Global Defense & National Security Systems, Inc., trading under the ticker GDEF, was a blank-check company focused on the defense and national security sector that went public in 2014. The vehicle completed its business combination with STG Group, Inc., a Northern Virginia-based information technology and professional services firm serving the U.S. federal government and defense communities. An 8-K filing dated November 19, 2015, recorded a material corporate event in the post-combination company's early life as a public entity. STG Group delivered technology solutions to defense, intelligence, and civilian agency clients across the federal market. Sign up at SpacDesk for full filing history, sponsor data, and deal analytics on GDEF and every other SPAC transaction in our database.