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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersNussbaumen AgFernwärme Siggenthal AG
Fernwärme Siggenthal AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the production and distribution of district heating, particularly through the use of waste heat from waste incineration and other environmentally friendly sources, as well as the provision of related services such as consulting, operation and maintenance.

AI-generated
Offering

Products & services

Industry:Energy Suppliers
✓ Offered5
District heating connection
District heating connections for properties in Turgi, Obersiggenthal, Untersiggenthal and Gebenstorf; connection costs, service connection, building station and heat transfer station.
District heating supply
Heat supply via the district heating network with an annual base price and an energy price; standard and integral connections, heat supply via calibrated heat meters.
Service and maintenance
Inspections, maintenance, fault rectification and service work on district heating and building stations; replacement of defective system components and clarification of necessary renovations.
Advice on district heating connection
Advice on heat supply for homes or commercial premises, including prices, technology and individual connection options; free and non-binding information.
Funding program for district heating connections
Funding contributions for district heating connections when replacing oil, gas or electric heating systems; information on cantonal subsidies, additional funding and a grant calculator.
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4.1/5

Fernwärme Siggenthal AG

Trust & reputation

ranQ Trust Score of Fernwärme Siggenthal AG: 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.

Fernwärme Siggenthal AG 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%
Fernwärme Siggenthal 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%
Fernwärme Siggenthal AG 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%
Fernwärme Siggenthal AG scores 11.5 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 35.22.94%
  • 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

Fernwärme Siggenthal AG 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
Rekordjahr für die Fernwärme Siggenthal: Erstmals über 80'000 MWh
badenertagblatt.ch
April 2, 2026Media
Fernwärme Siggenthal: Reto Wermelinger übernimmt
badenertagblatt.ch

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Location

Gässliackerstrasse 6
5415 Nussbaumen Ag

At a glance

Legal form
Corporation
UID
CHE-104.287.781
Founded
1995 · 31 years
Last commercial register change
May 5, 2026
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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