Telegrafie Verbände und Interessengruppen
| AGCW-DL | Arbeitsgemeinschaft Telegrafie e.V. |
| CWops | The CW Operators Club |
| DTC | Deutscher Telegrafie Club |
| EHSC | Radio Telegrahy Extremely High Speed Club |
| EUCW | The European CW Association |
| FMC | Friends of S. F. B. Morse Club |
| HSC | Radio Telegrahy High Speed Club |
| SHSC | Radio Telegrahy Super High Speed Club |
| VHSC | Radio Telegrahy Very High Speed Club |