This article is from the Mensa FAQ, by Phil Hill phil@miracle.com with numerous contributions by others.
The currently active societies include:
American Mensa, Ltd., 2626 E. 14th St., Brooklyn, NY 11235-3992 (718)
934-3700--Open to individuals who have scored in the top 2% on a
standardized intelligence test. Founded in 1945 by R.Berrill and
L.Ware. Name of Journal: Mensa Bulletin
Camelopard Society, P.O. Box 16898, San Diego CA 92116--Open to
individual who have scored in the top 2% on a standardized intelligence
test. Founded in 1988 by Lendon Best. Name of Journal: G'raffiti
International Society for Philosophical Enquiry, c/o Harry Callahan, PO
Box 34304, Omaha, NE 68134 -- Open to individuals who score in the
99.9th percentile on a standardized adult intelligence test. Founded
1974 by Chris Harding. Name of Journal: Telicom
The International High Five Society, 3546 Devon Hill Road, Toledo, OH
43606-1102 (419) 474-3809 FAX: (419) 474-1009, e-mail:
72717.3507@compuserve.com.--High Five is open to anyone testing above
the 95th percentile on a standardized test of intelligence.
Intertel, P.O. Box 150580, Lakewood, CO 80215 (303) 797-7210-- Open to
individuals who have an IQ at or above the 99th percentile on an
accepted test. Founded in 1967 by Ralph Haines. Name of Journal:
Integra
Mega Society, c/o Rick Rosner, 5139 Balboa Blvd #303, Encino, CA
91316-3430--Open to individuals with an IQ in the 99.9999th percentile.
Founded in 1982 by Ronald K Hoeflin. Name of Journal: Noesis
One-In-A-Thousand, PO Box 539, New York, NY 10101 (Ronald K. Hoeflin,
Founder)--Open to persons with measured IQs in the top 1/10% of the
population. Name of Journal: Oath
Prometheus Society, c/o Robert Dick, 13 Speer Street, Somerville, NJ
08876--Open to individuals exceeding the 99.997th percentile of general
intelligence. Founded in 1982 by Ronald K Hoeflin. Name of Journal:
Gift of Fire
Sinistral SIG, 200 Emmett Ave., Derby, CT 06418 (203) 735-1759-- Open to
left-handed people whose IQs are in the top 2% of the population and who
are eligible to be members of Mensa.
Triple Nine Society, PO Box 29, Dover, MA 02030-0029--Open to those
individuals who score in the top 99.9th percentile on a standardized
intelligence test.
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
Society Minimum Members Potential
Percentile Worldwide Members#
High Five 95 ? 250,000,000
Mensa 98 100,000 100,000,000
Camelopard 98 300 100,000,000
Sinistral SIG 98 ? 10,000,000 ##
Intertel 99 1,700 50,000,000
Philosophical Enquiry 99.9 450 5,000,000
Triple Nine 99.9 420 5,000,000
One-In-A-Thousand 99.9 30 5,000,000
Prometheus 99.997 100 150,000
Mega Society 99.9999 17 5,000
# Based on a world population of 5 Billion People.
## Based on 10% of people being left handed.
[I don't have better stats on hand - Phil]
 
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