Radio Club
ITC Italian Telegraphy Club
GRP
Gruppo Radioamatori Paracadutisti
D.M.C. Digital
Modes Club # 3081
PODXS 070 Ohio
PSK31 Club # 1164
Eqsl.cc
Electronic QSL Card Center
E.P.C. European
Phase Shift Keying Club # 11335
30MDG 30
Meter Digital Group # 3998
NAQCC North
American QRP CW Club # 5627
NDG Natal
Digital Group # 1128
BDM Belgium
Digital Mode # 4401
FGC Feld
Hellschreiber Club # FH4811