TSA Awards Largest Minority-Business Contract The Transportation Security Administration has awarded its largest contract ever to a small, minority-owned firm. Infozen Inc, an 8(a) company in Rockville, MD, will provide operations and maintenance support services for the Transportation Threat Assessment & Credentialing (TTAC) Operations and Office Computing Environment. TTAC serves as the lead for all name-based terrorist threat assessments, background checks and credentialing issues. This is an IDIQ contract with a base year and four option years and a total estimated life-cycle cost up to $148.49 million.