mensa.org

Website

mensa.org

Mensa International – WelcomeWelcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.

mensa.org

One of the first images collected of this website on 10 Jan 1998

youtube.com

MENSA IS 80 official videoThe latest video on its YouTube channel

UnclaimedChecked on 30 Oct 2026, 15:37

Own this business? See what is holding the score back.

Truth score

Truth score 80 out of 100, High truth signals. Customer satisfaction: not enough reviews to say

80/ 100

High truth signals

Business details

Category: Trade body or membership association
Years in business: 61 years
Founded: 1946
Sells: Subscription or membership
Sells to: The public
Kind of seller: Charity or non-profit
Licensed trade: No licence normally needed
Domain age: 31 years
Address: The Old Post Office Main Road, Stickney, Boston, PE22 8AY, England
Email address: enquiries@mensa.org
Phone number: +44 1400 272675
Contact page: mensa.org/contact-us/
Website: mensa.org
Social media

Customer reviews

No reviews foundWe looked on Trustpilot, SmartCustomer, G2, Capterra, Reviews.io and Feefo

Customer satisfactionNot enough reviews to sayFrom independent reviews, weighed by their number

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Summary

Is mensa.org legit and trustworthy? Truth score 80 out of 100, high truth signals: 8 of 10 public checks clear, 2 for information. Legitimacy confidence: high. Customer satisfaction: not enough reviews to say.

mensa.org is run by Mensa International Limited, an active UK company registered at Companies House 61 years ago, and was founded in 1946. Its website address was registered 31 years ago, and is locked against transfer to someone else. The postcode on its website matches its registered office. No malware or phishing warnings found for its website. We could not find a customer rating.

Important context: Truth Signal weighs public evidence about this business. A high score means strong evidence that the business is established and legitimate, not a promise that it is safe to buy from or that every purchase will go well. A low score means the evidence is thin or raises concerns, not that the business is unsafe or a scam.

Positives

An active UK company registered at Companies House, set up 61 years ago.
Its website address was registered 31 years ago.
The postcode on its website matches its registered office at Companies House.
No malware or phishing warnings found for its website.

Not found

Reviews information was not found from our checks.

What they offer

Welcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.

— Mensa International, in their own words

What makes them different: “In fact, the only relevant qualification for membership is scoring within the upper 2% of the general population on an approved intelligence test.” Its about page

Getting help

Mensa International offers support and help through their help page, which can be found in the sources below.

SourcesIts homepage Its about page Contact Us Today

Latest YouTube video

Correct as of 30 Oct 2026, 15:37

How to check if mensa.org is legit

To check if mensa.org is legit yourself, look at the same public records we did: the company register, who owns the web address and since when, customer reviews, visitor numbers, how long the site has existed, social profiles, malware lists, data breaches and email security. Each row below shows what that record says about mensa.org; open a row to see the facts and the source to check them yourself. Step by step: how to know if a shopping site is legit.

Who they are

Company detailsCompanies House names no person with significant control (the people who own or control the company)

An active UK company registered at Companies House, set up 61 years ago
Its registered office at Companies House is The Old Post Office Main Road, Stickney, Boston, PE22 8AY, England
Its latest accounts at Companies House run to 31 December 2025
It has filed at Companies House regularly for the last five years, with no gap longer than 15 months

Country

Where the company is based: UK
Why we believe that: it is registered at Companies House as MENSA INTERNATIONAL LIMITED, the site's structured data states its country, its legal pages give an address in England and Wales, its terms are governed by the laws of England and Wales, its phone number starts +44, its postcode is a UK postcode
Which countries the company serves: Worldwide
Why we believe that: its pages say it works in 100 or more countries

Registration

Companies House registration: Registered as MENSA INTERNATIONAL LIMITED
VAT number: Not found

Better Business Bureau

Better Business Bureau profile: Not found

Companies House register

Company found in official company register: Yes
Registered company name: MENSA INTERNATIONAL LIMITED
Company status: active
Company age: 61 years
Registered address: The Old Post Office Main Road, Stickney, Boston, PE22 8AY, England
Accounts overdue: No
Confirmation statement overdue: No
Insolvency history: No
Registered office in dispute: No
Filing history consistent: Yes
Registered to do: 94990 Activities of other membership organisations n.e.c.
Previous names: INTERMENSA LIMITED (7 May 1965 to 6 Feb 1985)
Company type: Private company limited by guarantee

Size and borrowing

Accounts filed: Small company accountsFiled by a small company, with less detail.
Secured loans (charges): 0No secured loans outstanding at Companies House.

From Wikipedia

Trade name: text: MIL, language: en
Founded: 1946

SourcesCompanies House Wikipedia

Domain registrationIts website address was registered 31 years ago

Its website address is locked against being transferred to someone else

Domain age: 31 years
Domain transfer lock enabled: Yes

Website detailsWe read 4 of its pages: contact, about, terms and privacy

Company contact email is available
Company contact phone number is available

HTTPS enabled: Yes
Contact phone number found: +44 1400 272675
Contact page found: Contact page
Sources agreeing on postcode: 2

What its pages say

Quoted word for word from mensa.org.

Ways to contact them: “• If you have ANY OTHER QUERY , you can either contact us via the form below or send us an e-mail and we’ll respond as soon as we can.” Contact page
In their own words: “The High IQ Society with around 170,000 members of all ages in 90+ countries worldwide. “Mensa” means “table” in Latin, and the organisation was so named because Mensa is a round-table society where ethnicity, colour, creed, national origin, age, politics, educational and social background are all completely irrelevant. In fact, the only relevant qualification for membership is scoring within the upper 2% of the general population on an approved intelligence test.” About page
Who you're buying from: “Company registration number: 00848100” Terms page

SourcesHomepage About page Contact page Privacy page Terms page

Reputation and track record

Customer reviewsWe found no page for it on any review website, such as Trustpilot

Platform	Rating	Reviews
Trustpilot	Not found
SmartCustomer	Not found
G2	Not found
Capterra	Not found
Reviews.io	Not found
Feefo	Not found
Trustindex	Not found
Google	Not checked

Visitor trafficIts visitor numbers jumped suddenly into the top 50,000 websites by March 2026: a burst of traffic rather than a steady history

Real people visited its website in 24 of the last 24 months
Real people have visited its website since February 2021 or earlier

Monthly visitor data

Popularity among Chrome users: top 500,000 sites
First known user traffic: Feb 2021 or earlier
Months with real traffic, of the last 24: 24
Traffic pattern: sustained
Rank jump in the last 12 months: top 500,000 to top 50,000 by 2026-03
Rank drop in the last 12 months: top 50,000 to top 500,000 by 2026-06

Web history and authorityFound: wikipedia page

Wikipedia page: yes

SourcesWikipedia

Social presenceIt is on 6 social media platforms (Facebook, Instagram, LinkedIn, TikTok, X and YouTube); the largest audience is 39,739 followers on Facebook

Its YouTube channel has 1,020 subscribers and 22 videos, the latest uploaded on 21 Oct 2026

Platform	Profile	Audience
Facebook	Profile	39,739 followers
Instagram	Profile	Unknown
X	Profile	Unknown
LinkedIn	Profile	Unknown
YouTube	Profile	1,020 subscribers
TikTok	Profile	Unknown

Social platforms with discovered profiles: facebook, instagram, linkedin, tiktok, x, youtube
Social follower counts: 40,759 followers in total
YouTube channel: 22 videos, 1,020 subscribers, last upload 21 Oct 2026

What data this site collects about you

What its privacy policy saysWe found this business stores and uses your data

May send your data to other countries.: “In the case that we need to transfer your personal data outside the UK, we will do so only after ensuring that the level of protection of your personal data guaranteed UK data protection law is not undermined.”
Says you can ask it to delete your data.: “You have the right to request the deletion of your personal data.”
Has a data protection officer you can contact.: “You can also reach out to our Data Protection Officer (DPO) at [email protected] .”dpo@mensa.org

SourceIts privacy policy

Tracking tools on its homepageGoogle Analytics

Named in its homepage's code when we read it. Others may load later, so this list may not be complete.

Google Analytics: Counts your visits and what you look at.

Uses CookieYes to ask which cookies you allow.

Safety

Malware and phishingNo malware or phishing warnings found for its websiteThis check is not perfect: it can miss a harmful site, and it can wrongly warn about a safe one.