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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionDavos PlatzCompagnoni Bau AG
Compagnoni Bau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Compagnoni Bau AG is a construction company providing building and civil engineering services, including structural and underground works as well as pipeline installation. Its services include excavation and earthworks, concrete drilling, lightweight construction/drywall, renovations and concrete repairs, site works, equipment hire/sales, transport, winter services and property maintenance.

AI-generated
Offering

Products & services

Industry:Building Construction
✓ Offered12
Building construction
Extensions, single-family homes, multi-family houses and other building-construction projects in new-build and conversions.
Conversions & extensions
Conversions for houses, flats, kitchens and bathrooms, as well as extensions and smaller renovation works.
Renovations
Building works for renovations, in particular replacing old water, heating, drainage and underfloor heating lines.
Customer masonry work
Masonry work for conversions and smaller construction jobs, as point of contact for individual customer projects.
Customer plastering work
Clean, careful plastering work for smaller conversions and repairs in the customer area.
Civil engineering
Civil engineering works including bridge construction and other structural work in underground and infrastructure areas.
Pipework & cabling trenches
Sewer systems, trenching for service lines such as water, power and telephone, and trenches for ground probe supply lines.
Excavation work
Trenching work with various excavators and wheel loaders, from smaller excavations to more demanding earthworks.
Concrete drilling
Drilling through almost all types of masonry up to 200 mm diameter, in occupied rooms and in raw construction.
Lightweight systems & dry construction
Work in smaller conversion and interior fit-out areas using lightweight systems and dry construction.
Water damage
Dehumidification, exposing defective lines and subsequent repair of damage caused by moisture and water damage.
Winter service
Snow removal, snow markers, and cleaning of roads, sidewalks, parking lots and forecourts of snow, ice, grit and sand.
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4.1/5

Compagnoni Bau AG

Trust & reputation

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

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Compagnoni Bau AG scores 67.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.75.024%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.40.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Compagnoni Bau AG scores 87.2 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.95.212%
  • 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.70.07%
Compagnoni 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%
Compagnoni Bau AG scores 12.9 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 35.12.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Compagnoni Bau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

Mattastrasse 16A
7270 Davos Platz
Opening hours
Mon
08:00 - 12:00, 13:30 - 18:00
Tue
08:00 - 12:00, 13:30 - 18:00
Wed
08:00 - 12:00, 13:30 - 18:00
Thu
08:00 - 12:00, 13:30 - 18:00
Fri
08:00 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-435.431.503
Founded
2013 · 13 years
Last commercial register change
September 7, 2021
Employees
11 to 20
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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