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

About the company

Elektro SEM AG is an electrical installation service provider offering consulting and planning as well as electrical installations and shopfitting. Its services include building automation, multimedia solutions, e-mobility charging-station installation and ongoing service and maintenance.

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Products & services

Industry:Electrical Planning & Installation
✓ Offered
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3.9/5

Elektro SEM AG

7
Advisory / Planning
Advisory and planning of electrical installations, individual needs assessment and project-specific solution development for residential, commercial and industrial clients.
Electrical Installations
Electrical installations for residential, commercial and industrial clients, including solutions for electrical infrastructure and execution of installation projects.
Shop Fitting
Electrical-related shop fitting with comprehensive solutions for the build-out and technical equipment of retail and sales areas.
Building Automation
Building automation to improve energy efficiency and comfort, with solutions for automated building functions and controls.
Multimedia
Integration of multimedia and entertainment technology, including technical implementation for a fully functioning multimedia experience.
E-Mobility
Installation of charging stations for electric vehicles and support related to e-mobility.
Service and Maintenance
Service and maintenance after installation, including ongoing support and maintenance of electrical systems.
Trust & reputation

ranQ Trust Score of Elektro SEM AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Elektro SEM AG scores 67.6 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.73.324%
  • 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.78.08%
Elektro SEM AG scores 67.5 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.58.012%
  • 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%
Elektro SEM 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%
Elektro SEM AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Elektro SEM AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.8 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
4.8
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.85
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Buechental 3
9245 Oberbüren
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-488.836.407
Founded
2022 · 4 years
Last commercial register change
July 19, 2024
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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