Mensa is a not-for-profit society. Its purposes are to identify and foster human intelligence for the benefit of humanity, encourage research into the nature, characteristics and uses of intelligence, and to provide a stimulating intellectual and social environment for its members.Membership is available to anyone who has an IQ in the top 2%, demonstrated by sitting the Mensa supervised test or through an accepted standard IQ test.Mensa Australia is the branch of the society for residents or citizens of Australia