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Find GMP, contract, and API peptide manufacturers. Verified manufacturing facilities listed on The Peptide Alliance.

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PolyPeptide Group

Global GMP peptide CDMO with North American headquarters in Torrance, CA. One of the world's largest dedicated peptide manufacturers. Specializes in peptide API manufacturing from Phase I through commercial scale.

Torrance, CA (United States)National
Manufacturers

Bachem Americas

Bachem is a global leader in peptide and oligonucleotide manufacturing with US operations in Torrance, CA. Offers full GMP manufacturing services for peptide APIs and finished dosage forms. Serves biopharma companies developing peptide-based therapeutics worldwide.

Torrance, CA (United States)
Manufacturers

PolyPeptide Laboratories

A leading international peptide CDMO (Contract Development and Manufacturing Organization) with US operations. Specializes in GMP manufacturing of complex peptide APIs for commercial pharmaceutical products. Extensive regulatory expertise for FDA submissions.

Torrance, CA (United States)
Manufacturers

Bachem Americas

US subsidiary of Swiss-based Bachem Holding, a global leader in peptide chemistry. FDA-registered and GMP-compliant. Provides full-service CDMO capabilities from process development to large-scale commercial API production.

Torrance, CA (United States)National
Manufacturers

Enovachem Pharmaceuticals

Torrance-based 503B pharmaceutical outsourcing facility manufacturing sterile injectable peptide preparations including sermorelin, ipamorelin, and CJC-1295. FDA-registered and ships to licensed practitioners nationally.

Torrance, CA (United States)National
Manufacturers