Guidance Dynamics Corporation has specialized in the development of attitude control systems (ACS), their components and ACS test equipment from its inception in 1989. Over the past ten years GDC has developed ACS components and test equipment for Government agencies such as the Naval Research Laboratory, NASA Wallops Flight Facility and the Canadian Space Agency, and for government prime contractors such as the Boeing Company, Northrop-Grumman and the Raytheon Missile Systems Company. GDC maintains a reputation for rapid prototype hardware development and full system integration.