Wikipedia
Intertel
Intertel is a high IQ society that is open to those who have scored at or above the 99th percentile (top 1%) on one of various standardized tests of intelligence. Intertel was founded in the United Kingdom, in 1966, by Ralph Haines. It is divided into eight regions, has elected officers, and is said to have over 1,200 members from over 30 nations. Intertel has experienced leadership under Kort Patterson and has a journal called Integra. Additionally, Intertel has a hall of fame for some of its members.