STG Group, Inc., trading under the ticker GDEF, is the operating company formed through the business combination with Global Defense & National Security Systems, Inc., a blank-check company that completed its initial public offering in 2014 with a focus on the defense and government services sector. The May 2017 8-K filing reflects post-merger reporting activity by the combined entity, which provides information technology and professional services to U.S. federal government agencies. Global Defense & National Security Systems targeted the defense and national security vertical from inception, and the transaction with STG Group brought a revenue-generating government IT contractor to public markets. Visit SpacDesk and sign up for full access to GDEF filings, deal timelines, sponsor profiles, and the complete SPAC transaction record.