GASL is a part of ATK, an aerospace and defense company that has more than 15,000 employees in over 20 U.S. states, as well as Puerto Rico. ATK maintains nearly 60 domestic and international facilities. It operates through several business groups, including ATK Armament Systems, ATK Mission Systems and ATK Space Systems. The company s mission systems unit is a supplier of electronic warfare, precision systems, aerospace structures, and intelligence, surveillance and reconnaissance programs. ATK s customers include the Army, Air Force, Navy and related government agencies. It additionally offers advanced missile and laser warning system and special mission aircraft that provide real-time imagery and data to confront emerging threats.