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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionZurichDobau GmbH
Dobau GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Dobau GmbH is a construction company that provides new build, renovation, conversion, interior finishing, masonry, concrete, civil engineering, and outdoor area services. The company supports projects for private and commercial clients from planning through execution.

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Products & services

Industry:Building ConstructionReal Estate Project Development
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Dobau GmbH

✓ Offered8
New build
New build of residential houses and buildings, from design via excavation, foundations and shell construction to the roof, interior fit-out and finishing works.
Conversion
Conversion of apartments and properties with layout changes, openings in walls, adjustments to the kitchen, bathroom and living areas, as well as surface works.
Renovations
Renovation of apartments, bathrooms, kitchens and living areas, as well as facade, partial and overall renovations of existing building fabric.
Civil engineering
Civil engineering works including excavation, earthworks, foundations, ground slabs, utility network construction, drainage, sewer systems, driveways and surrounding works.
Outdoor areas
Works in outdoor areas with terraces, seating areas, paths, access points, staircases, forecourts, driveways, walls, paving and drainage.
Concrete construction
Concrete construction with foundations, ground slabs, concrete walls, columns, ceilings/slabs, staircases, ramps, retaining walls as well as formwork, reinforcement and concrete works.
Masonry work
Masonry work for interior walls, exterior walls, load-bearing and non-load-bearing masonry, exposed masonry as well as repairs and additions.
Scaffolding
Scaffolding construction with facade scaffolds, working scaffolds, protective scaffolds, roof safety scaffolds, stair towers, plus planning, assembly and dismantling.
Trust & reputation

ranQ Trust Score of Dobau 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

Dobau 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%
Dobau GmbH scores 57.1 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.39.612%
  • 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.55.07%
Dobau 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%
Dobau 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.

Knowledge

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Location

Badenerstrasse 816
8048 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-412.810.806
Founded
2024 · 2 years
Last commercial register change
January 28, 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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