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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionBoswilBucher + Joho AG
Bucher + Joho AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Bucher + Joho AG is the provision of construction and construction-related services, particularly in the areas of building construction, civil engineering, renovation and customer service, including sealing and injection work, structural reinforcement, earthquake retrofitting, concrete repairs and other technical building services.

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Products & services

Industry:Building ConstructionBuilding Maintenance
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Bucher + Joho AG

Civil Engineering
✓ Offered4
Building construction
Single- and multi-family houses, property developments and industrial buildings; schedule-compliant execution, professional construction work and supervision of new-build projects.
Civil engineering
Utility line construction, sewer systems, secondary infrastructure connections, water main break repairs and renovations, surface paving, as well as bridge construction and bridge refurbishments.
Conversions
Consulting, planning, management and execution of conversions, renovations and extensions; including structural measures, façade refurbishments and energy-efficiency renovations.
Maintenance service
Waterproofing and injection work against penetrating water, bonded reinforcement, concrete restoration, component and earthquake strengthening, as well as smaller construction and supplementary works.
Trust & reputation

ranQ Trust Score of Bucher + Joho AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Bucher + Joho AG scores 68.5 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.70.224%
  • 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.63.210%
  • 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%
Bucher + Joho AG scores 94.3 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.90.07%
Bucher + Joho AG scores 86.7 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).86.722%
Bucher + Joho AG scores 25.0 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 35.40.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Bucher + Joho AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 11 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle4.511
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

June 6, 2013Media
Freiämter Bauunternehmer realisiert in Zürich den grössten Skatepark von Europa
aargauerzeitung.ch

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Location

Albisweg 8
5623 Boswil

At a glance

Legal form
Corporation
UID
CHE-107.114.674
Founded
1976 · 50 years
Last commercial register change
June 29, 2023
Employees
51 to 100
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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