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

About the company

The core activity of Stromwerk AG is the planning, construction, operation and maintenance of photovoltaic solar power plants on the roofs of commercial buildings, multi-family houses, farms and properties in Switzerland. The company offers its customers a complete service, including financing, consulting and optimization of solar surfaces, to enable efficient and sustainable energy production.

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Offering

Products & services

Industry:Solar & Photovoltaics
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4.1/5

Stromwerk AG

✓ Offered4
Consulting
Consulting on solar power and battery storage, including planning, optimisation of existing systems, self-consumption, load management and support for ZEV, vZEV or LEG.
Contracting
Solar contracting for photovoltaic systems and battery storage without own investment, including potential analysis, design, construction, operation, maintenance and settlement of solar power.
ZEV and LEG
Support for ZEV, vZEV, EVG and LEG for sharing and billing solar power within the building, neighbourhood or municipality.
Construction and operation of solar power plants
Construction and operation of solar power plants in Switzerland, focused on commercial rooftops and ongoing plant operations.
Trust & reputation

ranQ Trust Score of Stromwerk AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Stromwerk 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.
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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%
Stromwerk AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Stromwerk 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%
Stromwerk AG scores 37.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stromwerk 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

Regensdorferstrasse 194
8049 Zurich

At a glance

Legal form
Corporation
UID
CHE-114.666.281
Founded
2009 · 17 years
Last commercial register change
June 24, 2026
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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