Peptide CDMOs in USA

Contract Development and Manufacturing Organizations (CDMOs) specializing in peptide synthesis from clinical batches to commercial-scale production. Ideal for pharmaceutical and biotech enterprises requiring GMP-compliant facilities and regulatory support. CDMOs typically hold FDA and EMA inspected facilities covering solid-phase synthesis, purification, lyophilization, and analytical method development. Major peptide CDMOs serve both innovator drug developers and generic API customers across metabolic disease, oncology, and endocrinology therapeutic areas. Bachem, PolyPeptide, Lonza, CordenPharma, and WuXi AppTec represent the largest global CDMO capacity for peptide active pharmaceutical ingredients. Showing 26 suppliers listed in USA.

Browse Peptide CDMOs 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 cdmos provides advantages in regulatory compliance, shipping timelines, and supply chain transparency for buyers in this region.

Bachem Holding AG logo

Bachem Holding AG

Switzerland / USA • CDMO

GMPCOA
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GenScript Biotech logo

GenScript Biotech

USA / China • CDMO

ISOCOA
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CPC Scientific logo

CPC Scientific

USA / China • CDMO

COA
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AmbioPharm logo

AmbioPharm

USA • CDMO

GMPCOA
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Lonza Peptides logo

Lonza Peptides

Switzerland / USA • CDMO

GMPISOCOA
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Thermo Fisher Scientific logo

Thermo Fisher Scientific

USA / Global • CDMO

ISOCOA
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Aragen Life Sciences logo

Aragen Life Sciences

India / USA (CA) • CDMO

COAGMP
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Biopeptek logo

Biopeptek

USA (Malvern, PA) • CDMO

COA
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Veranova logo

Veranova

USA • CDMO

COAGMP
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SK pharmteco logo

SK pharmteco

Korea / USA • CDMO

GMP
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Biosynth logo

Biosynth

Switzerland / Netherlands / USA • CDMO

COAGMP
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Phoenix Pharmaceuticals logo

Phoenix Pharmaceuticals

USA (CA) • CDMO

COA
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RS Synthesis logo

RS Synthesis

USA (KY) • CDMO

COA
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PurePeptide Labs logo

PurePeptide Labs

USA / Global • CDMO

COA
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KareBay Biochem logo

KareBay Biochem

USA (NJ) • CDMO

COA
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Asymchem logo

Asymchem

USA (NC) / China • CDMO

COAGMP
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CSBio logo

CSBio

USA (CA) • CDMO

GMP
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Vivitide logo

Vivitide

USA • CDMO

COA
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AmideBio logo

AmideBio

USA (Colorado) • CDMO

COA
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CordenPharma Colorado logo

CordenPharma Colorado

USA (Boulder, CO) • CDMO

GMPCOA
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Cambrex (Snapdragon Chemistry) logo

Cambrex (Snapdragon Chemistry)

USA (Waltham, MA) • CDMO

GMPCOA
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PCI Pharma Services logo

PCI Pharma Services

USA (Philadelphia, PA) • CDMO

GMPCOA
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Ajinomoto Bio-Pharma Services logo

Ajinomoto Bio-Pharma Services

USA (Grove City, OH) / Belgium / Japan / India • CDMO

GMPCOA
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Biopeptide Co. logo

Biopeptide Co.

USA (San Diego, CA) • CDMO

COA
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Catalent Pharma Solutions logo

Catalent Pharma Solutions

USA (NJ) • CDMO

GMPCOAcGMP
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Apicore (RK Pharma) logo

Apicore (RK Pharma)

USA (East Windsor, NJ) • CDMO

GMP
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How to shortlist USA CDMOs

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.