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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil engineerDegersheimGruner AG
Gruner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Gruner AG is an engineering and planning company working in building construction, infrastructure and energy. It advises private and public clients and provides planning services for buildings and infrastructure, from strategic planning through commissioning and management.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Civil engineer
✓ Offered8
Municipal engineering
Planning, consulting and support for municipal infrastructure, including municipal civil engineering and development matters, as well as specialist support for public construction projects.
Municipal consulting / expert assessments
Specialist consulting, expert assessments and review mandates for municipal infrastructure and civil engineering matters, including condition assessments, variant studies and traffic-related investigations.
Urban water engineering
Planning and support for systems of urban water supply and wastewater disposal, as well as drainage solutions and water-related infrastructure in the settlement area.
Special deep construction
Planning and support for special deep construction projects with a geotechnical focus, where soil conditions, cost-effectiveness and safety are paramount.
Geotechnics
Geotechnical investigations and solutions for ground conditions, risks and opportunities in civil engineering, including technical support for demanding projects.
Urban and municipal civil engineering
Planning and support for civil engineering projects in the public realm, including utility development, pipelines, roads and other municipal infrastructure.
Road construction
Planning, project development and support for road projects, from preliminary studies and tendering through to implementation and operation.
Hydraulic engineering
Planning and support for hydraulic engineering projects, including flood protection, river and watercourse development, revitalisation and hydraulic assessments.
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4.2/5

Gruner AG

Trust & reputation

ranQ Trust Score of Gruner AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

Gruner AG scores 64.2 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.60.924%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.88.08%
Gruner AG scores 87.1 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.82.07%
Gruner AG scores 86.7 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).86.722%
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 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.1 out of 5 stars from 7 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.1
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.17
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

Taastrasse 1
9113 Degersheim
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-150.328.756
Founded
2008 · 18 years
Last commercial register change
January 4, 2023
Employees
21 to 50

Active in 1 of 26 cantons · 1 municipality

  • SGDegersheim
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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