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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeFribourgGruner AG
Gruner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gruner AG is an independent engineering consultancy providing comprehensive planning and engineering services in building construction, infrastructure and energy. Its expertise includes structural and geotechnical engineering, building services and construction management, water and energy systems, transport infrastructure, and environmental and spatial planning.

AI-generated
Offering

Products & services

Industry:Owner's Representative
✓ Offered6
Fire protection and building physics
Fire protection, fire protection planning, evacuation simulation, fire and smoke simulation, building physics, building acoustics, fire-control systems.
General planning
General execution planning, support for clients, construction management, sustainable planning and construction, cost planning, 3D digitisation of buildings and structures.
Building services and building climate engineering
Heating, ventilation, air conditioning and refrigeration, building and room automation, electrical engineering, geothermal energy, integrated planning, laboratories, clean rooms and institutes.
Geotechnics and civil engineering
Foundation design, backfilling of excavations, slope stability, soil improvement, assessment of geotechnical risks, project management and construction supervision.
Structures
Design of load-bearing structures, maintenance of structures, seismic safety, timber construction, site safety and deconstruction.
Security
Infrastructure security, public safety, security consulting, corporate security, event security.
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4.1/5

Gruner AG

Trust & reputation

ranQ Trust Score of Gruner 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.

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 65.7 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.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.82.07%
Gruner 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%
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 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.

Knowledge

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Location

Rue Saint-Pierre 3
1700 Fribourg

At a glance

Legal form
Branch
UID
CHE-457.726.384
Founded
2023 · 3 years
Last commercial register change
September 8, 2026
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.
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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