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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsBreitenbachStark Strom GmbH
Stark Strom GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Stark Strom GmbH is the installation and optimization of solar power systems as well as the sale and installation of energy storage systems.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered4
Electrical installation
Planning, installation and maintenance of electrical systems; quick help in case of defects, modifications in existing installations and construction work from foundation earthing to luminaire installation.
Solar power systems
Planning and installation of solar systems, including site measurements, approval procedures, subsidy applications, mounting, commissioning and support during acceptance tests and maintenance.
Power optimization
Control systems, metering and visualization solutions, as well as optimization of sales and self-consumption for self-generated power; also remotely controlled or automatic switching.
Power storage
Eco-friendly power storage based on salt, including consultation, installation and solutions for self-consumption, hot-water use and emergency power supply.
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4.1/5

Stark Strom GmbH

Trust & reputation

ranQ Trust Score of Stark Strom GmbH: 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.

Stark Strom GmbH 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%
Stark Strom GmbH scores 80.1 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%
Stark Strom GmbH scores 83.3 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).83.322%
Stark Strom GmbH scores 6.6 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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stark Strom GmbH 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

Brislachstrasse 25
4226 Breitenbach

At a glance

Legal form
Limited Liability Company
UID
CHE-190.336.414
Founded
2015 · 11 years
Last commercial register change
November 3, 2016
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.85.03%
    • Full methodology

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