| Yaesu USA | Kenwood Espaņa |
| Kenwood Corp. | Kenwood Net |
| Icom Europe | Icom USA |
| Collins | Adi |
| Drake | Ten-Tec |
| Alinco | Standard |
| Signal One | Kachina |
| JRC | Watkins Johnson |
| AMSAT-NA |
| ARRL |
| Czech Radio Club |
| Digigrup-EA3 |
| NIH Radio Amateur Club |
| Nortown Amateur Club |
| Puces Radio Amateur |
| SETI League |
| SETI Institute |
| SETI@Home - Big Science |
| URE |