Get to know IHIQS

What is IHIQS?

IHIQS was started by Nathan Haselbauer as the New York High IQ Society in 2000, with the aim of promoting discussions on a variety of intellectual topics. The organization became IHIQS later that year to reflect its growing international membership and is open to individuals who have demonstrated an IQ in the top five percent of the population.

We have thousands of members from all across the globe and are legally established in The Netherlands. Current president is Dr. Edwin van Thiel and daily contacts and community management are handled by Dr. Alice Karen Burridge. Both live in the greater Amsterdam area.

What does IHIQS offer?

When you join IHIQS, you get a membership certificate and you can become a part of our online community to participate in forum discussions, learn from top experts, connect with intelligent people and advance yourself.

We have a private online forum at our website and are available on Facebook as well as LinkedIn and Instagram. We currently have no offline events, but other members may well live close by. As long as you "kick the ball and not the player", you will find yourself in an open-minded environment where you are allowed to kick the ball quite hard.


Who are our members?

Our members are adult men and women from all walks of life and have very different backgrounds and personalities. Roughly 30% of our members are from Europe, 30% from North America, 15% Asia, 10% South America, 10% Australia and 5% from Africa. Some are off the chart.

We are proud to have many different cultures under one roof!

Joining IHIQS?

Why should I join?

We represent a contemporary movement and stimulate discussions on a variety of intellectual topics. We offer a platform to present ideas, discuss them in a friendly environment, share professional knowledge and enjoy learning! If you like that, or just want to be a registered member, you should join.

Once you become a member, you can download an official Membership Certificate from your profile and show membership on your LinkedIn profile page. We are looking forward to meeting you soon!

What are the requirements?

You can join us if you are at least 15 years old and have an IQ score in the top five percent on any of our accepted tests, preferably our official admissions IQ test. Scores are not always distributed in the same way following different tests, but for a standard deviation of 15, this should be at least a 124 IQ. English is the primary language within IHIQS.

How do I take the admissions test?

Prospective members can take our certified online admissions Culture Fair Intelligence Test (USD 8.99 / EURO 9,50) hosted at sites of 123test. You can take the free short demo IQ test first if you like (auch auf Deutsch: IQ-test).

After taking the admissions test you can download an IQ certificate which you can upload during your membership request as proof of a sufficiently high IQ score.

We do not accept any unproctored online test that is not officially recognized or certified by IHIQS. This includes the short (8 questions) demo version of the admissions test.

What are the other qualifying tests?

Other qualifying tests require a score in the top five percent. These tests have to be administered by a certified professional such as a psychologist or by a recognized educational institution. Online (sample) versions of these or any other tests are not accepted.

  • Wechsler Adult Intelligence Scales
  • Wechsler Intelligence Scale for Children
  • Woodcock-Johnson Tests of Cognitive Abilities
  • Stanford-Binet Intelligence Scales
  • Raven’s Progressive Matrices
  • Miller Analogies Test
  • Cattell Culture Fair Test
  • College admission tests: SAT, ACT, GMAT

We also accept copies of your Mensa membership card or a Mensa acceptance or rejection letter stating an IQ in the top five percent.

How is my privacy guaranteed?

Our online community can only be accessed and seen by full members. All communications with us and among members in our online community are confidential. We do not use nicknames or avatars in our forum.

You can also read the concise IHIQS privacy policy online.

Pricing and signup process

Request a membership first by signing up. Make sure you have read the requirements carefully. After verification, you proceed to buy a membership plan of your choice. We currently have two membership plans, lifetime or five year, that do not differ in terms of permissions and privileges within IHIQS.

Let's Get In Touch

How can I reach you for questions?

Please use the contact form below to get in touch. It may take a couple of days for us to respond.


© 2019 IHIQS - the International High IQ Society