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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsGwatt (Thun)3S Swiss Solar Solutions AG
3S Swiss Solar Solutions AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

3S Swiss Solar Solutions AG develops and manufactures building-integrated photovoltaic (BIPV) systems, including frameless solar modules for roofs, facades, balcony railings and overhead installations. The company provides planning and system-analysis services, monitoring tools (including the 3S Software Suite and 3S Horizon), and partner support and training.

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Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered6
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4.4/5

3S Swiss Solar Solutions AG

Solar roof
Building-integrated in-roof photovoltaic system that replaces conventional roofing materials and combines sustainable power generation with weather protection, 8 standard colours and easy installation.
Solar facade
Frameless BIPV façade system for building-integrated power generation, weather protection and architectural design; colour-matching options, robust and suitable for various substructures.
Solar railing
Building-integrated solar railing that combines fall protection and power generation; bifacial, colour-adjustable and suitable for balconies, terraces and different building styles.
Solar Overhead
Glass-glass canopy for carports, parking spaces and terraces that combines weather protection with solar power generation; bifacial, overhead-tested and designed for multi-use of areas.
3S Services
System design, system analysis, solar module analysis and hail analysis for BIPV systems; including detailed drawings, performance and safety checks, and advice for repair or replacement.
3S Designer
Planning software for in-roof (Indach) solar installations with 3D layout, automatic roof and building detection, system configuration, standard calculations and project documentation.
Trust & reputation

ranQ Trust Score of 3S Swiss Solar Solutions AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

3S Swiss Solar Solutions AG scores 82.2 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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 Swiss Solar Solutions AG scores 85.4 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.90.07%
3S Swiss Solar Solutions AG scores 86.7 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).86.722%
3S Swiss Solar Solutions AG scores 70.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.40.04%
Qualifications+0.00

3S Swiss Solar Solutions AG 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. 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.

Press

Media

April 25, 2025Media
Krise in der Solarindustrie: Die nächste Thuner Solarfirma baut Stellen ab
bernerzeitung.ch
April 25, 2025Media
Thuner Solarunternehmen 3S baut bis zu 25 Stellen ab
blick.ch
September 15, 2024Media
3S Swiss Solar: Wo Meyer Burger scheiterte, hat dieser Schweizer Modulhersteller Erfolg
nzz.ch

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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
Corporation
UID
CHE-430.447.543
Founded
2018 · 8 years
Last commercial register change
March 31, 2026
Employees
51 to 100
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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