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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersGrenchenSWG
SWG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is the supply of energy, water and heat to the local population. The company produces and distributes electricity, heat and water and is also responsible for the networks and supply systems. It is also committed to a sustainable future and promotes the production of renewable energies in the region.

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Offering

Products & services

Industry:Energy Suppliers
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4.2/5

SWG

✓ Offered12
Electricity
Electricity supply for households, small businesses as well as commercial and industrial customers; basic supply tariff, market procurement, fixed price and structured procurement, own electricity production, solar tips, e-mobility.
Heat
Gas and heat solutions with EcoGas 15, biogas share, boiler replacement, Bern-canton biogas requirements, contracting, and combination with thermal solar systems.
Water
Drinking water supply from springs and groundwater, water quality, water analyses, UV disinfection, service area and tours of the water reservoir.
Production
Regional production of electricity, heat and biogas; solar power, wind energy, district heating networks and regional biogas upgrading.
Grid connections
Applications for grid connections for electricity, gas and water, preliminary clarifications, building permit and installation notifications, meter installation and commissioning completion reports.
Temporary connections
Time-limited electricity and water connections for construction projects and events, including construction power, temporary water connection and temporary event connections.
Inspections
Acceptance and safety inspections for natural gas, water and electricity installations; periodic inspections, random spot checks and documentation.
Supply
Regional supply of electricity, gas and water, including supply areas and infrastructure services for private transformer substations.
Metering
Smart metering for consumption with smart meters, remote reading, meter readings, data acquisition and advice on consumption of electricity, gas and water.
Online counter
Online services for downloads, moving house, reporting faults, meter readings, utility and plan information, grid connection, sponsoring and media requests.
Customer portal
Online customer center to view consumption and invoices and to handle other customer services.
Utility and plan information
Plan information about supply and utility lines for construction projects, including details on power, water, gas and control cables.
Trust & reputation

ranQ Trust Score of SWG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

SWG scores 66.8 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.57.624%
  • 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.86.510%
  • 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.70.08%
SWG scores 93.6 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.90.07%
SWG 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%
SWG scores 50.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

SWG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.1 out of 5 stars from 29 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.1
of 5

Aggregated from 29 reviews across all connected sources

Sources
GGoogle4.129
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 1, 2026Media
15 Prozent Biogas für alle: SWG vereinheitlicht ihr Gasprodukt per 1. Juli
grenchnertagblatt.ch
May 28, 2026Media
SWG ist zufrieden mit Geschäftsjahr trotz weniger Umsatz
grenchnertagblatt.ch

Knowledge

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Location

Brühlstrasse 15
2540 Grenchen
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 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Public sector institution
UID
CHE-108.954.748
Founded
1997 · 29 years
Last commercial register change
January 16, 2026
Employees
51 to 100
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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