ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeDegersheimGruner AG
Gruner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Gruner AG provides engineering and planning services in building construction, infrastructure and energy. Its multidisciplinary services cover all project phases and include structural engineering, geotechnics, building services, energy and water management, transport and civil engineering, as well as environment and safety engineering.

AI-generated
Offering

Products & services

Industry:Owner's Representative
✓ 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.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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 October 2026

Gruner AG scores 65.5 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.95.08%
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 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 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 October 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

No knowledge articles yet

Once Gruner AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Gruner AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Gruner AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Gruner AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

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
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

    Similar companies

    KA
    Konzett AG
    Buchs Sg
    HB
    Hug Baumanagement GmbH
    Widnau
    JL
    Johann Loher AG, Montlingen
    Montlingen
    AB
    Agosti Bauen Baulösungen GmbH
    Uznach
    WB
    Wälchli Baumanagement GmbH
    Eschenbach Sg
    CG
    Carnier Gstöhl GmbH
    Widnau
    RI
    RF ImmoPartner AG
    Goldach
    RG
    renoba GmbH
    Au Sg