- RMS International, italian distributor of Alcava batteries and power supply, since 1975 manufacture power amplifiers, watt meters, antenna tuners, TVI filters and other accessories for hams and cb radio
- Presindet Electronics produces all mode CB bands transceivers, antennas, and accessories.
- Midland Consumer Radio, Inc. is one of the most experienced and respected names in radio equipment. Midland offers the broadest line of CB transceivers in the industry, Amateur radio transceivers, VHF marine transceivers, VHF power amplifiers, and RF equipment for the broadcast industry.
- Cobra Electronics is known the world over as a manufacturer of superior quality communications and electronic equipment
Blue Danube Radio
- Blue danube Radio from Austria web site with forums, programs, links, chat and many internet related services
Trans World Radio
- Trans World Radio has been a part of Guam since 1975 when our MW (AM) station (KTWG) first took to the airwaves. Our Shortwave station (KTWR) has been on the air continuously since 1977.