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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsGwatt (Thun)3S Solar Plus GmbH
3S Solar Plus GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

3S Solar Plus GmbH develops and manufactures building-integrated photovoltaic (BIPV) systems for integration into roofs, facades, balcony railings and overhead installations. The company also provides planning and monitoring software, system planning and analysis services, training and partner support, with production carried out in Switzerland.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered6
Solar roof
Building-integrated photovoltaic modules as roofing, replacing conventional roofing materials and generating solar power; for roof integration, weather protection and architecturally seamless execution.
Solar façade
Frameless building-integrated photovoltaics for façades, generates electricity, replaces façade materials and is designed for aesthetics, weather protection, fire safety and flexible installation.
Solar railings
Building-integrated photovoltaic railings for balconies and terraces, replacing conventional railings, generating electricity on both sides and meeting fall-protection requirements.
Solar Overhead
Glass-based canopies for carports, parking spaces and terraces with integrated photovoltaics combine weather protection, architecture and power generation in one element.
3S Designer
Planning software for roof-integrated solar systems, supports project planning, roof input, 3D design, safety calculations and technical documentation for installers and planners.
Services
Planning of new systems, analysis of existing installations, solar module analysis and hail analysis; including module layouts, detail drawings, performance testing and damage assessment.
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4.4/5

3S Solar Plus GmbH

Trust & reputation

ranQ Trust Score of 3S Solar Plus GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

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Data basis 96% · As of October 2026

3S Solar Plus GmbH scores 82.2 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.80.424%
  • 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.72.110%
  • 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.100.08%
3S Solar Plus GmbH scores 80.8 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.79.212%
  • 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.82.07%
3S Solar Plus 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%
3S Solar Plus GmbH scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

3S Solar Plus GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 16 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
4.8
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.816
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Schorenstrasse 39
3645 Gwatt (Thun)
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-382.233.204
Founded
2018 · 8 years
Last commercial register change
August 17, 2022
Employees
21 to 50
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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