BAE Systems
Development , delivery and support of advanced defence and aerospace systems, including manufacturing military aircraft, surface ships...
http://www.baesystems.com/

Boeing Company
Products and services in the fields of commercial airlines, air traffic management, and integrated defense systems.
http://www.boeing.com/

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

Sierra Nevada Corporation
SNC is a world-class prime systems integrator and electronic systems provider known for its rapid, innovative, and agile technology solutions.
http://www.sncorp.com/

Airport Technology
The Website for the Airport Industry, including contractors, suppliers, organisations, project information and a global events diary
http://www.airport-technology.com/

Army Technology
Military technology including products and suppliers, events, and industry news.
http://www.army-technology.com