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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringWald ZhZumbach Tiefbau AG
Zumbach Tiefbau AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Zumbach Tiefbau AG is a construction company specialising in civil engineering and utility installation. Its services include road construction, watercourse engineering, spring collection, landscaping, demolition and excavation, machine hire and a 24‑hour emergency service. The company also operates a specialised Menzi Muck walking excavator for work in difficult terrain.

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Offering

Products & services

Industry:Civil EngineeringSite Preparation
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Zumbach Tiefbau AG

✓ Offered6
Civil engineering works
Earthworks, slope construction, slope stabilisation, sewerage, laying of cable conduits, inspection manholes, core drilling and emergency service for water main breaks.
Road construction
Renewal of road sections, design of forecourts, repair of roads and squares, installation of asphalt surfaces, restoration of unpaved roads and edge finishes.
Waterway construction
Construction work along rivers and streams, waterway maintenance, flood protection, renaturation of habitats and slope stabilisation with wood or stone.
Spring capture
Capturing springs, water abstraction up to the point of injection into the drinking water network, ensuring water quality and sustainable use of the water resource.
Garden and landscaping
Walls with natural stone, gabions and angle plates, slope stabilisation and restoration, visual screening with granite stelae or steel elements, and seeding of lawns.
Machine rental
Rental of construction machinery and equipment such as Menzi-Bagger, cut-off saws, joint cutters, hammers, vibrating plates, vibrating needles and rototillers, partly with a delivery flat-rate.
Trust & reputation

ranQ Trust Score of Zumbach Tiefbau 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.

Zumbach Tiefbau 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%
Zumbach Tiefbau AG scores 84.8 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.89.612%
  • 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.70.07%
Zumbach Tiefbau 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%
Zumbach Tiefbau AG 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

Zumbach Tiefbau 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.

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Location

Unterbachweg 7
8636 Wald Zh

At a glance

Legal form
Corporation
UID
CHE-469.105.332
Founded
2015 · 11 years
Last commercial register change
December 1, 2015
Employees
11 to 20
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.
100.0
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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