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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBüsserachDreier Korntheuer Architekten AG
Dreier Korntheuer Architekten AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company provides architectural and planning services, particularly in the areas of new buildings, conversions, renovations, interior design and outdoor spaces. They advise clients on the planning and implementation of construction projects, including coordination with specialist planners, authorities and contractors.

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Offering

Products & services

Industry:Architecture Firms
✓ Offered7
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3.8/5

Dreier Korntheuer Architekten AG

Planning and construction management
Planning and construction management for renovation and new-build projects, with ongoing cost and schedule control, coordination with specialist planners, authorities and contractors.
New-build residential buildings
New-build single-family and multi-family houses, mainly for private clients; referenced across various housing projects.
New-build commercial and service buildings
New-build commercial and service buildings for private and public clients, supplemented by project-based references in the commercial sector.
Renovation of residential buildings
Renovation of single-family and multi-family houses, including extensions, interior strip-outs, attic conversions/raised floors, renovations and interior design.
Renovation of commercial and public buildings
Renovation of commercial facilities and public buildings, with planning and execution for different clients.
Outdoor areas and small buildings
Planning and execution of outdoor areas and small buildings as part of new-build and renovation projects.
Advisory services for property purchase
Advisory services for the purchase of plots and properties, especially regarding buildability and renovation requirements.
Trust & reputation

ranQ Trust Score of Dreier Korntheuer Architekten AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Dreier Korntheuer Architekten AG scores 51.4 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.66.724%
  • 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.27.910%
  • 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.35.08%
Dreier Korntheuer Architekten 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%
Dreier Korntheuer Architekten AG scores 85.0 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).85.022%
Dreier Korntheuer Architekten AG scores 1.7 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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dreier Korntheuer Architekten AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 2 customer reviews. The data basis is 96%, 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
4.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle4.52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Wydenmattstrasse 2
4227 Büsserach
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.589.646
Founded
2008 · 18 years
Last commercial register change
May 8, 2020
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.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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