Avionics Warehouse - Sells surplus avionics equipment from air forces around the world.

Sycos - Suppliers of avionics interface cards, support software, and associated electronic bus equipment.

Thales Avionics UK - Maker of airborne satellite communications products and navigation systems.

Ultra Electronics Holdings - Specializes in electrical and electromechanical equipment and sub-systems for military and aviation applications.

YED Avionics Databus Specialists - Aerospace electronics engineering firm providing avionics test & diagnostics equipment for ARINC 429 data systems on PC and hand held portable equipment platforms.