Lockheed Martin  
   Research, design, development, manufacture and integration of advanced technology systems, products and services. Specialties include aeronautics, electronic systems, and space systems.
   http://www.lockheedmartin.com/

BAE Systems  
   Development, delivery and support of advanced defence and aerospace systems, including manufacturing military aircraft, surface ships, submarines, fighting vehicles, radar, avionics, communications, electronics and guided weapon systems.
   http://www.baesystems.com/

European Aeronautic Defence and Space Company (EADS N.V.)  
   Military transport and fighter aircraft, defence electronics and security systems and space systems.
   http://www.eads.com/

Thales Group  
   A major electronic systems company acting in areas such as defence, aerospace, airlines security and safety, information technology, and transportation services.
   http://www.thalesgroup.com/

Boeing Company  
   Products and services in the fields of commercial airlines, air traffic management, and integrated defense systems. Also solid-state electronics development for commercial, defense and space applications.
   http://www.boeing.com/