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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesEbikonEugen Bienz AG
Eugen Bienz AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Eugen Bienz AG is the planning, consulting and realization of heating and building technology systems for various types of buildings, including public buildings, hotels, restaurants, homes, hospitals, industrial and commercial buildings, residential buildings and schools. This also includes the creation of energy concepts, project planning, cost calculations, tendering procedures, execution planning, assessments and analyses, as well as the optimization of existing systems.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Advisory services
Advisory services for heat generation and heat distribution, profitability calculations, planning and execution coordination, as well as support during the realization of construction projects.
Design and project planning of HVACS systems
Design, project engineering and execution planning for building heating systems, heat pump systems, solar technology, district heating, heat recovery, as well as ventilation, air-conditioning and sanitary installations.
Site supervision and construction control
Site supervision, control of the executing contractors, ongoing monitoring of installations during construction, cost control and handover of as-built documentation with as-built drawings.
Expert reports and analyses
Expert reports, assessments and analyses of systems, as well as optimization of existing systems in the field of building services engineering and energy.
Energy concepts
Energy concepts for construction projects focusing on energy-saving, environmentally friendly and economically justifiable systems.
Coordination of building services
Coordination of building services with the architect, the design team and the executing contractors during planning and implementation.
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3.9/5

Eugen Bienz AG

Trust & reputation

ranQ Trust Score of Eugen Bienz AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Eugen Bienz AG scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Eugen Bienz 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%
Eugen Bienz 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%
Eugen Bienz AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Eugen Bienz 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 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Luzernerstrasse 1
6030 Ebikon
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 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.247.364
Founded
1984 · 42 years
Last commercial register change
August 22, 2025
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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