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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsLucerneGebr. Amberg Bauunternehmung AG
Gebr. Amberg Bauunternehmung AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Gebr. Amberg Bauunternehmung AG is a construction company that carries out building construction, renovation, civil engineering and demolition works, and provides services as a general contractor and in real estate/project development.

AI-generated
Offering

Products & services

Industry:General Contractors
✓ Offered6
Building construction
New builds and conversions of single- and multi-family houses, commercial and industrial buildings; client masonry work as well as smaller civil engineering works.
Renovation and renewal construction
Renovations, refurbishments and conversions of single- and multi-family houses as well as commercial buildings, including bathroom refurbishments and upgrades of existing properties.
Civil engineering & demolition
Minor civil engineering works and demolition works as part of building, conversion and refurbishment projects.
General contracting & project development
Client advisory services, feasibility studies, building and land analyses, project and site development, planning, project management, site supervision and marketing.
Total contracting
Taking over all planning and project services with a guarantee for the real estate project.
Real estate development
Development of real estate projects for investors, landowners, clients, architects and authorities; from the project idea to handover.
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4.2/5

Gebr. Amberg Bauunternehmung AG

Trust & reputation

ranQ Trust Score of Gebr. Amberg Bauunternehmung AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Gebr. Amberg Bauunternehmung AG scores 68.0 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.73.724%
  • 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.68.910%
  • 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.50.08%
Gebr. Amberg Bauunternehmung 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%
Gebr. Amberg Bauunternehmung 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%
Gebr. Amberg Bauunternehmung AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gebr. Amberg Bauunternehmung AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 14 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
4.6
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.614
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Obergrundstrasse 108
6005 Lucerne
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.888.747
Founded
1996 · 30 years
Last commercial register change
August 11, 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.100.06%
  • 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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