System Planning Corporation (SPC) is a Virginia-based corporation founded in 1970 that produces military electronics, such as flight control systems, radar, and Systems Engineering and Technical Assistance in airwarfare, cybersecurity, program management and research of advanced weapons systems, advanced space systems and advanced microsystems for the United States Department of Defense (DoD). SPC was acquired by ECS Federal, LLC in 2015. It is principal support contractor to cabinet-level departments, including the Department of Defense, Justice and State, and Homeland Security.