Surface Oncology, Inc., a clinical-stage immuno-oncology company, engages in the development of cancer therapies in the United States. The company develops various antibodies that include NZV930, a fully human immunoglobulin isotype G4 monoclonal antibody for the production of extracellular adenosine; SRF617, a fully human IgG4 monoclonal antibody that inhibits CD39 enzymatic activity for the production of adenosine and the breakdown of adenosine triphosphate; SRF388 which is in phase II clinical trial targeting interleukin 27; GSK4381562, an antibody targeting CD112R, an inhibitory protein expressed on natural killer and T cells; and SRF114 that is in phase 1/2 clinical trials targeting the chemokine receptor CCR8. Surface Oncology, Inc. has a license agreement with GlaxoSmithKline Intellectual Property (No. 4) Limited and Vaccinex, Inc. to develop, manufacture, and commercialize antibodies, which targets SRF114. The company was incorporated in 2014 and is headquartered in Cambridge, Massachusetts.