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

About the company

The core activity of Portenier Elektro is the provision of electrical services, including electrical installations, lighting, communication, smart home solutions and network maintenance, as well as the sale of household appliances and electrical devices.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered6
Electrical installations
Electrical installations in residential, industrial and commercial properties for new-build and renovation projects; power and low-voltage installations, luminaire mounting indoors and outdoors, switchgear combinations, commissioning and final inspection.
Lighting
Design, planning and supply of lighting systems for indoor and outdoor areas; lighting consulting and lighting concepts for residential properties, commercial and industrial sectors.
Communication
End-to-end communication and telecommunications solutions; consultation on the right solution as well as product and service offering for availability, information exchange and comfort.
Smart home
Building automation for heating, lighting, blinds, ventilation, multimedia and security technology; planning and consultation for residential houses and commercial properties.
Grid services
Grid connections and grid work in cable and overhead line construction; connection of new housing areas, street lighting, floodlight systems and transformer substations, as well as consultation, design and service.
Household appliances
Sale, delivery, installation, maintenance and repair of household appliances; advice in the sales shop, disposal of old appliances and preparation of quotations.
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4.1/5

Walter Portenier

Trust & reputation

ranQ Trust Score of Walter Portenier: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Walter Portenier scores 73.8 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.78.624%
  • 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.65.210%
  • 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.70.08%
Walter Portenier scores 78.5 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%
Walter Portenier 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%
Walter Portenier scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Walter Portenier reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.8 out of 5 stars from 12 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 12 reviews across all connected sources

Sources
GGoogle4.812
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Bahnhofstrasse 13
3507 Biglen
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:30
Tue
08:00 - 12:00, 13:30 - 17:30
Wed
08:00 - 12:00
Thu
08:00 - 12:00, 13:30 - 17:30
Fri
08:00 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.196.689
Founded
1993 · 33 years
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.
67.0
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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