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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesZurichEF Colleges AG
EF Colleges AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

EF Colleges AG provides language courses, cultural-exchange and study-abroad programmes as well as secondary and higher-education offerings. Services include on-campus and online language learning, academic preparation, high-school exchange and corporate training.

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Offering

Products & services

Industry:Holding Companies
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4.1/5

EF Colleges AG

✓ Offered1
Language training for organizations
Language training for companies and public institutions, online from anywhere in the world, with courses and learning solutions for organizations.
Trust & reputation

ranQ Trust Score of EF Colleges AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

EF Colleges AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
EF Colleges AG scores 94.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.90.07%
EF Colleges AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
EF Colleges AG scores 65.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.30.04%
Qualifications+0.00

EF Colleges AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Press

Media

June 30, 2026Media
EF reagiert mit neuer Sprachschule auf Malta auf steigende Nachfrage
punkt4.info
October 19, 2020Media
EF Schweiz verschenkt 21 Sprachaufenthalte fürs 2021
tagblatt.ch
June 25, 2019Media
Das etwas andere Klassenfoto
zentralplus.ch
June 12, 2018Media
Frust im Sprachaufenthalt - Noch mehr Klagen über die fiese Masche der Sprachschule EF
srf.ch

Knowledge

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Location

Selnaustrasse 30
8001 Zurich

At a glance

Legal form
Corporation
UID
CHE-103.904.097
Founded
1977 · 49 years
Last commercial register change
October 2, 2026
Employees
51 to 100
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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