GL Biochem (Shangai) Ltd. GL Biochem is an internationally well-recognized peptide reagent, custom peptide and antibody manufacturing company with a 350,000 sq ft headquarter based in Shanghai and a total of 5 global manufacturing sites and 2 R&D centers worldwide, having more than 1000 staffs including top professionals with strong Biotech industry background. GL Biochem is able to provide high quality, value-added and high-tech peptide related products through strong and diverse capability, and more than 13 years’ excellent management experience and economy of scale.