Tetragram is currently accepted by:
Above Horizon Society (≥ 20/36 required)
BRAIN High IQ Society (≥ 22/36 required)
Bright High IQ Society (≥ 9/36 required)
Capabilis High IQ Society (≥ 19/36 required)
Callidus High IQ Society (≥ 16/36 required)
Canadian High IQ Society (≥ 16/36 required)
Catholic High IQ Society (≥ 23/36 required)
ELITE High IQ Society (≥ 31/36 required)
4G High IQ Society (≥ 29/36 required)
GAMMA High Range Society (≥ 9/36 required)
GIFTED High IQ Network (≥ 16/36 required)
Grand IQ Society (≥ 16/36 required)
HRTR High Range Society (≥ 5/36 required)
LPS High Range Society (≥ 36/36 required)
Magnus High IQ Society (≥ 22/36 required)
METIQ High IQ Society (≥ 26/36 required)
Myriad High IQ Society (≥ 26/36 required)
Nebula High IQ Society (≥ 22/36 required)
Odysseus4Gifted (≥ 21/36 required)
Profundus High IQ Society (≥ 29/36 required)
Real IQ Society (≥ 5/36 required)
SATORI High IQ Society (≥ 31/36 required)
SIP High Range Society (≥ 14/36 required)
Synaptiq High IQ Society (≥ 33/36 required)
THINK High IQ Society (≥ 14/36 required)
THIS High IQ Society (≥ 16/36 required)
TRIPLE4 High IQ Society (≥ 29/36 required)
Ultima IQ Society (≥ 34/36 required)
Ultramind Academy (≥ 19/36 required)
Ultramind Elite (≥ 26/36 required)
Venus High IQ Society (≥ 23/36 required)
World Genius Directory (≥ 16/36 required)
ZEN High IQ Society (≥ 26/36 required)
Other Societies may accept Tetragram too, depending on the circumstances.