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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding contractorGamsenGsponer AG, Bauunernehmung
Gsponer AG, Bauunernehmung Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gsponer AG, Bauunernehmung is a construction company providing building and civil engineering services, as well as conversions and renovations. It carries out projects for private clients and public-sector clients and also works in landscaping and outdoor areas.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Building contractor
✓ Offered5
Building construction
Building construction for private clients and public authorities, with precise and reliable execution of new builds and construction projects in Upper Valais.
Civil engineering
Civil engineering for construction projects in Upper Valais, including work for private clients and public authorities as part of the construction company.
Conversion and renovation
Conversion and renovation of existing buildings, carried out as part of the construction company for private and public projects.
Landscaping and grounds
Landscaping and grounds as an additional construction service around buildings and facilities in Upper Valais.
24-hour picket duty
24-hour picket duty for urgent deployments and ongoing support for construction sites and structures.
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3.5/5

Gsponer AG, Bauunernehmung

Trust & reputation

ranQ Trust Score of Gsponer AG, Bauunernehmung: 3.5 out of 5.0

Trust Score3.5/ 5.0

Solid

x

Data basis 54% · As of November 2026

Gsponer AG, Bauunernehmung 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%
Gsponer AG, Bauunernehmung 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%
Gsponer AG, Bauunernehmung scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Gsponer AG, Bauunernehmung scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gsponer AG, Bauunernehmung reaches a ranQ Trust Score of 3.5 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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Location

Kantonsstrasse 331
3900 Gamsen

At a glance

Legal form
Branch
UID
CHE-451.056.680
Founded
2026 · 0 years
Last commercial register change
March 31, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • VSBrig-Glis
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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