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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction managerErlenbach ZhRampf Bau + Service
Rampf Bau + Service Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Rampf Bau + Service provides construction services from planning through implementation for residential and commercial projects. Its services include general building work, renovations, interior fit-outs and outdoor areas.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Construction manager
✓ Offered4
General Construction Work
Construction work for homes and other projects, from planning through execution. Services cover projects for residential spaces as well as commercial premises.
Remodelling and Renovation
Remodelling and renovation of existing spaces to renew their structure and function. The work adapts and refreshes existing residential and commercial areas.
Interior Fit-Out
Interior fit-out including drywall, flooring and ceiling work, along with other finishing work tailored to the spaces concerned.
Outdoor Works
Outdoor works including terraces, paths, walls and access roads. The work develops and provides access to outdoor areas around buildings and properties.
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Rampf Bau + Service

Trust & reputation

ranQ Trust Score of Rampf Bau + Service

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, Establishment, Media authority

Data basis 42% · As of November 2026

Rampf Bau + Service 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%
Rampf Bau + Service scores 62.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: No data point — the criterion is taken out of the weighting and does not lower the score.—12%
  • 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%
Rampf Bau + Service 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%
Rampf Bau + Service 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 42%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Establishment, Media authority. As of November 2026.

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

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Location

Weinbergstrasse 51
8703 Erlenbach Zh

At a glance

Legal form
Sole proprietorship
UID
CHE-189.022.127
Last commercial register change
November 2, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHErlenbach (ZH)
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.67.06%
  • 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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