Peptide Therapy in California
35 listings · California
Browse 35 verified peptide businesses in California — clinics, compounding pharmacies, research labs, and trusted suppliers. All listings are reviewed by the The Peptide Alliance editorial team.
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.
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.
AnaSpec
Leading biotech CMO with 30+ years of peptide manufacturing experience. 44,000 sq ft facility in California's Silicon Valley. Manufactures custom GMP peptides and dyes for diagnostics, biopharmaceuticals, and cosmetics.
ImprimisRx
San Diego-based 503B outsourcing facility offering compounded ophthalmology, urology, and specialty medications including peptide-based preparations. FDA-registered, PCAB-accredited, and ships nationally to healthcare providers.
CPC Scientific
CDMO specializing in large-scale, late-phase, and commercial GMP peptide and oligonucleotide manufacturing. Annual peptide API production capacity exceeds 1,000 kg. Serves clinical and commercial pharmaceutical clients.
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.
Abzena
Integrated biologics and peptide CDMO with San Diego bioconjugation facilities. Offers end-to-end pharmaceutical development and manufacturing services including custom peptide-drug conjugate production for biopharma.