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

About the company

The core activity of gmür tammaro architekten is the provision of architectural services.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered5
Architectural services
Architectural planning, project management and execution for conversions, new builds and competitions; including residential, school, commercial and cultural buildings as well as studies and open-space topics.
Competition and study projects
Competitions, competition entries and studies for extensions, residential developments, school buildings and other construction projects.
Conversions and refurbishment
Conversions, change of use and refurbishments of existing buildings, including the boiler house, lecture hall building, residential houses and a transformer wall.
New construction of residential, commercial and education buildings
New-build projects for residential developments, residential and commercial buildings, school facilities and research buildings.
Project management for architectural projects
Project management for complex building projects, from preparation through planning to delivery.
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3.8/5

Gmür Tammaro GmbH

Trust & reputation

ranQ Trust Score of Gmür Tammaro GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of October 2026

Gmür Tammaro 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%
Gmür Tammaro GmbH scores 61.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.50.012%
  • 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%
Gmür Tammaro GmbH 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%
Gmür Tammaro GmbH scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gmür Tammaro GmbH reaches a ranQ Trust Score of 3.8 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

Birmensdorferstrasse 360
8055 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-233.472.708
Founded
2023 · 3 years
Last commercial register change
January 23, 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.
88.0
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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