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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectBütschwilPeter Keller Architektur GmbH
Peter Keller Architektur GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Peter Keller Architektur GmbH is an architecture practice that develops ideas into architectural concepts and guides clients through planning and construction. Its projects include residential buildings as well as commercial and public buildings.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Architect
✓ Offered4
Architecture and planning services
Architecture concepts, planning and support throughout the design and construction process; development of contemporary solutions for residential and commercial projects as well as new-build and conversion schemes.
New residential building projects
New builds of owner-occupied flats, rental flats, single-family houses, semi-detached houses and terraced houses; also larger housing developments and age-appropriate residential projects.
Commercial and industrial buildings
New construction and extensions for commercial buildings, retail premises and production buildings; projects with mixed use and associated underground parking.
Conversion and refurbishment projects
Conversions of apartments and existing buildings; architectural adaptations and renewal of properties in the residential sector.
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4.0/5

Peter Keller Architektur GmbH

Trust & reputation

ranQ Trust Score of Peter Keller Architektur GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Peter Keller Architektur GmbH scores 62.1 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.75.024%
  • 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.40.910%
  • 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.50.08%
Peter Keller Architektur GmbH scores 83.0 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%
Peter Keller Architektur GmbH 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%
Peter Keller Architektur GmbH scores 40.0 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 35.40.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Peter Keller Architektur GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Küfersberg 17
9606 Bütschwil

At a glance

Legal form
Limited Liability Company
UID
CHE-330.742.527
Founded
2011 · 15 years
Last commercial register change
June 24, 2013
Employees
1 to 10
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.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Active in 1 of 26 cantons · 1 municipality

    • SGBütschwil-Ganterschwil

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