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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateProperty ManagementBirsfeldenLeuenberger AG, Birsfelden
Leuenberger AG, Birsfelden Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Leuenberger AG, Birsfelden is an engineering firm for energy and building services. The company provides consulting, design, coordination and construction management for heating, ventilation, air conditioning, refrigeration, sanitary systems, building services and building physics.

AI-generated
Offering

Products & services

Industry:Property Management
✓ Offered6
Engineering office for energy and building services
Advisory, planning, coordination and site management for heating, ventilation, air conditioning, refrigeration, sanitary systems, building services engineering and building physics.
Heating design
Conventional systems, heat pumps, district heating, wood-chip boilers, heat power cogeneration, combined heat and power plants, as well as heat recovery and use of waste heat, geothermal energy from groundwater, lakes and the ground.
Ventilation, air-conditioning and refrigeration design
Ventilation systems, partial air-conditioning and air-conditioning installations, gentle air conditioning, chilled ceilings, adiabatic air cooling, energy recovery, refrigeration and return-cooling plants, free cooling and energy cascade systems.
Sanitary system design
Water supply, domestic hot water production, water treatment, waste-heat recovery, wastewater disposal, rainwater use and fire-extinguishing installations.
Building services engineering design
Energy and supply concepts, condition analyses, refurbishment concepts and overall planning for building installations.
Building physics
Advisory on energy and heat-engineering measures as well as building-physics calculations and investigations.
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4.1/5

Leuenberger AG, Birsfelden

Trust & reputation

ranQ Trust Score of Leuenberger AG, Birsfelden: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Leuenberger AG, Birsfelden has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Leuenberger AG, Birsfelden scores 85.5 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.55.07%
Leuenberger AG, Birsfelden 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%
Leuenberger AG, Birsfelden scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Leuenberger AG, Birsfelden reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Hauptstrasse 12
4127 Birsfelden

At a glance

Legal form
Corporation
UID
CHE-107.794.755
Founded
1978 · 48 years
Last commercial register change
November 6, 2012
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.
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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