There are 11 major commands among the tenant units, including: * United States Army Communications-Electronics Command (CECOM) * United States Army Combat Capabilities Development Command (CCDC) * United States Army Test and Evaluation Command (ATEC) * Edgewood Arsenal * Adelphi Laboratory Center * The Army Reserve Information Operations Command * Unified Cross Domain Services Management Office * HQ, U.S. Army Contracting Command (Army Contracting Command –APG, Adelphi Contracting Division) * U.S Army 93rd Signal Network - Network Enterprise Center * Logistics Readiness Center * U.S. Army Cyber Operation Group – 335th Signal Command * Blossom Point Research Facility