Established in 1990, Systems Development Corporation (SDC) is a systems engineering and support services providing firm. It is a certified Hub-Zone and Small Disadvantaged Business (SDB) serving the governmental and industrial sectors. Based in Huntsville, Ala., the firm provides a host of services, such as software engineering, systems design and integration, technical support engineering, testing, evaluation, software assessment, manufacturing, fabrication, program management support and administrative support services. Systems Development Corporation (SDC) has a top secret Facility Clearance (FCL) to meet the needs of the United States Navy and the United States Marine Corps.