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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsBaumaIWS Solar AG
IWS Solar AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

IWS SOLAR AG is a provider of products and services in the field of solar energy and renewable energies. The company's core activity includes the distribution of solar systems, emergency power and UPS systems, lightning protection and installation technology, as well as the planning and installation of solar systems for private and commercial customers. Additionally, the company also offers products for self-consumption optimization, pond pumps and other renewable energy products.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered10
Advisory, project planning, installation and wholesale
Advisory, project planning, installation and wholesale for solar energy; including design of off-grid systems, grid-tied systems and pump systems.
Planning of off-grid systems
Planning of off-grid systems for solar power systems; using the planning form and a dedicated planning page for autonomous solar systems.
Planning of grid-tied systems
Planning of grid-tied systems for solar power systems; with its own planning page and planning form for grid-coupled installations.
Planning of pump systems
Planning of pump systems in a solar context; with its own planning page and planning form for pump applications.
Solar systems and components for off-grid systems
Solar modules, charge controllers, batteries, inverters, hybrid units, backup power solutions, installation technology and accessories for off-grid systems.
Solar systems and components for grid-tied systems
Solar modules, inverters, storage systems, wallboxes, self-consumption optimisation, backup power and small 230 V solar systems for grid-tied systems.
Mounting systems for solar systems
Mounting systems for pitched roofs, facades and mast mountings; including universal mounting brackets and vehicle- or ship-specific mounting partners.
Solar pumps and pump systems
Solar pumps, pond pumps, pressure pumps, transfer pumps, sludge extractors and hoses for water and pumping applications.
Solar sets
Off-grid solar sets, camper solar sets, solar fan set and solar boiler sets as preconfigured system packages.
Power stations and all-in-one systems
Mobile power stations and all-in-one systems for portable power supply and flexible energy applications.
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4.5/5

IWS Solar AG

Trust & reputation

ranQ Trust Score of IWS Solar AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

IWS Solar AG scores 83.2 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.76.224%
  • 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.86.510%
  • 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%
IWS Solar AG scores 85.5 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.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.55.07%
IWS Solar AG scores 85.0 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).85.022%
IWS Solar AG scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

IWS Solar AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.6 out of 5 stars from 29 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 29 reviews across all connected sources

Sources
GGoogle4.629
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Unterdorfstrasse 54
8494 Bauma
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.409.626
Founded
1992 · 34 years
Last commercial register change
December 22, 2015
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.
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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