About GIGA Society

As an experimental project of GIGA Foundation, GIGA Society is an extremely high-IQ society for those who score at or above IQ 190 (SD 15) on an acceptable high-range IQ test.

GIGA Society of GIGA Foundation is distinct from other giga-level societies in that it accepts scores from a variety of high-range IQ tests which have been developed by test authors from around the world. There are other giga-level societies which accept mainly tests authored by their society’s own founder. This is an extremely biased policy. To combat this questionable practice, GIGA Society of GIGA Foundation accepts the world’s best high-range tests for admission consideration.

GIGA Society was established by GIGA Foundation, a global organization for the high IQ network where the aim of GIGA Foundation is to integrate high IQ people & societies, to certify high IQ scores, and to publish GIGA Records the world’s highest IQ list certified by GIGA Foundation.  

GIGA Society has a total of ten members worldwide, including individuals from Asia, Europe, and America. Their diverse professional backgrounds include MIT graduates and university professors. GIGA Society welcomes geniuses from all over the world.

About High Range IQ Test

High-range IQ tests were developed experimentally to measure IQ in the very high range. The more common official IQ tests, such as the Wechsler and Stanford-Binet, are limited in that they measure adult IQ only to approximately IQ 160 (SD 15). Theoretically, however, human intelligence can be calculated statistically up to roughly IQ 195 (SD 15) and high range IQ tests have been developed as a result of this statistical reason. 

The method of standardization for these high-range IQ tests can be said to have a strong experimental tendency, because obtaining sufficient data is difficult due to the rarity of the measurement range. Scores based on the preliminary norm are also subject to similar skepticism. Even so, it is difficult to deny the reliability and validity of high-range IQ tests, given that the people who perform well on them also perform well on the official IQ tests.

Based on these high-range IQ tests, GIGA Society recognizes extremely high intelligence of IQ 190 (SD 15). One of GIGA Society’s missions is to find additional excellent high-range IQ tests. This mission is currently overseen by a council of two members.


  1. Untimed high-range IQ test score ≥ IQ 190 (SD 15) on 1st or 2nd attempt.
  2. Once a test is used to admit a member to GIGA Society, it may not be used again for the admission of any other members.
  3. Tests are adopted through review by external advisors and internal administrators.

Membership Types

  1. All GIGA Society members have full membership.
  2. Membership is free of charge

Membership Benefits

  1. The function of GIGA Society is to certify the “giga” intelligence level of each member. Therefore, all GIGA Society members receive an official certificate from the society, documenting their IQ ≥ 190 (SD 15).
  2. Members communicate via private forums, through which they can interact with each other and collaborate on confidential projects.

NOTE: The word “gigabyte” means one billion bytes; thus, the term “giga” represents one billion (and because “giga” is a generic noun, it cannot be trademarked). GIGA Society, therefore, is a group of people whose members have an IQ of one in one billion.