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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceWholesale - Machinery & Technical EquipmentWauwilISELI ENERGIE AG
ISELI ENERGIE AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Iseli Energie AG is the development, distribution and installation of system solutions in the field of renewable energies, particularly in the areas of: wood heating systems (chip heating, pellet heating, log wood heating), heat pumps (air heat pump, groundwater heat pump, geothermal heat pump, domestic hot water heat pump), solar systems (solar collectors), district heating (district heating pipelines) and building automation and energy optimization. The company also offers consulting, customer service and advisory services to support customers in selecting and implementing sustainable energy concepts.

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Offering

Products & services

Industry:Wholesale - Machinery & Technical Equipment
✓ Offered
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4.4/5

ISELI ENERGIE AG

9
Solar thermal systems
Thermal solar systems for domestic hot water and heating support; consultation, analysis, tailor-made planning, installation, commissioning and support with subsidies.
Heat pumps
Heat pumps for air, earth, groundwater and domestic hot water; consultation, planning and implementation of heating solutions for different buildings and requirements.
Wood heating systems
Wood heating systems with chip, pellet, split-wood and biomass units; solutions for single-family homes up to industrial plants, including heating systems from Herz and Binder.
District heating pipes
Flexible pre-insulated district heating pipes for heating networks; systems with high energy efficiency, temperature resistance and rapid connection options at the heat consumer.
Energy optimization
Energy optimization for heating, control and smart-home integration; networked systems to reduce energy consumption and costs.
Heating service
Heating service for heating systems, including maintenance, care and operational support; complemented by a 24-hour emergency helpline.
24/7 Emergency Hotline
24/7 emergency hotline for contact on 365 days a year; phone availability for concerns related to systems and operation.
Subsidy calculator
Subsidy calculator to help you get oriented regarding funding contributions and financial support for energy projects and systems.
Guide
Guide with information, answers to frequently asked questions and practical tips on products and services related to renewable energies.
Trust & reputation

ranQ Trust Score of ISELI ENERGIE AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

ISELI ENERGIE AG scores 77.5 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.81.124%
  • 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.74.910%
  • 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%
ISELI ENERGIE AG scores 92.3 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.82.07%
ISELI ENERGIE AG scores 83.3 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).83.322%
ISELI ENERGIE AG scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ISELI ENERGIE AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 18 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 18 reviews across all connected sources

Sources
GGoogle4.818
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Kreuzmatt 8
6242 Wauwil
Opening hours
Mon
07:30 - 11:45, 13:30 - 17:00
Tue
07:30 - 11:45, 13:30 - 17:00
Wed
07:30 - 11:45, 13:30 - 17:00
Thu
07:30 - 11:45, 13:30 - 17:00
Fri
07:30 - 11:45, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.001.386
Founded
2006 · 20 years
Last commercial register change
December 16, 2024
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.
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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