Northrop Grumman Systems Corporation, San Diego, California, is being awarded a potential $89,447,206 indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee, multiple award contract to provide research, development, test, and evaluation of emerging surveillance technologies, sensors and systems with potential for applicability in the areas of air, ground, and shipboard intelligence, surveillance, and reconnaissance and information operations systems. Stanley Associates Incorporated, Fairfax, Virgina, is being awarded a a potential $77,775,689. General Dynamics Information Technology Incorporated, Fairfax, Virginia, could receive as much as $76,559,590. Science Applications International Corporation, McLean, Virginia, will receive a potential $72,642,658, and L-3 Services Incorporated, Mount Laurel, New Jersey, could receive $62,640,527. Awardees will compete for task orders during the ordering period. Each contract includes one two-year option. Space and Naval Warfare Systems Center Pacific, San Diego, California, is the contracting activity.