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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryRetail & CommerceCommodity traderAppenzellkoller brennstoffe ag
koller brennstoffe ag Logo
Verified· 4 sourcesTrust Score
Summary

About the company

koller brennstoffe ag trades in heating and transport fuels, including heating oil, diesel, wood pellets, wood briquettes and charcoal. It also provides mobile pellet silos for temporary or flexible pellet storage and supply.

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Offering

Products & services

Industry:Commodity trader
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4.1/5

koller brennstoffe ag

6
Heating oil
Heating oils for heat supply, including eco heating oil 50 ppm and winter eco heating oil 10 ppm for use in heating systems and tanks.
Diesel fuels
Diesel fuel for use as heating and motor fuel, including Diesel 10 ppm and Ecospeed diesel with a maximum 10 ppm sulphur content.
Wood pellets
Regional wood pellets in bulk or in bags, delivered to your home or for collection at Rütistrasse 14.
Wood briquettes
Wood briquettes made from untreated waste wood for Swedish stoves, fireplaces, wood heating systems, pizza ovens and the grill, as Big Bag or by order.
Mobile pellet silos
Mobile pellet silos with a filling volume of 4.5 to 12 tonnes as a temporary solution, for temporary heating or when storage space is missing.
Charcoal
Charcoal for grilling, produced in Switzerland from regional wood and picked up in smaller quantities or delivered by the pallet.
Trust & reputation

ranQ Trust Score of koller brennstoffe ag: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of November 2026

koller brennstoffe ag scores 69.5 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.76.724%
  • 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.45.610%
  • 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.78.08%
koller brennstoffe ag scores 85.5 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.55.07%
koller brennstoffe ag scores 88.3 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).88.322%
koller brennstoffe ag scores 17.2 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 35.14.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

koller brennstoffe ag reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 5, 2026Media
Angst vor Engpass treibt Heizöl-Nachfrage im Appenzellerland in die Höhe
appenzellerzeitung.ch
September 29, 2024Media
Koller Brennstoffe AG liefert Holzpellets mit viel Schwung!
gossau24.ch

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Location

Eggerstandenstrasse 9
9050 Appenzell

At a glance

Legal form
Corporation
UID
CHE-113.825.766
Founded
2007 · 19 years
Last commercial register change
July 14, 2022
Employees
1 to 10

Active in 1 of 26 cantons

  • AIAppenzell Inner Rhodes
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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