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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryPublic Administration & EducationVocational & Secondary SchoolsSionThe International School of Sion SA
The International School of Sion SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activity is the operation of an international school, offering education and training to students aged 14 to 18, including academic programs, activities, summer camps, and boarding places.

AI-generated
Offering

Products & services

Industry:Vocational & Secondary Schools
✓ Offered6
International Secondary Education
Education for students aged 14 to 18, with an academic pathway of three or four years, subjects chosen by groups, and preparation for higher education.
Cambridge Programme
Cambridge International School programme with preparation for the Cambridge International General Certificate in Secondary Education and teaching according to the Cambridge framework.
Boarding School
Boarding on campus for students from age 14, with several options, daily supervision, a secure environment and personalised support.
Summer and Winter Camps
Summer and winter camps open to students of all nationalities, with language classes, winter sports, mountain activities and cultural outings.
Extracurricular Activities
Creative, sports and club activities, outings, cultural events, hikes, thermal baths, amusement parks and visits organised by the school.
Admissions and Enrollment Process
Submission of the file, entrance test and interview, letter of acceptance, payment of fees, then enrolment confirmation.
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4.0/5

The International School of Sion SA

Trust & reputation

ranQ Trust Score of The International School of Sion SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

The International School of Sion SA 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.
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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%
The International School of Sion SA scores 71.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.58.012%
  • 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.70.07%
The International School of Sion SA scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).83.322%
The International School of Sion SA scores 10.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.10.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

The International School of Sion SA reaches a ranQ Trust Score of 4.0 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 54%, 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.

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Location

Avenue de la Gare 17a
1950 Sion

At a glance

Legal form
Corporation
UID
CHE-149.929.280
Founded
2022 · 4 years
Last commercial register change
September 13, 2022
Employees
11 to 20
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.100.06%
  • 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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