SPARTA, Inc.. The Group's principal activity is to provide scientific, engineering and technical services as contractors and subcontractors, primarily for the U.S. military services and other agencies of the U.S. department of defense. It analyzes complex technological, strategic and tactical issues necessary to define the requirements for new tactical and strategic weapons and defense systems. It also develops engineering solutions to accommodate conflicting technological, schedule, and budgetary requirements and assists in the design, integration, evaluation and testing of software and hardware components. The activities also include research and development for laser systems, distributed interactive computer simulations, software development, advanced signal processing, information security, advanced materials and production technology and marine instrumentation. It also manufactures composite parts for aircraft and missile systems. It operates solely in the United States.