- Air Radio Ltd - Mobile voice and data communications for airlines, airports and ground operation companies in mission critical environments.
- Empire Communications - On the jobsite in San Rafael or in the Sonoma workplace, professional 2-way radios provide instant communication with individuals or multiple groups. They operate on exclusive business frequencies, which helps limit congestion. Some solutions require FCC license.
- Halcom Communications Ltd. - Provides mobile global communications equipment, satellite phones, worldwide paging, security monitoring, medical alarms, GRS radio, call centre and dispatch.
- International Wireless Communication Expo - Annual convention for two-way radio manufacturers. Held in Las Vegas, Nevada. Includes exhibitor list and registration information.
- Mobile Relay Associates - Specializes in the engineering, installation, maintenance and security of repeater systems and repeater sites, leasing of service and equipment sales and service.
- RadioReference.com LLC - Provides reference information including news, local frequencies, and a wiki.
- Two Way Radio Directory - A directory of two way radio, mobile data, and other wireless communications resources.
- Two Way Radios - Supply two way radios, walkie talkies and accessories. Nottinghamshire based.
- Data (6)
- Emergency Communications (28)
- Equipment (507)
- Software (20)
- Trunking (23)
