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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionEichKnupp Bau AG
Knupp Bau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Execution of civil engineering and construction work; development, planning and execution of construction projects; creation of turnkey buildings; consulting in the real estate sector; buying and selling as well as management of plots of land and properties and apartments; participations; carrying out financial and leasing transactions; conclusion and brokerage of license agreements.

Commercial register, canton of LU·As of October 20, 2023View on Zefix
Offering

Products & services

Industry:Building Construction
✓ Offered5
Building construction
Building construction work for industrial, residential and agricultural buildings, from small projects to large developments; consulting, planning and professional implementation.
Civil engineering
Civil engineering work with earthworks, excavation of building pits, trench digging, retaining walls, site works, utility lines, sewer systems, site servicing and stream bank protections.
Renovation
Renovation work with replacement buildings, modernisations, renovations as well as refurbishments, repairs and bricklaying work for clients.
Agricultural buildings
New builds, conversions and extensions for agricultural buildings such as barns, stables, shelters, sheds, machine halls, slurry pits and silos.
Concrete roads
Concrete roads and concrete tracks for construction projects and site servicing; listed on the website as a specialised service area of the construction company.
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4.3/5

Knupp Bau AG

Trust & reputation

ranQ Trust Score of Knupp Bau AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Knupp Bau AG scores 70.8 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.73.324%
  • 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.45.610%
  • 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.95.08%
Knupp Bau AG scores 95.8 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%
Knupp Bau AG scores 83.3 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).83.322%
Knupp Bau AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Knupp Bau AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 5 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
4.8
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.85
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Kirchstrasse 6
6205 Eich
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.775.025
Founded
2006 · 20 years
Last commercial register change
October 20, 2023
Employees
101 to 500
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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