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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryPublic Administration & EducationSchoolsColognyInstitut International Notre-Dame du Lac
Institut International Notre-Dame du Lac Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company "Institut Notre Dame du Lac" is a private school offering educational services to students. The core activity of the company consists of providing educational services, including teaching, care and education of students.

AI-generated
Offering

Products & services

Industry:Schools
✓ Offered2
NDL Alumni Network
Membership of the alumni network of the Institut International Notre-Dame du Lac, with private events, networking, partnerships and member-only benefits.
Alumni Online Space
Online platform for Alumni members with news, events, groups and clubs, a career section, professional opportunities and exclusive partnerships.
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4.2/5

Institut International Notre-Dame du Lac

Trust & reputation

ranQ Trust Score of Institut International Notre-Dame du Lac: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 92% · As of October 2026

Institut International Notre-Dame du Lac scores 70.0 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.65.024%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.81.910%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Institut International Notre-Dame du Lac scores 86.5 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.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.82.07%
Institut International Notre-Dame du Lac scores 86.7 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).86.722%
Institut International Notre-Dame du Lac scores 56.0 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 35.68.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.43.34%
Qualifications+0.00

Institut International Notre-Dame du Lac reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 24 customer reviews. The data basis is 92%, 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.

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle4.324
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

February 11, 2026Media
Une course-poursuite se termine dans une école privée à Cologny
tdg.ch
October 18, 2022Media
Opération immobilière à Cologny: Une école privée voit son bail résilié par un promoteur
tdg.ch
January 26, 2017Media
Les métiers qui font rêver les enfants
letemps.ch

Knowledge

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Location

Chemin Notre-Dame-du-Lac 5
1223 Cologny
Opening hours
Mon
08:00 - 16:45
Tue
08:00 - 16:45
Wed
08:00 - 16:45
Thu
08:00 - 16:45
Fri
08:00 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Association
UID
CHE-107.856.511
Founded
2008 · 18 years
Last commercial register change
December 19, 2025
Employees
21 to 50
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.73.06%
  • 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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