The Society for Immunotherapy of Cancer (SITC), previously known as the International Society for Biological Therapy of Cancer (iSBTc), is a professional society of scientists, academicians, researchers, clinicians, government representatives, and industry leaders from around the world dedicated to improving outcomes in patients with cancer by advancing the science and application of cancer immunotherapy. Currently, SITC has more than 2,400 members, representing 22 medical specialties from 42 countries around the world, who are engaged in the research and treatment of cancer.