Peptide Manufacturers in USA
Vertically integrated manufacturers that produce peptide products at their own facilities. These suppliers control the full production process from synthesis through purification and quality control. Manufacturers may serve multiple channels including CDMO partnerships, wholesale distribution, direct institutional sales, and private-label programs. Manufacturing capabilities typically include SPPS and LPPS synthesis platforms, preparative HPLC purification, lyophilization, and comprehensive analytical testing with HPLC, LC-MS, and amino acid analysis. Showing 78 suppliers listed in USA.
Browse Peptide Manufacturers operating in USA serving pharmaceutical, biotech, and research customers. These suppliers offer USA-based manufacturing, distribution, and quality control for peptide products including Bachem Holding AG, GenScript Biotech, CPC Scientific and other vetted providers. Sourcing from USA-based peptide manufacturers provides advantages in regulatory compliance, shipping timelines, and supply chain transparency for buyers in this region.
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
Thermo Fisher Scientific
USA / Global • CDMO
Sigma-Aldrich (Merck)
USA / Global • Chemical Supplier
Biotech Peptides
USA (NV) • Research Supplier
Olympia Pharmacy
USA (FL) • Pharmacy
Empower Pharmacy
USA (TX) • Pharmacy
Hallandale Pharmacy
USA (FL) • Pharmacy
Red Rock Pharmacy
USA (UT) • Pharmacy
QSC Peptides
USA / Global • Research Supplier
Ignite Peptides
USA • Research Supplier
Sports Technology Labs
USA • Research Supplier
NuRev Peptides
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
Wholesale Peptide
USA • Wholesale
Alpha Omega Peptide
USA • Research Supplier
Royal Peptides
USA / Canada • Research Supplier
Scientific Aminos
USA • Wholesale
Ion Peptide
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
KareBay Biochem
USA (NJ) • CDMO
Unrivaled Peptides
USA • Research Supplier
USA Peptide
USA (NY) • Research Supplier
Core Peptides
USA (FL) • Research Supplier
Champion Peptides
USA • Research Supplier
Valar Peptides
USA • Research Supplier
Asymchem
USA / China • CDMO
CSBio
USA • CDMO
Vivitide
USA • CDMO
AnaSpec
USA (California) • Research Supplier
Hydro Research
USA • Wholesale
Oneday Compounds
USA (Utah) • Wholesale
AMC Essentials
USA • Wholesale
Modern Aminos
USA • Wholesale
Oasis Labs
USA (Nevada) • Wholesale
EZ Peptides
USA (NM) • Wholesale
LA Peptides
USA • Wholesale
Paramount Peptides
USA (CA) • Research Supplier
Chem Labs X
USA (NV) • Research Supplier
Pinnacle Peptides
USA (Panama operations) • Bulk Wholesale
AmideBio
USA (Colorado) • CDMO
Elabscience Bionovation Inc.
USA (Houston) • Manufacturer
CordenPharma Colorado
USA (Boulder, CO) • CDMO
Patriot Peptides
USA (Brookfield, MO) • Research Supplier
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
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
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
99 Purity Wholesale
USA • Wholesale
Alfa Chemistry
United States • Chemical Supplier
BOC Sciences
United States • Chemical Supplier
PX1 RESEARCH
United States • Research Supplier
How to shortlist USA manufacturers
Listings below mix GMP manufacturers, research suppliers, and distributors. A USA address alone does not prove domestic synthesis or GMP compliance. Match the legal entity and facility address to FDA establishment registration, request inspection history and DMF references for regulated programs, and confirm which site will make your batches. Read the GMP verification guide and how to verify a COA before requesting quotes.
Research supply versus GMP API
A research-vendor COA is batch evidence for laboratory use, not a substitute for qualifying a GMP manufacturing site and quality system. For clinical or commercial API, start with established CDMOs, then run molecule-specific qualification. Compare all peptide CDMOs and third-party tested suppliers as separate starting points.