Marine Communications
- Australian Maritime Communication Stations
- Internet E-Mail at sea WITHOUT using Inmarsat
- Inmarsat
- The Global Maritime Distress and Safety System (GMDSS)
- Globe Wireless
- Marine Radio Network - WLO (Mobile Marine Radio, Inc.)
- Marineworks, Ltd.
- Maritime Communication Services (Harris Corp.)
- The Maritime Mobile Service Network
- The Maritime Operations Center (New Zealand)
- Message Center, Inc. HF SSB email radio telex
- Naval Technology - Navigation and Satellite Communications
- Radio Officers Association of Europe
- RT Training Specialist Courses in Marine Radio Communications (UK)
TEAMTalk Satellite (was IMC)