Northrop Grumman Corporation, headquartered in West Falls Church, Virginia, is an aerospace manufacturer active in the arms industry and the space industry. The company is the 5th largest of the top 100 contractors of the U.S. federal government; it receives over 2% of total spending by the federal government of the United States on contractors. The company's Aeronautics Systems division develops the B-21 Raider strategic bomber that can drop conventional and thermonuclear weapons, the B-2 Spirit strategic bomber, fuselage production for the Lockheed Martin F-35 Lightning II Joint Strike Fighter and F/A-18 Super Hornet, Grumman E-2 Hawkeye airborne early warning and control, MQ-4C Triton unmanned aerial vehicle, RQ-4 Global Hawk surveillance aircraft, and the NATO Alliance Ground Surveillance Force. The company's defense systems division designs the modernization of the intercontinental ballistic missile system including the LGM-35 Sentinel, the Integrated Air and Missile Defense Battle Command System, Vinnell training, and the M1156 precision guidance kit. Wikipedia