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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringBuchrainBK-Grundbauberatung AG
BK-Grundbauberatung AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of BK Grundbauberatung AG is the provision of services in the field of foundation engineering, particularly in geology, hydrogeology, geotechnics and measurement technology. The company offers consulting services for construction projects by analyzing the subsoil and predicting local changes, ensuring a safe and stable foundation for buildings.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered5
Geotechnics
Excavation pit and slope stabilisation, foundations, dewatering, monitoring concepts, construction supervision and insurance expertise.
Geology
Subsurface investigations, geological and hydrogeological reports, and support during ground-source borehole drilling.
Hydrogeology
Groundwater prospecting, groundwater heat use, as well as stormwater retention and infiltration.
Contaminated Site Remediation Engineering
Historical and technical investigations, as well as remediation and monitoring concepts.
Instrumentation & Surveying
Inclinometer measurements, driven and driven core probing, as well as piezometers and groundwater monitoring.
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4.0/5

BK-Grundbauberatung AG

Trust & reputation

ranQ Trust Score of BK-Grundbauberatung AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

BK-Grundbauberatung AG scores 59.3 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.53.824%
  • 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.49.510%
  • 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%
BK-Grundbauberatung AG scores 89.3 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.70.07%
BK-Grundbauberatung AG 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%
BK-Grundbauberatung AG scores 11.7 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 35.11.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BK-Grundbauberatung AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 6 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
3.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle3.76
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Unterdorfstrasse 9
6033 Buchrain
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-106.454.185
Founded
1989 · 37 years
Last commercial register change
January 28, 2026
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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