System Studies & Simulation, Inc (SSSI) is a provider of modeling, simulation, and analysis services to the U.S. Department of Defense and other government agencies. The company was founded in 1977 and is headquartered in Durham, North Carolina. SSSI's services include engineering, scientific, and technical support for the development and testing of military systems, as well as training and education programs. The company has a strong focus on research and development, and has been awarded numerous contracts for innovative projects. SSSI is committed to providing high-quality services to its clients and maintaining a strong reputation in the industry.