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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationGümmenenThomas Käser AG
Thomas Käser AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Thomas Käser AG is the provision of electrical installations, including service, extension and maintenance work as well as new and renovation projects in the field of electrical engineering.

AI-generated
Offering

Products & services

Industry:Electrical Planning & InstallationSolar & Photovoltaics
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Thomas Käser AG

✓ Offered7
Electrical installations
Electrical installations for new builds and conversions as well as service, extension and maintenance work; power supply, distribution, network technology, lighting, smart home and security components.
Solar power / Photovoltaics
Photovoltaic systems from planning and installation to maintenance; ZEV solutions with self-consumption, metering technology and automated billing.
Building automation
Building automation with KNX and BUS technologies, networking of installations, control of lighting scenes and devices, integration of multimedia and smart home functions.
Electrical inspections
Electrical inspections in residential developments and industry; acceptance inspections and periodic inspections as an independent inspection body in accordance with ESTI.
Service and maintenance
Service, maintenance and upkeep of electrical systems; fault rectification, checks against standards and regulations, adjustments and extensions.
Energy consulting
Energy consulting with building analysis, measures catalogue, renovation roadmap, economic viability calculation and information on subsidies.
Lighting installations
Lighting installations and lighting concepts for cable, rail, rod, floor, ceiling and wall mounting.
Trust & reputation

ranQ Trust Score of Thomas Käser AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Thomas Käser AG scores 63.8 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.63.324%
  • 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.88.08%
Thomas Käser 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%
Thomas Käser AG 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%
Thomas Käser AG scores 42.9 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 35.42.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thomas Käser AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 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
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Trüllernstrasse 35 A
3205 Gümmenen
Opening hours
Mon
08:00 - 12:00, 13:00 - 16:30
Tue
08:00 - 12:00, 13:00 - 16:30
Wed
08:00 - 12:00, 13:00 - 16:30
Thu
08:00 - 12:00, 13:00 - 16:30
Fri
08:00 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-116.163.140
Founded
2010 · 16 years
Last commercial register change
February 9, 2012
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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