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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentPhotovoltaicsSustenElektro-Lumen GmbH
Elektro-Lumen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Elektro-Lumen GmbH plans electrical systems and carries out electrical installations in industrial, commercial, service and residential buildings. Its services also include telematics systems, electrical installation inspections, photovoltaic systems and electric heating.

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Service area

Offering

Products & services

Industry:Photovoltaics
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4.1/5

Elektro-Lumen GmbH

10
Photovoltaic systems
Photovoltaic systems with mounting, installation and grid connection; advice on one-off remuneration, cost-covering feed-in tariff and tax deduction.
Electrical installations
Electrical systems for industrial, commercial, service and residential buildings; lighting, power, heating and telephone installations as well as building cabling.
Electrical planning
Planning of conversions, extensions and new builds; project proposals, implementation solutions and CAD-supported development of the optimal electrical installation.
Telematics systems
All-IP telematics with Internet connection, Swisscom TV, telephone systems, networks and sale of telephone handsets.
Electrical inspections
Acceptance inspections, final inspections and periodic checks of electrical installations according to legal requirements in residential, office, commercial and industrial buildings.
Electric heating systems
Infrared heaters as ceiling, wall or mirror installation; including connection cable, fixing material, radio thermostat and intelligent control.
Electrical repairs
Repairs for short circuits in electrical installations and for faults in electrical appliances.
TV systems
Satellite systems and new TV devices, with offers on request.
Electrical household appliances
Sale of new energy-efficient household appliances to reduce electricity consumption and energy use.
Electrobiology
Advice for electrosensitive people, measurement of low-frequency and high-frequency fields, recommendations for mains disconnection in the bedroom.
Trust & reputation

ranQ Trust Score of Elektro-Lumen GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of November 2026

Elektro-Lumen GmbH scores 67.2 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.81.624%
  • 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.35.08%
Elektro-Lumen GmbH scores 83.0 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%
Elektro-Lumen GmbH scores 86.7 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).86.722%
Elektro-Lumen GmbH scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Elektro-Lumen GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle59
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Kantonsstrasse 102
3952 Susten

At a glance

Legal form
Limited Liability Company
UID
CHE-109.451.177
Founded
2002 · 24 years
Last commercial register change
June 30, 2026
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.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Active in 1 of 26 cantons · 1 municipality

    • VSLeuk

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