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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsBaarBSR Bau AG, Bauunternehmung
BSR Bau AG, Bauunternehmung Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BSR Bau AG, Bauunternehmung provides construction services as a general contractor and master builder, and also offers construction management, renovation works and project development services.

AI-generated
Offering

Products & services

Industry:General ContractorsReal Estate Brokerage
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3.6/5

BSR Bau AG, Bauunternehmung

✓ Offered5
General contractor
Planning and execution of building projects as a general contractor, from the initial building intent through all project phases to the completed building.
Masonry and concrete works
Execution of masonry and concrete works in building construction, in particular for residential and commercial buildings as well as new builds and larger construction sites.
Construction management
Construction management for clients and projects, in collaboration with architects and planners from the initial project intent to execution.
Refurbishment and renovation
Refurbishment and renovation works for existing buildings, from adjustments to more comprehensive rehabilitation and renewal projects.
Real estate development
Development of construction projects and real estate ventures, supported by reference projects in the field of new-build and housing developments.
Trust & reputation

ranQ Trust Score of BSR Bau AG, Bauunternehmung: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

BSR Bau AG, Bauunternehmung scores 36.0 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.0.024%
  • 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.80.810%
  • 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%
BSR Bau AG, Bauunternehmung scores 85.5 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.100.012%
  • 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%
BSR Bau AG, Bauunternehmung scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
BSR Bau AG, Bauunternehmung scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BSR Bau AG, Bauunternehmung reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 2.2 out of 5 stars from 23 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
2.2
of 5

Aggregated from 23 reviews across all connected sources

Sources
GGoogle2.223
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Sihlbruggstrasse 105
6340 Baar
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-115.384.833
Founded
2010 · 16 years
Last commercial register change
May 25, 2021
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

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