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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction managerThunKästli Bau AG
Kästli Bau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Kästli Bau AG plans and carries out infrastructure, earthworks and water engineering projects. The Kästli Group’s activities also include deconstruction, materials logistics, recycling, and the extraction and production of construction materials.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Construction manager
✓ Offered6
Construction
Infrastructure, earthworks and hydraulic construction with planning and delivery of projects designed for later deconstruction and long material loops.
Deconstruction
Controlled deconstruction of structures, including clean material separation and recovery of usable raw materials from single-family houses and industrial buildings.
Material logistics
Supply of construction sites with materials and disposal of construction waste, which is reprocessed in production facilities, with short routes and connected workflows.
Recycling
Recovery of construction waste as raw materials, with around 95 percent of delivered materials kept in the loop and landfills relieved.
Raw material extraction
Extraction of construction raw materials through building material recycling and gravel extraction in the Rubigen gravel pit, with careful extraction and ecological backfilling.
Construction materials
Development and production of circular construction materials from primary and recycled materials, including zirkulit beton® and low-temperature asphalt.
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4.0/5

Kästli Bau AG

Trust & reputation

ranQ Trust Score of Kästli Bau AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of November 2026

Kästli Bau AG scores 54.7 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.59.124%
  • 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.17.610%
  • 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%
Kästli Bau AG scores 90.6 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.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.96.07%
Kästli Bau AG scores 88.3 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).88.322%
Kästli Bau AG scores 47.7 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 35.88.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

Kästli Bau AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 1 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
3
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle31
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 27, 2024Media
Rubigen: Kollaboration im Bau – Fachtagung zeigt neue Wege auf
nau.ch

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Comparisons

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Location

Bierigutstrasse 16
3608 Thun
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-131.184.824
Founded
2011 · 15 years
Last commercial register change
June 24, 2024
Employees
101 to 500

Active in 1 of 26 cantons

  • BEBern
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.
76.0
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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