Other high IQ societies

High-IQ Society
Mensa International and American Mensa,
Sigma Society,
Top One Percent Society (TOPS),
Colloquy,
Poetic Genius Society,
Infinity International Society (IIS),Cerebrals,
The Glia Society,
The International Society for Philosophical Enquiry (ISPE),
The IQuadrivium Society,
One-in-a-Thousand Society,
Triple Nine Society,
Prometheus Society,
Ultranet, PI Society,
Giga Society,