Firestik Antennas
Firestik antennas, mounting accessories and coaxial cables for CB and Amateur Radio communications and technical support information
http://www.firestik.com/

Alyx Antenna Guide
Guide to the different types of antennas used in shortwave radio broadcasting, with articles about and links to the manufacturers of the same.
http://www.antenna.be/

KMA Antennas
Design and manufacture of log periodic and custom antennas primarily for amateur radio.
http://www.kmaantennas.com/

Barker and Williamson Antennas and Accessories
Barker & Williamson - manufacturing military HF broadband folded dipole antenna for NVIS and ALE,  emergency HF broadband folded dipole antenna for NVIS and ALE, commercial HF broadband folded dipole antenna for NVIS and ALE, amateur HF broadband folded dipole antenna for NVIS and ALE, fiberglass antenna masts, Miniductor and Airdux air wound coil stock.
http://www.bwantennas.com/

Hi-Q Antennas
Hi-Q-Antennas™ by W6HIQ / VE7BOC / HA5CMG are state-of-the-art, SIXTH generation, stealth design. Hi-Q, Hi-Radiation efficiency is provided by the computer design and the Mil-Spec materials used in its manufacturing.
http://www.hiqantennas.com/

John's CB
Predator 10k antennas. We carry Connex, Galaxy, Ranger radios, and also CB radio accessories & repair. Predator 10k antennas is the best CB Radio antenna out there. CONNEX 3300, CONNEX 3300HP, CONNEX 3300 - REBEL, CONNEX 3300 - PATRIOT, CONNEX 3300-GENERAL LEE, CONNEX 4800, GALAXY 33, GALAXY 44, GALAXY 66, GALAXY 73, GALAXY 77, GALAXY 88, GALAXY 99,
http://www.predator10-k.com/

Electronics Research, Inc.
Maintenance services include television broadcast antennas, iBOX digital radio systems, single and mulit-station FM antennas, filters and combiners, guyed and self-supporting towers, lightning protection and grounding solutions.
http://www.eriinc.com/

MDM Radio
Supplier of radio manuals, test equipment, and antennas and two-way radio equipment.
http://www.mdmradio.com/

F9FT
Radio amateur antenna and accessoires. Design, manufacture and selling of VHF/UHF amateur radio antennas and accessories.
http://www.f9ft.com/

AEA
AEA Technology, Inc. is a pioneer and leading provider of RF and cable test and measurement equipment for the Telecommunications, Broadband/CATV, Medical, RFID, Telemetry, Wireless, Aviation, Commercial, Government, and Two-way Radio industries.
http://www.aeatechnology.com/