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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsEstévenensGuillet Architecture SA
Guillet Architecture SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Guillet Architecture SA is the provision of architectural services, including: consulting and planning of construction projects, creation of designs, projects and execution plans, conducting feasibility studies and cost calculations, construction management and supervision of construction projects, transformation, extension and renovation of buildings. The company offers these services for various types of construction projects, including residential buildings, schools, sports centers, industrial halls and others.

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Products & services

Industry:Architecture Firms
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4.1/5

Guillet Architecture SA

Architectural office
Architectural and technical advice, submissions for public inquiry, architectural direction, preliminary studies and building projects, execution projects, feasibility studies, surveys and documentation.
Construction management
Construction management for construction, conversion, renovation and extension projects, with supervision of the implementation until the finished property.
Transformations and renovations
Transformations, renovations and extensions of existing buildings, including houses, farmhouses, villas and apartment buildings.
Feasibility studies
Feasibility studies for property and building projects, upstream of the preliminary design and the execution design.
Public inquiry submissions
Preparation and submission of public inquiry dossiers for construction, conversion or renovation projects.
Housing projects
Design and monitoring of projects for apartment buildings, grouped housing, detached houses, villas and chalets.
School and sports projects
Design of sports and school centres, school buildings, gymnasiums and after-school facilities.
Industrial and commercial projects
Design of industrial halls, multi-use buildings, retail premises and mixed-use properties with commercial areas.
Trust & reputation

ranQ Trust Score of Guillet Architecture SA: 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.

Guillet Architecture SA 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%
Guillet Architecture SA scores 85.0 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.83.012%
  • 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.82.07%
Guillet Architecture SA 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%
Guillet Architecture SA scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Guillet Architecture SA 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 de la Magne 5
1687 Estévenens

At a glance

Legal form
Corporation
UID
CHE-222.705.015
Founded
2017 · 9 years
Last commercial register change
September 27, 2017
Employees
21 to 50
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%
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