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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringBoswilFranz Bucher Tiefbau AG
Franz Bucher Tiefbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Franz Bucher Tiefbau AG performs excavation, grading and earthworks, pipeline and water-construction works, as well as demolition and contaminated-site remediation. The company also provides natural stone wall construction, concrete cutting and drilling, and operates a fleet of construction machines for mechanical earthworks.

AI-generated
Offering

Products & services

Industry:Civil Engineering
✓ Offered7
Excavation work
Excavation work for building pits and site preparation, including mechanical earthworks.
Deconstruction / demolition
Deconstruction and demolition work for buildings and structures.
Utility and water engineering
Utility and water engineering for infrastructure projects in civil engineering.
Grading work
Grading work for preparing and leveling construction and work areas.
Contaminated site remediation
Remediation of contaminated sites and polluted soils as part of deconstruction and construction work.
Natural stone walls
Construction of natural stone walls in outdoor and civil engineering work.
Concrete cutting & drilling
Concrete cutting and core drilling for conversion, deconstruction and construction work.
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4.2/5

Franz Bucher Tiefbau AG

Trust & reputation

ranQ Trust Score of Franz Bucher Tiefbau AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Franz Bucher Tiefbau AG scores 76.3 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.75.724%
  • 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.82.910%
  • 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.70.08%
Franz Bucher Tiefbau AG 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%
Franz Bucher Tiefbau 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%
Franz Bucher Tiefbau AG scores 11.1 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 35.11.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Franz Bucher Tiefbau AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 25 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
4.6
of 5

Aggregated from 25 reviews across all connected sources

Sources
GGoogle4.625
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Industriestrasse 10
5623 Boswil
Opening hours
Mon
07:30 - 09:00, 09:15 - 11:30, 13:00 - 16:45
Tue
07:30 - 09:00, 09:15 - 11:30, 13:00 - 16:45
Wed
07:30 - 09:00, 09:15 - 11:30, 13:00 - 16:45
Thu
07:30 - 09:00, 09:15 - 11:30, 13:00 - 16:45
Fri
07:30 - 09:00, 09:15 - 11:30, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-114.932.287
Founded
2009 · 17 years
Last commercial register change
December 2, 2011
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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