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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil engineerMartignyGruner Stucky SA
Gruner Stucky SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gruner Stucky SA is an engineering company focused on infrastructure and energy projects. Its services include tunnels and underground works, geotechnics, railway construction, bridge design, spatial planning, traffic and mobility, hydraulic engineering, and heating and cooling networks.

AI-generated
Offering

Products & services

Industry:Civil engineer
✓ Offered7
Infrastructure construction
Planning and implementation of infrastructure projects, in particular railways, bridges, roads, underground structures, hydraulic engineering and mobility/transport.
Energy generation and distribution
Design and implementation of energy projects, in particular hydropower and dams, transport of electrical energy, solar plants, wind power, geothermal energy and hybrid solutions.
Water management
Development of watercourses, protection against flooding, natural hazards related to water, urban hydraulics and drainage, hydraulics and lakefront developments.
General planning
General execution planning, assistance to the client, construction management, cost planning, sustainable development and 3D digitisation of buildings and structures.
Geotechnics, civil engineering and special works
Design of foundations, excavation support/sealing, slope stability, ground improvement, geotechnical risk management and construction supervision.
Structures
Design of load-bearing structures for buildings and bridges, maintenance of structures, seismic safety and deconstruction.
Spatial development
Development of territory, site developments, special planning, urban development and planning of mobility and transport.
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4.1/5

Gruner Stucky SA

Trust & reputation

ranQ Trust Score of Gruner Stucky SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Gruner Stucky SA 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 Stucky SA scores 90.6 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.96.07%
Gruner Stucky SA 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 Stucky SA 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 Stucky SA 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 November 2026.

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

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Location

Avenue de la Gare 19
1920 Martigny

At a glance

Legal form
Branch
UID
CHE-155.453.328
Founded
2011 · 15 years
Last commercial register change
December 24, 2021
Employees
101 to 500
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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