Advanced Simulation Technology Inc. ASTi specializes in simulated radio and communications environments, digital intercoms and large-area communications networks. http://www.asti-usa.com/

AMS Ground and naval radar, air traffic management, command and control engineering, software design and manufacturing. JV of BAE Systems (UK) and Finmeccanica (Italy). http://www.amsjv.com/

Arpege Defense Radio and satellite communications for government administrations and the armed forces. http://www.arpege-defense.com

Azimuth Technologies Military systems for target acquisition and tracking, fire coordination, and army land navigation and orientation. http://www.azimuth.co.il

BAE Systems Rokar International Ltd Electronic Countermeasures, GPS Navigation and Armament Control Systems (ACS). http://www.rokar.com

iMAR GmbH Manufacturer of inertial measurement systems for navigation, guidance and control. http://www.imar-navigation.de/englishside/imar.htm

Camber Corporation Sensor Systems Division Design and manufacture of RF, IR, and EO sensor simulators, real-time visual applications and environmental models/databases to support them. http://www.cambertx.com

Coherent Systems International Corp. Naval and Air Force sensor and systems design for Electronic Warfare systems. http://www.coherentsys.com/

CommsAudit Limited Manufacturer of RF defense subsystems including; RF Switch Matrix systems, HF Quadrature Receivers, Multicouplers and Antenna Matrix units. http://www.commsaudit.com/

Deutsche Elno Military communications technology. http://www.deutsche-elno.de

Digicomp Research Corporation Air surveillance and control systems to the military sector. http://www.digicomp.com

Digital Systems Resources Inc. Software and advanced systems architecture in support of defense applications including acoustic rapid COTS insertion to sonar systems. http://www.dsrnet.com/

EID Defence related electronic and communications equipment and systems for naval and military customers.South America http://www.eid.pt

Electro-Optical Imaging, Inc. Manufacturer of video trackers and tracking systems. http://www.eoimaging.com

Gallium Software Software components and tools for real-time mapping and tracking (geotracking) applications. InterMAPhics product used for operational Command and Control, and Air Traffic Control displays. http://www.gallium.com

HISAR Raytheon's turnkey system for the airborne surveillance and reconnaissance market in the $10 million to $30 million per system class. http://www.hisariswatching.com

Humphrey Inc. Guidance and control systems for aircraft, helicopters, missiles, drones and remotely operated vehicles. http://www.humphreyinc.com

Interad Ltd. Design and manufacture of communications electronics for government and military. Receivers, switching units, upconverters, oscillators etc. http://www.interadlimited.com

IRDAM SA Meteorological instruments and sensor systems for the naval defence industry. Automatic weather stations, digital anemometers and other weather systems. http://www.irdam.ch/

Kongsberg Defence Communications provides products for reliable and secure high-speed data and voice communications in a tactical environment. http://www.kdefence.com