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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsWeinfeldenBischoff Kopp Dipl. Arch. ETH SIA GmbH
Bischoff Kopp Dipl. Arch. ETH SIA GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Bischoff Kopp Dipl. Arch. ETH SIA GmbH is an architecture firm providing design and project planning services for new construction, conversions and renovations. The firm participates in competitions and delivers projects including residential, public and ecclesiastical buildings.

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Offering

Products & services

Industry:Architecture Firms
✓ Offered2
Architectural services
Planning and project engineering of new builds, conversions and renovations for residential houses, multi-family buildings, office buildings and public buildings.
Architectural competition planning
Participation in architectural competitions and study mandates for school buildings, municipal buildings, religious buildings, residential buildings and other public projects.
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Bischoff Kopp Dipl. Arch. ETH SIA GmbH

Trust & reputation

ranQ Trust Score of Bischoff Kopp Dipl. Arch. ETH SIA GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Bischoff Kopp Dipl. Arch. ETH SIA GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Bischoff Kopp Dipl. Arch. ETH SIA 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%
Bischoff Kopp Dipl. Arch. ETH SIA GmbH scores 83.3 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).83.322%
Bischoff Kopp Dipl. Arch. ETH SIA GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

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Location

Bienenstrasse 20
8570 Weinfelden

At a glance

Legal form
Limited Liability Company
UID
CHE-112.943.297
Founded
2006 · 20 years
Last commercial register change
April 16, 2025
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.88.06%
  • 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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