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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryPublic Administration & EducationSchoolSt. GallenInstitut auf dem Rosenberg AG
Institut auf dem Rosenberg AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Institut auf dem Rosenberg AG is an international private boarding school offering an academic curriculum that prepares students for a range of international qualifications and examinations. Its programmes include individual development planning and additional courses in areas such as robotics, design and sports.

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4.3/5

Institut auf dem Rosenberg AG

Boarding school
Private boarding school for children and adolescents from around 6 to 18; holistic learning environment, small classes, individual support, and instruction based on international curricula.
Academic curriculum
Rosenberg International Curriculum from Pre-School to High School; preparation for IGCSE, A-Levels, AP, IB and GIB, with modern languages and flexible learning pathways.
Talent & Enrichment
More than 100 courses and activities, including co-curricular offerings, sports, research, trips, and partnerships with companies and experts.
Individual Development Planning (IDP®)
Individual education and career planning with mentors, advisors, and regular feedback; involvement of parents, along with support for progress and goals.
Boarding care and student residences
Boarding care with residences, pastoral care, support on campus and in students’ lifestyles, as well as structured day-to-day and leisure supervision.
Application and admissions process
Online application for new students with document review, interview, entrance examination, and an in-person school visit.
Real-World Projects / Ventures
Hands-on projects, founder and innovation formats with mentors, alumni, Future Park, AI Charter, and other student initiatives.
Trust & reputation

ranQ Trust Score of Institut auf dem Rosenberg AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 92% · As of November 2026

Institut auf dem Rosenberg AG scores 68.8 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.55.824%
  • 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.100.010%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Institut auf dem Rosenberg AG scores 92.3 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.82.07%
Institut auf dem Rosenberg AG scores 88.3 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).88.322%
Institut auf dem Rosenberg 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

Institut auf dem Rosenberg AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.1 out of 5 stars from 110 customer reviews. The data basis is 92%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.1
of 5

Aggregated from 110 reviews across all connected sources

Sources
GGoogle4.1110
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 2, 2024Media
Institut auf dem Rosenberg: Wie die beste Schule der Welt wirklich tickt (B+)
blick.ch
November 18, 2024Media
Alumni-Versammlung auf der teuersten Schule der Welt in SG
blick.ch
July 29, 2024Media
Das «Institut auf dem Rosenberg» ist die teuerste Schule der Welt | Stadt St.Gallen
stgallen24.ch

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Location

Höhenweg 60
9000 St. Gallen
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-107.901.382
Founded
1944 · 82 years
Last commercial register change
March 3, 2026
Employees
21 to 50

Active in 1 of 26 cantons · 1 municipality

  • SGSt. Gallen
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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