The only criterion for membership is a score at or above the 99th percentile level on a qualifying and valid supervised test of intelligence. For questions about membership contact the Office.

  • ACT (until 1989) 99th percentile
  • Army General Classification Test (AGCT or GT) 145
  • Armed Forces Qualification Test (AFQT) 99th percentile
  • California Test of Mental Maturity IQ 137
  • Cattell B IQ 156
  • Cattell (Culture Fair) IQ 140
  • Cattell Culture Free (Test 2B) 39
  • Cattell Culture Free (Test 3A) 35
  • Cattell (Verbal) IQ 156
  • Cognitive Abilities Test (CogAT) 99th percentile
  • Concept Mastery Test 135
  • DAT2 Cognitive Battery 135
  • Figure Reasoning Test 99th percentile
  • GRE (after 12/2011) 99th percentile verbal or quantitative
  • GRE (10/2002 through 11/2011) 740 (verbal only)
  • GRE (5/1994 through 09/2002) 1950 (combined verbal,
  •      math, & analytical)
  • GRE (prior to 5/94) 1300 (combined verbal and math)
  • Henmon-Nelson 135
  • IST-2000R 99th percentile
  • Kaufman (KAIT or K-ABC II-NU) 135
  • Law School Admission Test (1994-present) 172
  • Law School Admission Test (1984-1993) 41 or 99th percentile
  • Law School Admission Test (pre 1983) 694
  • Lorge-Thorndike 142 or 99th percentile

  • Mensa Admission Test  raw score 97 or 99th percentile *
  • Miller Analogies Test 99th percentile
  • Naglieri Non-Verbal Assessment Test (NNAT) 99th percentile
  • Navy Classification Test (1954-present) 68
  • Navy Classification Test (1948-1953) 74
  • Navy Classification Test (1942-1943) 88
  • Otis-Alpha 143
  • Otis-Lennon Mental Ability Test 138
  • Otis-Lennon School Ability Index 138
  • PSAT (through 5/31/1993) 99th percentile
  • Reynolds (RAIT Total Intelligence Index or
  •      Total Battery Intelligence Index; RIAS or
  •      RIAS-2) 99th percentile
  • Scholastic Aptitude Test (through 1/31/1994) 1300
  •      (combined verbal and math)
  • Schubert General Ability Battery 145
  • Slosson Intelligence Test  Revised 138
  • SON-R IQ 135  (We do not accept the 2.5-7a)
  • Stanford-Binet (Form L-M) IQ 137
  • Stanford-Binet (SB5) IQ 135
  • Test of Nonverbal Intelligence (TONI-3) IQ 135
  • Wechsler Intelligence Scale (WISC, WAIS, WPPSI) IQ 135
  • Woodcock-Johnson III Tests of Cognitive Abilities 135
  • NOTE: No self-administered tests will be accepted.

*While American Mensa has suspended sending scores to members, they have a release form that members can fill out and return to them, and the scores will be released directly to the Intertel office.  That form can be obtained from the  American Mensa website https://www.us.mensa.org/my-mensa/test-score-release/ or the Intertel office.  Raw test scores can be correlated to percentile by the Intertel office.  Mensans who incur a fee to obtain their test scores will receive a discount on their first year's dues if they use those scores to join Intertel.

NOTE: European versions of tests that Intertel accepts can have different scores/percentiles than the American versions. The scores listed on our website only apply to the American versions. The percentile is the important criterion. Intertel will accept Mensa percentile reports as qualifying evidence.

LAPSED MEMBERS need not reapply. Contact the Office for reinstatement.  Please include your current address in your email.

NEW APPLICANTS: The $10 Application fee is for processing only. "Subscription period: Unlimited" below means you may apply at any time. If your application is accepted (following submission of your evidence of eligibility), you will be billed for annual dues prorated from your date of acceptance until January 1. "Renewal period: Never" which will show later in the process means that your application will expire only if you fail to send in your evidence or pay dues within a reasonable time.

You may submit a legible photocopy of your evidence of qualifying eligibility to:
Intertel, Inc.
PO BOX 2404
South Portland, ME  04116
or an electronic copy following the instructions in the application acknowledgment email you receive.

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