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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersRomanshornGenossenschaft EW Romanshorn
Genossenschaft EW Romanshorn Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of EWR is the supply of electricity and water to private individuals, properties and municipalities. This includes the provision of electricity products, electricity tariffs, photovoltaic solutions, regional water, water tariffs, water quality control and supply. In addition, the company offers services such as fibre-optic and dark fibre connections, maintenance of transformer stations, public lighting and ARA fees.

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Offering

Products & services

Industry:Energy Suppliers
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Genossenschaft EW Romanshorn

Solar & Photovoltaics
✓ Offered12
Electricity supply
Electricity supply in basic supply with electricity products, electricity tariffs, grid usage, metering charges and levies; plus replacement supply for customers with open grid access.
Water supply
Potable water supply from Lake Constance with treatment at the seawater plant, filtration, disinfection and injection into the distribution network; including water tariffs and water quality.
Photovoltaics
Photovoltaics in the electricity sector, including information on solar power and on becoming a power producer with a self-consumption solution.
Energy communities
EVG «Mein Strom», ZEV and LEG for the shared use of locally generated solar power within properties or energy communities.
Fibre optics / dark fibre
Fibre-optic and dark fibre services for businesses, for connecting sites and communications infrastructure.
Maintenance of transformer substations
Maintenance of transformer substations for companies as a technical service in the field of electrical infrastructure.
Public lighting
Operation and maintenance of public lighting for municipalities.
ARA charges
Billing of ARA charges for municipalities.
Customer portal
Customer portal for managing master data, viewing invoices, switching products, reporting a move and other customer matters.
Power connection and installation
Information and handling for power connections and installation.
Water connections and installation
Information and handling for water connections and installation.
Smart meter rollout
Conversion of conventional electricity meters to smart, digital electricity meters.
Trust & reputation

ranQ Trust Score of Genossenschaft EW Romanshorn: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

Genossenschaft EW Romanshorn has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Genossenschaft EW Romanshorn scores 91.6 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%
Genossenschaft EW Romanshorn 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%
Genossenschaft EW Romanshorn scores 39.5 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 35.25.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.53.34%
Qualifications+0.00

Genossenschaft EW Romanshorn reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, 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.

Press

Media

June 30, 2026Media
EW Region Romanshorn investiert in Netzstabilität und neue Projekte
thurgauerzeitung.ch
June 17, 2025Media
Genossenschaft EW Romanshorn macht über 800'000 Franken Gewinn
thurgauerzeitung.ch
March 17, 2025Media
Ein Jahr nach der Millioneninvestition gegen die Quaggamuschel: EW Romanshorn ist auf Kurs
thurgauerzeitung.ch
May 30, 2022Media
Egnach erhält vom EW Romanshorn einen Brunnen
thurgauerzeitung.ch

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Location

Bankstrasse 6
8590 Romanshorn

At a glance

Legal form
Cooperative
UID
CHE-110.050.738
Founded
2003 · 23 years
Last commercial register change
September 30, 2025
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.
97.0
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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