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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementWollerauSihl Bau GmbH
Sihl Bau GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Sihl Bau GmbH is a construction and project management company offering services in construction management, client representation, local site supervision, renovations and redevelopment, quality assurance, and project development. The company supports building projects from planning through execution with a focus on quality, transparency, and efficiency.

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Products & services

Industry:Construction & Project Management
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Sihl Bau GmbH

General Contractors
Real Estate Project Development
✓ Offered6
Construction Management
Construction management for building projects with control of costs, schedules and workflows; transparent processes, digital methods and clear responsibility through completion.
Client Representation
Client representation across all project phases with representation toward planners, contractors and authorities; leadership, structure and protection of quality, deadlines and costs.
Property Development
Property development from site analysis through planning to realisation; focus on economic viability, quality and efficiency, with added value in use, investment and return.
Site Supervision
Site supervision with control of costs, schedules and quality; clear communication, decisive action and structured support during execution.
Conversions and Renovations
Conversions and renovations from planning to completion; support through all renovation phases with a refurbishment concept and full responsibility.
Quality Assurance
Quality assurance with quality management and a clear framework for all participants in every project phase.
Trust & reputation

ranQ Trust Score of Sihl Bau GmbH

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 October 2026

Sihl Bau GmbH 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%
Sihl Bau GmbH scores 50.8 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.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%
Sihl Bau GmbH 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%
Sihl Bau GmbH 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 October 2026.

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

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Location

Roosstrasse 53
8832 Wollerau

At a glance

Legal form
Limited Liability Company
UID
CHE-210.502.273
Founded
2025 · 1 year
Last commercial register change
October 3, 2025
Employees
1 to 10
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.
88.0
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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