[2] SPC had its direct predecessor Systems Planning and Research Corporation, headquartered in Maryland, which started its R&D activities in the 1950s from development of the advanced range instrumentation systems for the U.S. Army missile ranges.

[3] The conference room of SPC was also used for meetings of the Society for Operational Research, to which Viktor Vasilyevich Lozenko, a Soviet KGB officer under the cover of diplomat also belongs.

In September 1980, Lozenko bugged the conference room and acquired highly important intelligence about the current and future deployment of US nuclear weapons in Europe, American chemical weapons, US navy's chances of survival in a nuclear conflict and US position on SAALT-2 talks and even Pentagon officials' classified report entitled Current Status and Trends in the Advancement of the US Nuclear Front in the Central European Theater of War in which US mobilization capabilities, the effectiveness of laser guidance systems, plans for the destruction of 730 tons of chemical weapons and other important information.

SPC provides Systems Engineering and Technical Assistance, and support services to most of DARPA's Technology Offices.

the MK V, which are principally used by the U.S. to provide quality assurance for deployed aircraft and ships, including the F-117A and B-2 bomber.