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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding contractorSchaffhausenBolli Bau AG
Bolli Bau AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Bolli Bau AG is a construction company carrying out new-build and conversion projects in building construction and civil engineering, as well as facade construction.

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Presence

Service area

Offering

Products & services

Industry:Building contractorCivil works
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Bolli Bau AG

Excavation
Mason
✓ Offered9
Building construction
Building construction for new builds and conversions, residential construction, industrial construction, special-purpose buildings and exposed concrete construction.
Civil engineering
Civil engineering works, infrastructure construction, demolition and dismantling, drilling and milling of concrete, transport and skips.
Facade construction
Facade construction for new builds, conversions and renovations, as a specialized service in the building and civil engineering environment.
Conversion & Renovation
Conversion and renovation work for existing buildings, complemented by dismantling and structural adaptations.
Planning
Planning of construction projects from the idea to handover of the keys, as part of construction management.
Realisation
Realisation of construction projects from implementation to completion, in coordination with the other construction services.
Project development
Project development for construction projects, as part of the service from the idea to handover of the keys.
Property management
Property management of real estate within the scope of the offered competencies and the construction and real estate environment.
Real estate marketing
Real estate marketing as an additional competency alongside planning, realisation and property management.
Trust & reputation

ranQ Trust Score of Bolli Bau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Bolli Bau 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%
Bolli Bau AG scores 89.8 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.90.07%
Bolli Bau AG 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%
Bolli Bau AG scores 13.7 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 35.13.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bolli Bau 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 November 2026.

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

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Location

Längenbergstrasse 7
8200 Schaffhausen

At a glance

Legal form
Corporation
UID
CHE-489.732.420
Founded
2015 · 11 years
Last commercial register change
July 3, 2025
Employees
51 to 100

Active in 1 of 26 cantons

  • SHSchaffhausen
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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