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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsAdliswilSol-EM GmbH
Sol-EM GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Sol-EM GmbH designs and engineers solar thermal and photovoltaic systems and supplies components such as flat-plate collectors, vacuum tubes, photovoltaic modules, boilers and storage. Services include planning and engineering, assistance with permits and funding applications, and support for system execution.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
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3.9/5

Sol-EM GmbH

✓ Offered
5
Solar heat
Solar thermal systems for domestic hot-water preparation and heating support for single- and multi-family homes; use of solar energy to generate heat.
Solar power
Photovoltaic systems in various sizes, grid-connected solar installations with feed-in to the public electricity grid and off-grid systems with battery storage.
Planning and consulting
Consulting in the field of solar energy, feasibility assessments, system calculations, building permits and subsidy applications for complete solar systems.
Implementation
Assembly support, partial installations and complete execution of solar systems, from planning to installation.
Products for solar systems
High-performance collector Sol-EM Cobra AC 2.7 and compact solar system Sol-EM KSS as a complete system for domestic hot water and heating.
Trust & reputation

ranQ Trust Score of Sol-EM GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Sol-EM GmbH scores 64.2 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.76.724%
  • 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.45.610%
  • 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.50.08%
Sol-EM GmbH scores 70.2 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.70.212%
  • 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%
Sol-EM 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%
Sol-EM GmbH scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sol-EM GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Sihlstrasse 1
8134 Adliswil
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-494.332.575
Founded
2020 · 6 years
Last commercial register change
November 30, 2020
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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