Specialist Vendors

Niche suppliers focusing on specific peptide classes, custom synthesis projects, or unique delivery technologies. Best for complex sequences and high-specification research requirements. Specialist vendors often differentiate through proprietary synthesis platforms including liquid-phase peptide synthesis (LPPS), continuous-flow SPPS, enzyme-assisted synthesis, or specialized conjugation chemistry for ADC payloads. Their capabilities frequently cover peptide-drug conjugates, cyclic peptides, fluorescently labeled peptides, PEGylated sequences, and peptide-mimetic scaffolds not available from general-purpose suppliers. Minimum order quantities and pricing reflect the higher complexity of these custom synthesis projects. Showing 10 listed suppliers. Our directory lists specialist vendors operating across North America, Europe, Asia, South America, serving pharmaceutical development, research institutions, and commercial buyers. Browse individual profiles below for detailed information on manufacturing capabilities, certifications, minimum order quantities, product catalogs, and quality documentation.

Directory listing last reviewed October 2026.