Abzena Limited provides services and technologies for the selection, development, and manufacture of biopharmaceutical products in North America, Europe, and internationally. Its technologies include antibody drug conjugate (ADC) linker, antibody humanization, and protein deimmunisation. The company provides phage display, Hybridoma sequencing, and developability assessment solutions for the discovery, isolation, development, and selection of antibodies; immunogenicity assessment and custom assays, as well as Cytokine Screen, an in vitro assay to evaluate the risk of biopharmaceutical products causing cytokine storm prior to it being progressed into clinical development. It also offers antibody and protein engineering solutions, which cover Ig class and isotype switching, antibody reformatting and humanization, protein deimmunisation, affinity maturation, antibody and protein production, and bioassays and bioanalytics; and ADCs. In addition, the company provides solutions in the area of bioassays, which cover drug-conjugate and payload characterization, binding and competition assays, cell health assays, functional assays, Fc binding and function assays, and bespoke assay development; bioanalytics that cover candidate selection, biosimilarity, protein and peptide identification, ADC characterization, and analytical method development; peptide synthesis, modifications, and analytics; mammalian manufacturing, which cover cell line, process, and analytical development, as well as cell banking; peptide synthesis, modifications, and analytics; bioconjugates and ADCs manufacturing; and custom, library, HPAPI, and payload synthesis. Further, it offers full-time equivalent and protein/BioNMR services; and analytical solutions. It serves biopharmaceutical companies and academic groups. The company was incorporated in 2014 and is headquartered in Cambridge, the United Kingdom. As of October 11, 2018, Abzena Limited was taken private.