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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryNiederwil SgBion Bauhaus AG
Bion Bauhaus AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bion Bauhaus AG is part of Heim AG Heizsysteme. It supplies renewable heating and energy systems such as heat pumps, wood‑fuel combustion systems, photovoltaic systems, combined heat-and-power units, warm‑air heating, drying technology, and hydrogen and energy‑management solutions.

AI-generated
Offering

Products & services

Industry:Mechanical Engineering Industry
✓ Offered12
Heat pumps
Heat pumps in various output ranges, air-to-water heat pumps, brine-to-water heat pumps, large heat pumps, heat pump boilers, and cooling and air-conditioning systems.
Wood energy
Wood-fired heating systems, fuel logistics, residual material logistics, as well as flue gas aftertreatment for wood-based heating systems and energy plants.
Solar systems
Photovoltaic solar systems with solar panels, inverters and storage variants for tailor-made energy solutions.
Energy management
Intelligent energy management systems for efficient and sustainable use of energy; including apps and a Home Manager reference on the website.
Drying technology
Drying technology as a product group within the range of renewable heat generators for industrial and commercial applications.
Hydrogen solutions
Hydrogen solutions as part of the product portfolio for renewable heat generation and energy applications.
Consulting
Consulting from the first idea through project planning to implementation, and throughout the entire service life of the plant.
Planning
Planning of tailor-made energy solutions and systems across all product groups.
Execution & installation
Execution and installation of heating and energy solutions across all product groups.
Production
Production of our own systems and components as part of renewable heating and energy solutions.
Development
Development of heating systems and energy solutions as an additional service alongside consulting, planning and production.
Operation & maintenance
Operation and maintenance of the systems over their entire service life, supplemented by customer service and a service hotline.
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4.0/5

Bion Bauhaus AG

Trust & reputation

ranQ Trust Score of Bion Bauhaus AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Bion Bauhaus AG scores 63.3 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.60.324%
  • 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.58.610%
  • 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.78.08%
Bion Bauhaus AG scores 75.9 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.89.612%
  • 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%
Bion Bauhaus 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%
Bion Bauhaus AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bion Bauhaus AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 9 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
4.1
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.19
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Im Dorf 23
9203 Niederwil Sg
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 - 17:00
Sat
10:30 - 12:30
Sun
09:30 - 17:00

At a glance

Legal form
Branch
UID
CHE-351.587.652
Founded
2015 · 11 years
Last commercial register change
September 11, 2015
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.
76.0
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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