ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionWinkelBünter Bau AG
Bünter Bau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bünter Bau AG is the provision of construction and construction-related services, including planning, execution and management of construction projects with modern machinery and materials.

AI-generated
Offering

Products & services

Industry:Building ConstructionBuilding Maintenance
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
3.8/5

Bünter Bau AG

Civil Engineering
✓ Offered5
New construction
New buildings for single- and multi-family houses, schools, kindergartens, agricultural buildings and commercial premises; execution of exposed masonry and architectural concrete.
Renovation and extensions
Renovations and extensions, conversions down to the foundation walls, adjustments between old and new materials, and change of use of farmhouses into residential and commercial buildings.
Civil engineering
Civil engineering works with special concrete foundations, trenches for sewerage and energy supply, and other work in and on the ground.
Special construction works
Smaller and supplementary works such as access roads, paving slabs for seating areas, block pavers for courtyard driveways and parking spaces, as well as core drilling and general customer works.
Civil engineering works at the airport
Runway works at Flughafen Zürich-Kloten, including work for the Blind Landing System and civil engineering works at night.
Trust & reputation

ranQ Trust Score of Bünter Bau AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Bünter Bau AG scores 56.2 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.50.024%
  • 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.45.610%
  • 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.88.08%
Bünter Bau AG scores 76.6 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.79.212%
  • 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.55.07%
Bünter 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%
Bünter Bau AG scores 5.1 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 35.5.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bünter Bau AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 3.4 out of 5 stars from 5 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
3.4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle3.45
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Bünter Bau AG has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Bünter Bau AG in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Bünter Bau AG by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Bünter Bau AG to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Alte Landstrasse 1
8185 Winkel

At a glance

Legal form
Corporation
UID
CHE-220.978.482
Founded
2018 · 8 years
Last commercial register change
August 26, 2026
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    WA
    Weilenmann AG Kempttal
    Effretikon
    SB
    Specogna Bau AG
    Kloten
    SB
    Scherrer Bau AG
    Horgen
    MA
    Marti AG, Bauunternehmung
    Zurich
    DB
    Duttweiler Bau GmbH
    Bachs
    NK
    N. Krähenbühl & von Känel Bau GmbH
    Rafz
    RG
    REBA GmbH
    Bauma
    MH
    Markwalder Hochbau GmbH
    Zurich