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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTesting & Inspection CentersWallisellenHolzer Elektrokontroll AG
Holzer Elektrokontroll AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Holzer Elektrokontroll AG is the performance of electrical installation inspections, including periodic inspections, final inspections, acceptance inspections and installation inspections in the event of changes in ownership, as well as the preparation of expert opinions and reports in the field of electrical safety.

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Products & services

Industry:Testing & Inspection Centers
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Holzer Elektrokontroll AG

✓ Offered6
Electrical installation inspections
Electrical installation inspections for residential buildings, industrial and commercial properties, public buildings, schools, offices, hotels, restaurants, laboratories and other sites.
Periodic inspections and final inspections
Periodic inspections at the request of the electricity utility, safety certificates (SINA), independent final inspections of new installations and final inspections for self-installed electrical installations.
Installation inspections during property transfer and tenant change
Installation inspections during the transfer of ownership of residential property, as well as inspections after a tenant change, including condition analyses of the electrical installations.
Infrared thermography
Infrared thermography of electrical installations to identify thermal irregularities and potential safety risks.
Safety consultations
Safety consultations relating to electrical installations and inspection requirements for private, commercial and public sites.
Electrical expert reports and expert opinions
Electrical expert reports and opinions for assessments of electrical installations and safety-relevant issues.
Trust & reputation

ranQ Trust Score of Holzer Elektrokontroll AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Holzer Elektrokontroll AG scores 61.4 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.76.724%
  • 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.35.08%
Holzer Elektrokontroll AG scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Holzer Elektrokontroll 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%
Holzer Elektrokontroll AG scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Holzer Elektrokontroll AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Industriestrasse 28
8304 Wallisellen

At a glance

Legal form
Corporation
UID
CHE-103.363.913
Founded
1985 · 41 years
Last commercial register change
April 15, 2019
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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