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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationOltenKäser AG, Elektro + Telekommunikation
Käser AG, Elektro + Telekommunikation Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Käser AG, Elektro + Telekommunikation provides electrical installation and telecommunication services, including building automation, photovoltaic systems, e-mobility charging solutions, shared energy (ZEV) installations, as well as planning, inspection, maintenance and consulting.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered9
Electrical installations
High- and low-voltage installations, planning, lighting and power installations, network systems, public address systems (PA/UKV), fire alarm systems, emergency lighting and safety systems for residential buildings, industry, commercial premises and public buildings.
Telematics
Internet telephony (VoIP), PBX telephone systems, data networks, LWL fibre-optic cables with connections and remote maintenance for IT and communications.
Building services
Building automation with KNX and Loxone, smart home, visualisations, active networks and cloud connections for residential buildings, industry and commercial premises.
Photovoltaics
Planning and installation of PV systems for solar power generation, focusing on self-supply, cost reduction and use of roof and exterior areas.
Inspections & safety
Periodic and independent inspections, final checks, thermography, energy consulting, expert reports, safety documentation, network analyses and asbestos in the electrical sector.
Service & maintenance
Individual service and maintenance contracts, maintenance of systems and 24/7 on-call duty for faults in industry, commercial premises and private residential buildings.
E-mobility
Advisory and planning, permits, electrical installation, cloud connections, programming and maintenance of charging stations for electric vehicles.
ZEV systems
Advisory, planning, site clarifications, selection of measuring equipment, load management, programming, cloud connections, billing administration and maintenance for self-consumption communities.
Planning & consulting
Analysis and consulting, concept and strategy, cost estimate and quotation, tendering, detailed planning, specialist site management, cost control and as-built documentation.
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4.1/5

Käser AG, Elektro + Telekommunikation

Trust & reputation

ranQ Trust Score of Käser AG, Elektro + Telekommunikation: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Käser AG, Elektro + Telekommunikation scores 56.6 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.57.924%
  • 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.58.610%
  • 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%
Käser AG, Elektro + Telekommunikation scores 95.0 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.82.07%
Käser AG, Elektro + Telekommunikation 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%
Käser AG, Elektro + Telekommunikation scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Käser AG, Elektro + Telekommunikation reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 9 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
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle49
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gheidgraben 4
4600 Olten
Opening hours
Mon
07:15 - 11:45, 13:15 - 16:30
Tue
07:15 - 11:45, 13:15 - 16:30
Wed
07:15 - 11:45, 13:15 - 16:30
Thu
07:15 - 11:45, 13:15 - 16:30
Fri
07:15 - 11:45, 13:15 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.970.308
Founded
1955 · 71 years
Last commercial register change
July 17, 2026
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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.95.03%
    • Full methodology

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