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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectSt. GallenGemperli Architektur AG
Gemperli Architektur AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Gemperli Architektur AG is the provision of architectural services.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Architect
✓ Offered6
Architectural planning
Architectural planning for new builds, conversions and renovations; projects for residential, office and hotel sectors as well as competition and study projects.
Renovation and conversion
Conversion and renovation of residential properties, office spaces and hotel rooms; design and structural adaptations in existing buildings.
New-build projects
New-build construction of residential buildings, pavilions and other structures; handling new-build projects at different scales.
Competition planning
Competitions for construction projects such as residential developments, a seaside swimming facility and a students’ house; development of entries for architecture competitions.
Studies and concept development
Study mandates, studies and operational and design concepts for areas, districts and buildings; conceptual preliminary assessments and drafts.
Site development
Site development for land parcels and developments; development of ideas for use, zoning and design for larger construction projects.
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4.1/5

Gemperli Architektur AG

Trust & reputation

ranQ Trust Score of Gemperli Architektur AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Gemperli Architektur AG scores 63.5 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.73.124%
  • 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.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Gemperli Architektur AG scores 85.5 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.55.07%
Gemperli Architektur AG scores 86.7 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).86.722%
Gemperli Architektur AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gemperli Architektur AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, 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
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Dürrenmattstrasse 36
9000 St. Gallen

At a glance

Legal form
Corporation
UID
CHE-106.036.764
Founded
1989 · 37 years
Last commercial register change
December 7, 2021
Employees
1 to 10

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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