Genius Society
A high IQ society seeking members among scientists at the 99.5 percentile of intelligence (139 IQ/IEQ, SD=15).
www.geniusociety.com Details

Glia Society
Seeks to be a forum for the intelligent and to encourage intelligence-related research.
paulcooijmans.lunarpages.com Details

High IQ Society
An online community of intelligent persons.
www.smartgroups.com Details

HighPotentialsSociety
A forum for the intellectually highly gifted. Members must have an IQ of at least 132 (M=100; SD=16).
www.highpotentialssociety.org Details

International High IQ Society
Requires score of 126 on any of five free tests. Members enjoy access to chat rooms, discussion forums, online tournaments in chess, backgammon, contract bridge, and Go, as well as difficult puzzles and brainteasers, and the ability to submit works to the quarterly online magazine.
www.highiqsociety.org Details

Intertel
An organization of those with IQ scores in the 99th percentile (top 1% of the general population). The goals of the organization are to encourage meaningful intellectual fellowship, foster an exchange of ideas on any and all subjects, and to assist in research relating to high intelligence.
www.intertel-iq.org Details

Mega Society
Society with an entrance requirement at the one in a million level. Its purpose is to provide members with forums and outlets for their ideas.
www.megasociety.net Details

Ne Plus Ultra
An intellectually oriented club that seeks to gather exceptionally insightful people to discuss ideas across a variety of domains.
www.ne-plus-ultra.net Details

Pars Society
Seeks to provide a peaceful, intellectual and private forum for its members. Proof of intelligence level at or above plus 2.5 standard deviations is required for membership.
pars.eu.tt Details