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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesFire protectionGenevaGruner AG
Gruner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gruner AG is an engineering and design company working in building construction, industry, infrastructure and energy. It provides services to public and private clients across the life cycle of buildings and infrastructure, from strategic planning and design to commissioning, operation, refurbishment and demolition.

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Service area

Offering

Products & services

Industry:Fire protectionBuilding services engineer
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Gruner AG

Civil engineer
✓ Offered8
Fire protection
Fire protection for buildings and infrastructure, including design and project support within engineering and consulting services.
Building technology
Building technology for public and private clients, with engineering and consulting services related to building projects.
Geotechnics
Geotechnics for construction projects, with engineering and consulting services in the fields of buildings, infrastructure and energy.
General planning
General planning of projects, with coordination and engineering and consulting services for public and private clients.
Construction
Construction related to building and infrastructure projects, integrated into engineering and consulting services.
Safety
Safety for building, infrastructure and energy projects, with engineering and consulting services.
Infrastructure
Infrastructure for public and private projects, with engineering and consulting in building, infrastructure and energy.
Railway construction
Railway construction within engineering and consulting services for infrastructure projects.
Trust & reputation

ranQ Trust Score of Gruner AG: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 54% · As of November 2026

Gruner 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%
Gruner AG scores 37.5 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.0.012%
  • 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%
Gruner AG scores 85.0 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).85.022%
Gruner AG scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gruner AG reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». 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 November 2026.

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

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Comparisons

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Location

Boulevard James-FAZY 8
1201 Geneva

At a glance

Legal form
Branch
UID
CHE-130.869.730
Founded
2026 · 0 years
Last commercial register change
June 29, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • GEGeneva
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.
76.0
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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