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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsCollonge-Bellerivegb architecte - REG, Grégoire Bellwald
gb architecte - REG, Grégoire Bellwald Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activity is architecture.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered6
Residential and building architecture
Creation of housing, villas, chalets and rental apartment buildings; projects for administrative and industrial buildings, with design tailored to site constraints and technical requirements.
Transformation, rehabilitation and renovation
Transformation, rehabilitation and renovation of individual or collective housing; renovation of apartments, houses, villas, village buildings and existing buildings.
Energy retrofitting and energy renovation
Energy retrofitting of buildings, retrofitting studies, thermal renovation and measures to improve energy performance for existing buildings.
Design and construction of Minergie buildings
Design and construction of Minergie buildings, including Minergie-P and Minergie-A, taking into account energy and comfort standards.
CECB energy audit
CECB energy audit of buildings, with assessment of heat needs and support for the energy analysis of the constructions.
Environmental and energy feasibility studies
Feasibility studies of the environmental and energy aspects of housing, taking into account the site’s technical and environmental constraints.
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4.1/5

gb architecte - REG, Grégoire Bellwald

Trust & reputation

ranQ Trust Score of gb architecte - REG, Grégoire Bellwald: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

gb architecte - REG, Grégoire Bellwald 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.
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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%
gb architecte - REG, Grégoire Bellwald scores 78.5 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%
gb architecte - REG, Grégoire Bellwald 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%
gb architecte - REG, Grégoire Bellwald scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

gb architecte - REG, Grégoire Bellwald reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Route d'Hermance 199 A
1245 Collonge-Bellerive

At a glance

Legal form
Sole proprietorship
UID
CHE-108.691.715
Founded
1997 · 29 years
Last commercial register change
December 20, 2023
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.67.06%
  • 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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