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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryIndustryElectronics manufacturerSchaffhausenWenger + Wirz AG
Wenger + Wirz AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Wenger + Wirz AG plans and installs high- and low-voltage electrical systems, lighting and telecommunications infrastructure. Its services also include building technology, e-mobility, project planning and consulting, maintenance, and safety inspections.

AI-generated
Offering

Products & services

Industry:Electronics manufacturer
✓ Offered8
Electrical installations
Electrical installations in industry, commercial premises and residential construction; electrical installations from execution through to professional commissioning.
Telematics
Telematics for internet telephony and communication infrastructure; professional setup of the technical basis for efficient communication.
Building technology
Building technology with building automation; tailored solutions for smart living and everyday life.
E-mobility
E-mobility with planning and installation of charging stations for electric cars.
ZEV systems
ZEV systems for office buildings and multi-family houses; solutions for self-generated electricity in shared self-consumption.
Service & maintenance
Service, fault finding, troubleshooting, repairs and regular maintenance of systems.
Planning & consulting
Planning and consulting for building technology projects; structured preparation as a basis for project success.
Inspection & safety
Inspection and safety of electrical installations; professional testing and regular maintenance for safe execution.
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4.3/5

Wenger + Wirz AG

Trust & reputation

ranQ Trust Score of Wenger + Wirz AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of November 2026

Wenger + Wirz AG scores 76.3 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.72.324%
  • 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.84.710%
  • 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%
Wenger + Wirz AG 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%
Wenger + Wirz AG scores 86.7 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).86.722%
Wenger + Wirz AG scores 40.0 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Wenger + Wirz AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 27 customer reviews. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 27 reviews across all connected sources

Sources
GGoogle4.527
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

November 28, 2023Media
R. Graf & Co. AG fusioniert mit der Wenger + Wirz AG
schaffhausen24.ch

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Location

Ebnatstrasse 127
8200 Schaffhausen
Opening hours
Mon
07:15 - 12:00, 13:30 - 17:00
Tue
07:15 - 12:00, 13:30 - 17:00
Wed
07:15 - 12:00, 13:30 - 17:00
Thu
07:15 - 12:00, 13:30 - 17:00
Fri
07:15 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.070.169
Founded
1975 · 51 years
Last commercial register change
July 30, 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.
100.0
6%
  • 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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