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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationTeufen ArKoller Elektro-Anlagen AG
Koller Elektro-Anlagen AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Koller Elektro Anlagen AG is the provision of electrical installation and system services, including planning, installation, maintenance and repair of electrical systems and installations.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered10
Electrical planning / consulting / tendering
Electrical planning, consulting and tender submissions for electrical installations and projects.
Power and low-current installations
Power and low-current installations for households, commercial and agricultural premises for new builds and renovations, including building automation.
24-hour standby service / emergency service
24-hour standby service and emergency support for urgent faults and interventions.
Public lighting systems
Planning and installation of public lighting systems.
Fibre-optic (LWL) installations
Installation of fibre-optic and LWL systems.
IT networks
IT networks for buildings and businesses.
Telephone systems / VoIP
Telephone systems and VoIP solutions for private and commercial installations.
Security / surveillance systems
Security and surveillance systems for buildings and facilities.
TV/SAT installations
TV and SAT installations for receiving and distribution systems.
Sales and service of household appliances
Sales and service of household appliances.
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4.1/5

Koller Elektro-Anlagen AG

Trust & reputation

ranQ Trust Score of Koller Elektro-Anlagen AG: 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.

Koller Elektro-Anlagen AG 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%
Koller Elektro-Anlagen 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%
Koller Elektro-Anlagen AG scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Koller Elektro-Anlagen 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

Koller Elektro-Anlagen AG 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

Alte Haslenstrasse 6
9053 Teufen Ar

At a glance

Legal form
Corporation
UID
CHE-109.086.557
Founded
2001 · 25 years
Last commercial register change
February 28, 2024
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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