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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesZofingenStWZ Energie AG
StWZ Energie AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

StWZ Energie AG is an energy services provider offering electricity, gas, heat and water services along with associated products and tariffs. The company also provides building-technology services (electrical installations, heating, sanitary, solar systems, storage, charging solutions) and operates telecommunications services via Quickline.

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StWZ Energie AG

Offering

Products & services

Industry:Holding Companies
✓ Offered7
Electricity supply
Cable and line construction and building connections, maintenance of the electricity grid and installations, renewable electricity products and electricity procurement, public lighting, electrical installations, 24-hour standby service.
Natural gas and biogas supply
Natural gas and biogas for heating, hot water, cooking, industrial processes and mobility; with products such as ERDGAS, BIO 30 and BIO 100 as well as price calculators and installation checks.
Water supply
24/7 delivery of drinking water, terms and conditions, water quality, water source, installation checks and water saving.
Building services and installations
Electrical installations, building automation, lighting, heating installations, sanitary installations, solar systems, storage and charging solutions.
Energy efficiency and energy consulting
Energy efficiency for businesses as well as energy consulting for private customers to reduce consumption and energy costs.
Quickline subscriptions and fibre connection
Internet, TV, landline and mobile subscriptions from Quickline as well as fibre connection, installation and commissioning.
24h standby (on-call) service
24-hour emergency service for electricity as well as natural gas and water outside opening hours.
Trust & reputation

ranQ Trust Score of StWZ Energie AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

StWZ Energie AG scores 72.7 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.61.224%
  • 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.88.110%
  • 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.88.08%
StWZ Energie AG scores 89.3 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.70.07%
StWZ Energie 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%
StWZ Energie AG scores 56.9 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 35.97.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.16.74%
Qualifications+0.00

StWZ Energie AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.2 out of 5 stars from 31 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 31 reviews across all connected sources

Sources
GGoogle4.231
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 1, 2026Media
Trotz tieferem Umsatz: StWZ steigert den Gewinn deutlich
zofingertagblatt.ch
May 5, 2026Media
Das sagt der Verwaltungsratspräsident zur Fusion von StWZ und sbo
zofingertagblatt.ch
February 23, 2026Media
Rigi- und Vreneliweg stehen vor umfassender Sanierung
nau.ch
September 4, 2025Media
Schnelle Schritte für ein Glasfasernetz in Zofingen
aarauer-nachrichten.ch
August 16, 2025Media
Das halten die Einwohnerratsfraktionen von der geplanten Fusion der Energiewerke Olten und Zofingen
zofingertagblatt.ch
June 24, 2025Media
Einwohnerrat gibt grünes Licht: Die Gassen in der Altstadt können saniert werden
zofingertagblatt.ch
January 19, 2025Media
Solarstrom: So vergüten die EWs von Aarburg, Oftringen und Rothrist
zofingertagblatt.ch
December 8, 2023Media
Vorweihnachtlicher Lichterweg
aarauer-nachrichten.ch

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Location

Mühlegasse 7
4800 Zofingen
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.339.741
Founded
2001 · 25 years
Last commercial register change
April 22, 2025
Employees
11 to 20
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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