USA Peptide Suppliers

The largest hub for peptide manufacturing and research supply. Featuring FDA-registered facilities, cGMP compounding pharmacies, and world-leading biotech research partners across Florida, California, and Texas. US-based CDMOs including Bachem's Torrance and Vista facilities, PolyPeptide, and AmbioPharm provide GMP peptide manufacturing capacity spanning solid-phase synthesis, purification, and aseptic fill-finish. The FDA's Center for Drug Evaluation and Research (CDER) directly oversees peptide drug substance manufacturing through establishment registration and cGMP inspection programs. Recent Import Alert 66-40 (May 2026) expanded enforcement against foreign peptide API manufacturers, accelerating reshoring demand to US domestic suppliers. North American peptide API manufacturing capacity is projected to grow from approximately 18% to 28% of global capacity by 2029 according to industry analysts, with over $3.1 billion in reshoring-related peptide manufacturing investment announced since January 2025. Showing 147 verified suppliers in USA.

Our directory lists peptide CDMOs, bulk wholesalers, compounding pharmacies, institutional research suppliers, and specialist vendors operating in USA. Supplier types span CDMO, Bulk Wholesale, Chemical Supplier, Research Supplier, Retail Research Peptides, Pharmacy, Wholesale, Institutional, Manufacturer, Service Provider, Life Science Supplier. Browse individual profiles below for detailed information on manufacturing capabilities, certifications, minimum order quantities, and product offerings.

Directory listing last reviewed July 2026.