GB3EN The North London Television Group
- Formed in 1998 with the aim of encouraging Amateur Television (ATV) activity in the North London/Lea Valley area, and specifically to establish an Amateur Television repeater in North London.
- Alinco amateur radio transceivers manufacturer. HF Radios, Mobile transceivers, VHF UHF handhelds, receivers, scanners, power supplies and accessories
- Pioneering the integration of radio and personal computing, WiNRADiO Communications are the manufacturers of award-winning range of computer-controlled WiNRADiO receivers for professional and amateur applications.
- AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products