HBGary is a subsidiary company of ManTech International, focused on technology security. In the past, two distinct but affiliated firms had carried the HBGary name: HBGary Federal, which sold its products to the US Government, and HBGary, Inc. Its other clients included information assurance companies, computer emergency response teams, and computer forensic investigators. On 29 February 2012, HBGary, Inc. announced it had been acquired by IT services firm ManTech International. At the same time, HBGary Federal was reported to be closed.