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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIndustryEnergy IndustryZurichElektrizitätswerk der Stadt Zürich
Elektrizitätswerk der Stadt Zürich Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of ewz lies in energy production and supply, as well as in the development of solutions for energy and communication. The company is also committed to a sustainable energy future and supports projects that protect and promote the environment.

AI-generated
Offering

Products & services

Industry:Energy Industry
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4.1/5

Elektrizitätswerk der Stadt Zürich

✓ Offered
7
Electricity
Power products and grid services for residential and business customers, including electricity supply, electricity procurement and grid services.
Solar energy
Solar installations and integrated solar solutions for private and commercial customers, including self-consumption solutions and sale of solar power.
E-mobility
Charging solutions for electric vehicles, including fast-charging stations and smart charging infrastructure for residential and business customers.
Fibre-optic connection
Fibre-optic connections for private and business customers, to be connected to the fibre-optic network.
Connectivity
Data lines and network solutions for businesses, focusing on speed, stability and security.
Energy efficiency and operational optimisation
Energy management, monitoring and optimisation of building services, including identification and implementation of energy-saving measures.
Customer services
Customer service for invoicing, moving notifications and fault reporting.
Trust & reputation

ranQ Trust Score of Elektrizitätswerk der Stadt Zürich: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Elektrizitätswerk der Stadt Zürich scores 49.8 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.27.224%
  • 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.73.510%
  • 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%
Elektrizitätswerk der Stadt Zürich scores 96.1 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.100.07%
Elektrizitätswerk der Stadt Zürich scores 86.7 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).86.722%
Elektrizitätswerk der Stadt Zürich scores 81.7 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.63.34%
Qualifications+0.00

Elektrizitätswerk der Stadt Zürich reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.1 out of 5 stars from 17 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.1
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle3.117
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 27, 2026Media
Stadt vergibt EWZ-Unterwerk an junges Kunstkollektiv – und verzichtet auf Miete
tsri.ch
July 16, 2026Media
Employer Branding: ewz macht Kraftwerk Letten zur Werbefläche
kleinreport.ch
July 9, 2026Media
Zürich investiert 11 Millionen in Bündner Stromnetz – für die Energie der Zukunft
tagesanzeiger.ch
June 30, 2026Media
Stromausfall in Zürich: Kreis 10 und Oerlikon im Dunkeln
blick.ch
June 30, 2026Media
Stromausfall legt Teile der Stadt lahm
zuerich24.ch
June 30, 2026Media
Elektrizitätswerk der Stadt Zürich muss Gewinn nicht teilen
nau.ch
May 19, 2026Media
Zürcher Stromkonzern soll 80 Millionen Franken des Gewinns an Bevölkerung abgeben
limmattalerzeitung.ch
March 27, 2026Media
ewz erzielt 2025 einen Umsatz von 1,44 Milliarden Franken
punkt4.info
January 21, 2026Media
Parlament Zürich lehnt EWZ-Bonus ab
swissinfo.ch

Knowledge

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Location

Tramstrasse 35
8050 Zurich
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Public sector institution
UID
CHE-108.954.978
Founded
2008 · 18 years
Last commercial register change
November 23, 2020
Employees
More than 500
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.97.06%
  • 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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