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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsAdliswilStrompartner GmbH
Strompartner GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Strompartner GmbH is the conception, analysis, planning and implementation of projects in the field of renewable energies, in particular: Photovoltaic systems (PV systems), E-mobility solutions and Heat pumps. The company offers its customers comprehensive services, from study and conception to realization and management of projects in the field of renewable energies.

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Offering

Products & services

Industry:Solar & Photovoltaics
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4.1/5

Strompartner GmbH

✓ Offered4
PV systems
PV systems for self-consumption, grid feed-in and battery storage; including design, implementation, maintenance, monitoring, project management and marketing of surplus electricity.
Feasibility study and concept
Feasibility studies, analysis and concept development for solar systems; including cost and return analysis, comparison of options, decision basis and outlining complementary services.
E-mobility
Charging solutions for e-mobility under the Strom-Laden brand; support for charging infrastructure for private and commercial customers.
Heat pumps
Installation of heat pumps with sustainable heating technology; including integration with PV systems, retrofitting of existing systems and support through cantonal subsidies and tax incentives.
Trust & reputation

ranQ Trust Score of Strompartner GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of October 2026

Strompartner GmbH scores 73.2 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.72.124%
  • 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.95.08%
Strompartner GmbH scores 75.7 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.83.012%
  • 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%
Strompartner GmbH scores 85.0 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).85.022%
Strompartner GmbH scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Strompartner GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 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 October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Soodring 13
8134 Adliswil
Opening hours
Mon
08:30 - 12:00, 13:00 - 17:30
Tue
08:30 - 12:00, 13:00 - 17:30
Wed
08:30 - 12:00, 13:00 - 17:30
Thu
08:30 - 12:00, 13:00 - 17:30
Fri
08:30 - 12:00, 13:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-196.017.947
Founded
2017 · 9 years
Last commercial register change
April 16, 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

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