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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryFinance & InsuranceAccountantOltenTRESO Treuhand AG
TRESO Treuhand AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

TRESO Treuhand AG provides fiduciary, audit, tax and accounting services. Its work includes financial statement advice, business succession, audits, national and international tax consulting, payroll accounting and accounting outsourcing.

AI-generated
Offering

Products & services

Industry:Accountant
✓ Offered4
Trust services
Advice on closings, inheritance law and executorships, company formation as well as purchase and sale of companies, succession arrangements.
Audits
Audit of annual financial statements, voluntary audits, special audits as well as formation and conversion audits.
Tax services
Tax advice national and international, withholding tax declarations, VAT advice and VAT declarations, VAT representation and fiscal representation.
Accounting services
Personnel administration and payroll accounting, outsourcing of accounting, advice on preparing the financial statements, online bookkeeping with AbaWeb.
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4.1/5

TRESO Treuhand AG

Trust & reputation

ranQ Trust Score of TRESO Treuhand AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

TRESO Treuhand 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.
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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%
TRESO Treuhand 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%
TRESO Treuhand AG scores 85.0 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).85.022%
TRESO Treuhand AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

TRESO Treuhand 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 54%, 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.

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Location

Dornacherstrasse 27
4600 Olten

At a glance

Legal form
Corporation
UID
CHE-106.728.075
Founded
1990 · 36 years
Last commercial register change
January 26, 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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