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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsKreuzlingenGROSJEAN ARCHITEKTEN AG
GROSJEAN ARCHITEKTEN AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Grosjean Architekten AG is the provision of architectural services, in particular the planning and design of buildings and construction projects.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered3
Architecture
Planning, design and realisation of architectural projects for high demands down to the detail; clear, elegant ideas for spaces and buildings.
Construction Services
Construction services for owner consulting and comprehensive support of individual projects; responsible building solutions for the environment based on more than 25 years of experience.
Competitions and Studies
Competitions and studies for school buildings, sports halls, site development, conversions and other building projects; conceptual processing of designs and variants.
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4.1/5

GROSJEAN ARCHITEKTEN AG

Trust & reputation

ranQ Trust Score of GROSJEAN ARCHITEKTEN AG: 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.

GROSJEAN ARCHITEKTEN AG 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%
GROSJEAN 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%
GROSJEAN ARCHITEKTEN AG 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%
GROSJEAN ARCHITEKTEN AG scores 7.4 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 35.7.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GROSJEAN ARCHITEKTEN AG 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

Sandbreitestrasse 12
8280 Kreuzlingen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.336.881
Founded
1997 · 29 years
Last commercial register change
March 16, 2016
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.
100.0
6%
  • 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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