research Supplier
Olympia Pharmacy
USA (FL) • Pharmacy
Empower Pharmacy
USA (TX) • Pharmacy
Hallandale Pharmacy
USA (FL) • Pharmacy
Red Rock Pharmacy
USA (UT) • Pharmacy
Nivagen Pharmaceuticals
USA • Pharmacy
MJ Peptides
USA (FL) • Research Supplier
Peptide Supply
USA • Research Supplier
QSC Peptides
USA / Global • Research Supplier
Oath Research
USA • Research Supplier
Ignite Peptides
USA • Research Supplier
Soma Peptides
USA • Research Supplier
PeptidePure
USA • Pharmacy
PeakForm Peptides
USA • Research Supplier
Limitless Life Nootropics
USA • Research Supplier
Pure Rawz
USA • Research Supplier
Peptira
USA • Research Supplier
Sports Technology Labs
USA • Research Supplier
Swiss Chems
USA • Research Supplier
Pepta Labs
USA • Research Supplier
Cosmic Peptides
USA • Research Supplier
RetaPure
USA • Research Supplier
Apex Laboratory
USA • Research Supplier
VivePeptides
USA • Research Supplier
Lab Trust Peptides
USA • Research Supplier
NuRev Peptides
USA • Wholesale
Bulk Peptides
USA • Wholesale
Trusted Peptides
USA • Research Supplier
Peptide Pros
USA • Wholesale
Aragen Life Sciences
USA (CA) • CDMO
Biopeptek
USA • CDMO
Veranova
USA • CDMO
SK pharmteco
Korea / USA • CDMO
Biosynth
USA / Netherlands • CDMO
Phoenix Pharmaceuticals
USA • CDMO
RS Synthesis
USA (KY) • CDMO
Peptides Source
USA • Research Supplier
PeptideHQ
USA / Global • Wholesale
Wholesale Peptide
USA • Wholesale
Purity Peptides
USA • Research Supplier
Bulk Peptide Supply
USA • Wholesale
Alpha Omega Peptide
USA • Research Supplier
EIDON Research
USA (CA) • Research Supplier
BioStrata Research
USA • Research Supplier
Royal Peptides
USA / Canada • Research Supplier
Full Scale Peptides
USA • Research Supplier
Scientific Aminos
USA • Wholesale
Peptide America
USA • Research Supplier
Evolve Peptides
USA (WY) • Retail Research Peptides
Molecular Edge Peptides
USA • Research Supplier
Ion Peptide
USA • Research Supplier
Peptide Warehouse
USA • Research Supplier
Zen Labs Wholesale
USA (Atlanta, GA) • Research Supplier
Licensed Peptides Wholesale
USA • Research Supplier
OROS Research
USA (CA) • Research Supplier
PurePeptide Labs
USA / Global • CDMO
PeptideCRO
USA • CDMO
KareBay Biochem
USA (NJ) • CDMO
Unrivaled Peptides
USA • Research Supplier
LiveWell Peptides
USA • Research Supplier
USA Peptide
USA (NY) • Research Supplier
Peptide Sciences
USA (NV) • Research Supplier
Arctic Peptides
USA • Research Supplier
Core Peptides
USA (FL) • Research Supplier
Next Gen Peps
USA • Wholesale
Simple Peptides
USA (FL) • Research Supplier
Peptidology
USA • Research Supplier
Champion Peptides
USA • Research Supplier
Nationwide Peptides
USA (Tennessee) • Research Supplier
Valar Peptides
USA • Research Supplier
Valkyrie Peptides
USA • Research Supplier
Apollo Peptide Sciences
USA • Research Supplier
Ascension Peptides
USA • Research Supplier
GenX Bio
USA • Research Supplier
Asymchem
USA / China • CDMO
CSBio
USA • CDMO
Vivitide
USA • CDMO
FitAminos
USA (Arizona) • Research Supplier
AnaSpec
USA (California) • Research Supplier
New England Peptide Center
USA • Research Supplier
Peptide California
USA (California) • Research Supplier
New England Biologics
USA (New Hampshire) • Research Supplier
Hydro Research
USA • Wholesale
Oneday Compounds
USA (Utah) • Wholesale
AMC Essentials
USA • Wholesale
Modern Aminos
USA • Wholesale
Oasis Labs
USA (Nevada) • Wholesale
Welli Labs
USA • Wholesale
EZ Peptides
USA (NM) • Wholesale
Southern Aminos
USA (CA) • Chemical Supplier
LA Peptides
USA • Wholesale
BioCollex Research
USA (MD) • Research Supplier
Paramount Peptides
USA (CA) • Research Supplier
Chem Labs X
USA (NV) • Research Supplier
Bulkpeptides
USA • Wholesale
Pinnacle Peptides
USA (Panama operations) • Bulk Wholesale
Nexaph
USA • Bulk Wholesale
CanLab International
USA / Canada • Institutional
Polaris Peptides
USA • Institutional
AmideBio
USA (Colorado) • CDMO
GenX Peptides
USA • Research Supplier
Blue Sky Peptide
USA • Research Supplier
Geo Peptides
USA (Florida) • Research Supplier
Elabscience Bionovation Inc.
USA (Houston) • Manufacturer
CordenPharma Colorado
USA (Boulder, CO) • CDMO
Patriot Peptides
USA (Brookfield, MO) • Research Supplier
Wholesale Peptide Supply
USA (Costa Mesa, CA) • Wholesale
Cambrex (Snapdragon Chemistry)
USA (Waltham, MA) • CDMO
PCI Pharma Services
USA (Philadelphia, PA) • CDMO
Active Peptide Company
USA (Cambridge, MA) • Manufacturer
Ajinomoto Bio-Pharma Services
USA (Grove City, OH) / Belgium / Japan / India • CDMO
Biopeptide Co.
USA (San Diego, CA) • CDMO
Aries Peptide Research
United States • Research Supplier
Matexcel
United States • Life Science Supplier
LifeTein
USA • Service Provider
AAPPTec
USA (KY) • Chemical Supplier
Pepmic
USA / China • Service Provider
Restore Peptides
USA • Research Supplier
PSPeptides
USA • Research Supplier
Koi Peptides
USA • Research Supplier
Peptide Source
USA • Research Supplier
Soma Chems
USA • Retail Research Peptides
Verified Peptides
USA • Research Supplier
Darmerica
USA (FL) • Wholesale
Advanced ChemTech
USA (KY) • Chemical Supplier
Combi-Blocks
USA (CA) • Chemical Supplier
Catalent Pharma Solutions
USA (NJ) • CDMO
Acrotein Chembio Inc.
USA (Alabama) • Chemical Supplier
Validated Peptides
United States • Research Supplier
Creative Biolabs
United States • Research Supplier
99 Purity Wholesale
USA • Wholesale
Spartan Peptides Wholesale
USA • Wholesale
Wholesale Peptides Company
USA (Los Angeles, CA) • Wholesale
Peak Lab Peptides
USA (Watertown, SD) • Wholesale
Bulk Peptide Wholesale
USA (Oklahoma City, OK) • Wholesale
Alfa Chemistry
United States • Chemical Supplier
BOC Sciences
United States • Chemical Supplier
Creative BioMart Cosmetic Ingredients
United States • Life Science Supplier
How do you choose a US peptide supplier?
The US market includes several distinct supplier models. Compare peptide manufacturers for in-house production, peptide CDMOs for development and scale-up, and research peptide suppliers for laboratory catalog products. Buyers seeking larger quantities can also review US bulk and wholesale suppliers.
How can you verify a domestic peptide supplier?
A US address does not prove that synthesis happens domestically. Check whether the listing identifies an in-house manufacturing site, batch-specific HPLC and mass-spectrometry documentation, third-party testing, and relevant FDA inspection or registration records. Use the directory's GMP, third-party tested, and COA available pages as verification starting points.
Should you source peptides in the USA or overseas?
Domestic sourcing can shorten shipping and simplify site visits, quality agreements, and regulatory documentation. Overseas manufacturers may offer broader capacity or lower pricing. Compare this directory with the Chinese peptide manufacturers list and verify the actual manufacturing site before requesting a quote.