Proteintech Group Inc., founded in 2001, is a leading manufacturer of antibodies, proteins, nanobodies, and immunoassays. Proteintech has the largest proprietary portfolio of self-manufactured antibodies covering 2/3 of the human proteome. With over 200,000 products cited and confirmed specificity, Proteintech offers antibodies and immunoassays across research areas. In addition, Proteintech produces cytokines, growth factors and other proteins that are human expressed, bioactive and cGMP-grade. Proteintech sites are ISO13485 and ISO9001 accredited.