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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesWinterthurBreitenmoser Treuhand GmbH
Breitenmoser Treuhand GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Breitenmoser Treuhand GmbH provides fiduciary and advisory services to businesses and private clients. Services include accounting, payroll administration and outsourcing, as well as tax returns, tax consulting, corporate law and financial planning.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered8
Accounting
Managing and monitoring bookkeeping, accounts payable and accounts receivable, annual and interim financial statements, setting up the accounting, VAT returns, budgeting and annual planning.
Taxes
Tax returns regardless of the canton, comprehensive consulting on tax matters, tax advice for company formations and reorganisations, tax planning, VAT support, analyses and optimisation proposals.
Tax return
Review of tax documents, preparing the tax return electronically or manually, checking the tax assessment, calculating the taxes.
Personnel administration
Setting up payroll accounting, comprehensive management of salaries, annual wage reporting to social insurance, payroll administration, wage certificates, salary payments and payroll statements.
Outsourcing
Outsourcing of the entire accounting, bookkeeping including accounts payable and accounts receivable, VAT returns, personnel administration and salaries, management mandates and controlling.
Company law
Advisory services for company formations, preparing formation deeds, articles of association and contracts, preparing documents for the commercial register, advice for liquidations and restructurings, risk assessments and analyses.
Tax advisory
Personal advice on tax matters, inheritance tax advice, owner-occupied housing and real estate, inter-cantonal and international tax matters, representation before tax authorities, objections and appeals.
Financial planning
Valuation of investments and mortgages, action plan for wealth building, tax optimisations, analysis of owner-occupied property, management of funds from inheritances and gifts.
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4.1/5

Breitenmoser Treuhand GmbH

Trust & reputation

ranQ Trust Score of Breitenmoser Treuhand GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Breitenmoser Treuhand GmbH 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%
Breitenmoser Treuhand GmbH scores 75.9 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.89.612%
  • 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%
Breitenmoser Treuhand GmbH 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%
Breitenmoser Treuhand GmbH scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Breitenmoser Treuhand GmbH 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 October 2026.

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

Knowledge

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Location

Archplatz 2
8400 Winterthur
Opening hours
Mon
08:30 - 12:00, 13:30 - 17:30
Tue
08:30 - 12:00, 13:30 - 17:30
Wed
08:30 - 12:00, 13:30 - 17:30
Thu
08:30 - 12:00, 13:30 - 17:30
Fri
08:30 - 12:00, 13:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-496.166.566
Founded
2015 · 11 years
Last commercial register change
June 8, 2022
Employees
1 to 10
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.
76.0
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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