B2B Peptide Supplier Directory

Swiss public CDMO (BANB.SW). Founded 1971, headquartered in Bubendorf, Switzerland. Operates 6 GMP facilities across Switzerland, USA, and UK. Produces peptides and oligonucleotides for pharma/biotech. Leading supplier of commercial peptide APIs.

Ohio-based RUO peptide manufacturer founded 2024. Specializes in metabolic peptides (semaglutide, tirzepatide, retatrutide) and longevity research compounds. Implements triple third-party testing protocol (HPLC, MS, endotoxin).

Swiss public CDMO (PPGN.SX). Founded 1952, headquartered in Baar, Switzerland. Operates 6 GMP facilities in Sweden, Belgium, France, USA, and India. Specializes in peptide and oligonucleotide APIs. Claims to manufacture ~50% of commercially approved peptide APIs globally.

US Fortune 500 (NYSE: TMO). Global life sciences supplier providing research-grade peptides, amino acids, and analytical services. ISO 17025 accredited laboratories. Peptide offerings include catalog products and custom synthesis.

Chinese peptide manufacturer founded 1998. headquarter in Shanghai with 100,000 sqm facilities. Operates 5 global manufacturing sites. Produces 10,000+ peptides monthly with >60% global market share for peptide reagents. ISO 9001:2008 certified.

Global research chemical supplier (now part of Merck KGaA, DAX-listed). Provides peptides, amino acids, and biochemicals. ISO 17025 accredited testing labs. Extensive catalog of catalog peptides and custom synthesis.

Florida-based FDA-registered 503B outsourcing facility. Specializes in sterile injectables, GLP-1 medications, hormone replacement therapy, and IV nutrition. cGMP compliant with FDA oversight. Ships nationally.

US/Netherlands-based biotech (HKSE: 1548.HK). Provides custom peptide synthesis, gene synthesis, CRISPR services, and protein expression. ISO 9001 and ISO 13485 certified. Operates cGMP peptide facility launched 2022. Serves 100,000+ researchers globally.

Northern Ireland CDMO, privately held. Founded 1969, headquartered in Craigavon. Over £400M ($500M) expansion program completed 2024, including new 28,000 sq ft GMP peptide API facility doubling capacity. MHRA audited. Offers peptide synthesis from research to commercial scale.

Chinese peptide API manufacturer. National-level high-tech enterprise with multiple FDA certifications. Produces peptide active pharmaceutical ingredients for generic and custom projects. GMP certified facilities compliant with FDA, NMPA, and EU standards.

Texas-based 503A/503B compounding pharmacy. Located in Houston. One of the largest compounding facilities in the US with cGMP compliance. Specializes in GLP-1 peptides, hormones, and IV therapy.

US-based 503B outsourcing facility. Specializes in sterile and non-sterile compounding for hormone replacement, dermatology, and pain management. Operates cGMP-compliant facility with FDA registration.

German supplier founded 2001. Specializes in high-purity custom peptide synthesis, protected amino acids, and Fmoc/Boc reagents. ISO 9001:2015 certified. Supplies pharmaceutical and biotech companies. Known for complex peptide synthesis.

EU research supplier based in Slovakia. Offers high-purity custom peptides tested to European Pharmacopoeia (Ph. Eur.) standards. Provides certificate of analysis with each shipment. Serves academic and pharmaceutical clients.

US-based peptide supplier. Offers 99%+ purity peptides with third-party lab testing. Product range includes GLP-1 analogs, growth hormone peptides, BPC-157, and cosmetic peptides. Same-day shipping.

Florida-based 503B outsourcing facility. Specializes in sterile compounding including GLP-1 peptides, hormone therapy, and dermatology. FDA-registered with state board oversight.

Nevada-based research peptide supplier. Offers batch-specific HPLC-MS certificates of analysis for all products. Product categories include peptides, bioregulators, and amino acids. Ships within USA with 2-3 day delivery.

Utah-based 503A compounding pharmacy. Specializes in personalized medicine, hormone replacement therapy, and weight management compounds. USP <797> compliant sterile and non-sterile compounding.

UK-based peptide supplier founded 2026. Offers medical-grade cold-chain storage and shipping. Product range includes metabolic peptides and research compounds. Ships within UK with 24-hour delivery.

German biotechnology company founded 1998. Focuses on custom peptide synthesis, proteins, and antibodies for academic and industrial research. ISO 9001:2015 certified. Provides catalog peptides and custom synthesis services.

Chinese pharmaceutical-grade API manufacturer. NMPA (China FDA) certified facilities. Produces peptide active pharmaceutical ingredients and intermediates. Multiple GMP certificates for pharmaceutical production.

Florida-based boutique supplier. Known for competitive pricing on high-purity metabolic peptides including GLP-1 analogs. Community-vouched for value.

Chinese peptide manufacturer with automated production facilities. Uses solid-phase peptide synthesis (SPPS) technology for large-scale production. ISO certified. Exports bulk raw materials globally.

New York-based custom peptide synthesis company. Provides custom synthesis services for niche research applications. Offers modifications and difficult sequences. Serves academic and biotech clients.

Chinese upstream supplier. Provides bulk raw peptide materials for resellers and distributors. Offers competitive pricing for large-volume orders. Export-focused.

Chinese upstream supplier. Specializes in high-volume raw peptide materials for the wholesale market. Exports bulk orders to international distributors.

Flagged following reports of LPS Endotoxin contamination in April 2026.

Confirmed scam pattern involving ghosting and faked tracking numbers.

Legacy industry leader that voluntarily shut down in March 2026.