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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryFinance & InsuranceAccountantGrenchenEsther Siegfried Treuhand
Esther Siegfried Treuhand Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Siegfried Treuhand is the provision of services in the areas of finance, estate and taxes. The company offers personal consulting and support in these areas, particularly through its owner Esther Siegfried-Stierli.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Accountant
✓ Offered6
Trust advisory
Advisory and support in difficult situations, in particular with accompanying or guardianship mandates, inheritance arrangements, death-related arrangements, and financial matters.
Tax returns
Preparation and support for tax returns for private individuals within the scope of trust services.
Inheritance arrangements
Support with inheritance arrangements, including organisational assistance in relation to assets and estate matters.
Death-related arrangements
Support with death-related arrangements, including organisational handling and assistance in the situation concerned.
House clear-outs and house sales
Organisation of house clear-outs and support with house sales in the context of inheritance and death situations.
Organisation and conduct of funerals
Organisation and conduct of dignified funerals for deceased persons with no relatives at all.
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3.8/5

Esther Siegfried Treuhand

Trust & reputation

ranQ Trust Score of Esther Siegfried Treuhand: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of November 2026

Esther Siegfried Treuhand scores 52.2 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.65.024%
  • 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.35.310%
  • 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.35.08%
Esther Siegfried Treuhand scores 76.4 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.95.212%
  • 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%
Esther Siegfried Treuhand 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%
Esther Siegfried Treuhand scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Esther Siegfried Treuhand reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle4.33
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sonnenrainstrasse 6
2540 Grenchen

At a glance

Legal form
Sole proprietorship
UID
CHE-166.432.678
Founded
2013 · 13 years
Last commercial register change
April 19, 2018
Employees
1 to 10

Active in 1 of 26 cantons

  • SOSolothurn
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.
67.0
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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