Tybrin Corp., Fort Walton Beach, Fla. (N68936-10-D-0034); Lockheed Martin Corp., Lockheed Martin Information Systems & Global Services, Gaithersburg, Md. (N68936-10-D-0035); and L-3 Services, Inc., Chantilly, Va. (N68936-10-D-0036), are each being awarded cost-plus-fixed-fee indefinite-delivery/indefinite-quantity contracts for services in support of the Naval Air Warfare Center Weapons Division’s Combat Environment Simulation Division. Services to be provided include the acquisition and deployment of equipment or systems designed to provide a dense, realistic, and electromagnetic (encompassing radio frequency, infrared, electro-optic, and laser energy) environment to be used by the tri-service community for weapon systems development; training; test and evaluation; test and evaluation of defense suppression systems; electronic warfare systems; electronic countermeasures equipment; and electronic counter-countermeasures equipment. The estimated level of effort for these contracts over the five-year ordering period is 577 man-years. Tybrin Corp.’s ceiling is $241,540,417; Lockheed Martin Corp., Lockheed Martin Information Systems & Global Services’ ceiling is $207,806,616; and L-3 Services, Inc.’s ceiling is $210,998,077. Each company will have the opportunity to bid on each individual task order. Work will be performed in China Lake, Calif. (80 percent), and Point Mugu, Calif. (20 percent), and is expected to be completed in May 2015. Contract funds will not expire at the end of the current fiscal year. These contracts were solicited under a multiple award electronic request for proposals; 30 firms were solicited and three offers were received. The Naval Air Warfare Center Weapons Division, China Lake, Calif., is the contracting activity.