SRI International (SRI), originally known as the Stanford Research Institute, is one of the world's largest contract research institutes. SRI, based in Menlo Park, California, was established by the trustees of Stanford University in 1946 as a center of innovation to support economic development in the region. In 1970, SRI formally separated from Stanford University and, in 1977, became known as SRI International. The separation was a belated response to Vietnam war protesters at Stanford University who believed that SRI's Defense Advanced Research Projects Agency (DARPA)-funded work was essentially making the university part of the military–industrial complex. Sarnoff Corporation, a wholly owned subsidiary of SRI since 1988, was fully integrated into SRI in January 2011,