CSBio is a leading peptide and peptide synthesizer manufacturing company located on the edge of Silicon Valley in Menlo Park, California. Since 1993, CSBio has been providing high quality custom peptides, cGMP peptides and automated peptide synthesizers to the global biotech community. Our peptide products and peptide synthesis equipment can be found in peptide production laboratories and pharmaceutical companies worldwide. CSBio now also offers solid phase peptide synthesis resins as well as high quality Fmoc and Boc protected amino acids for use in both R&D and cGMP peptide manufacturing. Our state of the art cGMP manufacturing facility provides cGMP peptides for preclinical and clinical programs and our commercialization and regulatory teams can take you from toxicology studies through market commercialization. Our product line also includes a complete list of generic peptide APIs including the most widely used peptide APIs in the industry. Whatever your peptide requirements, CSBio can assist you in reaching your ultimate goals by offering high quality products and world class support.
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The CSBio annual revenue was $24.6 million in 2026.
Jason Chang is the CEO of CSBio.
47 people are employed at CSBio.
CSBio is based in Menlo Park, California.
The NAICS codes for CSBio are [32, 325, 32541, 3254].
The SIC codes for CSBio are [28, 2834, 283].