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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionTrimmisKocher und Boner Bau AG
Kocher und Boner Bau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Kocher and Boner Bau AG encompasses the execution of construction projects in the following areas: new construction, civil engineering, renovation, environmental works, and customer-specific works (including demolition). The company thus offers comprehensive construction services, from planning to execution of new buildings, civil engineering projects, renovations, and environmental works, as well as the execution of customer-specific works and demolitions.

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Offering

Products & services

Industry:Building ConstructionBuilding Maintenance
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3.9/5

Kocher und Boner Bau AG

Civil Engineering
✓ Offered6
New construction
New construction for residential and construction projects, from execution through to realization of complete projects.
Conversion
Conversions for existing buildings, including adaptations and structural changes according to customer requirements.
Civil engineering works
Civil engineering works for construction projects, executed precisely and offered as part of comprehensive construction services.
External works
External works around construction projects, for the comprehensive design of the property and its surroundings.
Customer-specific work
Individual customer work with careful execution according to specific requirements and wishes.
Demolition
Demolition works as part of construction and conversion projects.
Trust & reputation

ranQ Trust Score of Kocher und Boner Bau AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Kocher und Boner Bau AG scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
Kocher und Boner Bau 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%
Kocher und Boner 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%
Kocher und Boner Bau AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kocher und Boner Bau AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schlössli 14
7203 Trimmis

At a glance

Legal form
Corporation
UID
CHE-106.177.583
Founded
1987 · 39 years
Last commercial register change
June 30, 2025
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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