Northrop Grumman Corp.

General Dynamics is a market leader in business aviation; combat vehicles, weapons systems and munitions; shipbuilding and marine systems; and mission-critical information systems and technology. The company was formed in 1952 through the combination of the Electric Boat Company, Consolidated Vultee (CONVAIR) and several others. The company grew organically and through acquisitions until the early 1990s, when they sold many of our defense-related businesses. Starting in the mid-1990s, they began expanding by acquiring combat vehicle-related businesses, additional shipyards, information-technology product and service companies and Gulfstream Aerospace Corporation.

Lockheed Martin Corp. operates as a global security and aerospace company, which engages in the research, design, development, manufacture, integration, and sustainment of technology systems, products, and services. It operates through the following business segments: Aeronautics, Missiles and Fire Control (MFC), Rotary and Mission Systems (RMS) and Space. The Aeronautics segment researches, designs, develops, manufactures, integrates, sustains, supports, and upgrades advanced military aircraft, including combat and air mobility aircraft, unmanned air vehicles, and related technologies. The MFC segment provides air and missile defence systems; tactical missiles and air-to-ground precision strike weapon systems; logistics; fire control systems; mission operations support, readiness, engineering support and integration services; manned and unmanned ground vehicles; and energy management solutions. The RMS segment offers design, manufacture, service, and support for a variety of military and commercial helicopters; ship and submarine mission and combat systems; mission systems and sensors for rotary and fixed-wing aircraft; sea and land-based missile defence systems; radar systems; the Littoral Combat Ship; simulation and training services; and unmanned systems and technologies. The Space segment comprises of the research and development, design, engineering and production of satellites, strategic, and defensive missile systems and space transportation systems. The company was founded in 1961 and is headquartered in Bethesda, MD.

The Boeing Co. is an aerospace company, which engages in the manufacture of commercial jetliners and defense, space and security systems. It operates through the following segments: Commercial Airplanes; Defense, Space and Security; Global Services; and Boeing Capital. The Commercial Airplanes segment includes the development, production, and market of commercial jet aircraft and provides fleet support services, principally to the commercial airline industry worldwide. The Defense, Space and Security segment refers to the research, development, production and modification of manned and unmanned military aircraft and weapons systems for global strike, including fighter and combat rotorcraft aircraft and missile systems; global mobility, including tanker, rotorcraft and tilt-rotor aircraft; and airborne surveillance and reconnaissance, including command and control, battle management and airborne anti-submarine aircraft. The Global Services segment provides services to commercial and defense customers. The Boeing Capital segment seeks to ensure that Boeing customers have the financing they need to buy and take delivery of their Boeing product and manages overall financing exposure. The company was founded by William Edward Boeing on July 15, 1916 and is headquartered in Chicago, IL.