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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding contractorAu SgSinz bau
Sinz bau Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Sinz bau provides services in civil engineering, demolition and road construction, as well as site organisation and construction management. The company also handles estimation, billing, machine operation and project support on construction sites.

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Service area

Offering

Products & services

Industry:Building contractorCivil engineer
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Sinz bau

Construction manager
✓ Offered4
Civil Engineering, Demolition and Road Construction
Civil engineering, demolition and road construction with demolition work, grading, path construction and excavation handling for day-to-day site operations.
Construction Machinery Operation
Construction machinery operation with 5 to 80 tonne excavators, dozers, wheel loaders, walking excavators and work with a truck licence.
Site Management and Cost Estimation
Site management and cost estimation with measurement, daywork, change orders, invoicing, Devis Quick, Kalk Quick, jour fixe and team leadership.
Surveying and Site Organisation
Surveying and site organisation with Hilti Robotic, Leica Robotic, GPS Leica and structured reporting in day-to-day construction work.
Trust & reputation

ranQ Trust Score of Sinz bau

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of November 2026

Sinz bau 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%
Sinz bau scores 46.3 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.25.012%
  • 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%
Sinz bau 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%
Sinz bau scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of November 2026.

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

Knowledge

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Location

Hauptstrasse 63
9434 Au Sg

At a glance

Legal form
Sole proprietorship
UID
CHE-138.233.553
Founded
2025 · 1 year
Last commercial register change
August 29, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SGAu (SG)
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.
67.0
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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