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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesWinterthurPRT Revisions & Treuhand AG
PRT Revisions & Treuhand AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of PRT Revisions & Treuhand AG is the provision of trust, consulting and auditing services for companies, particularly SMEs, as well as for private individuals. This includes, among other things: accounting and payroll administration, tax consulting and planning, auditing and revision, consulting for company formation, sale and succession, financial planning and reporting, and communication with tax authorities and legal proceedings. The company thus offers a comprehensive range of services for companies and private individuals in the areas of finance, taxes and accounting.

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Products & services

Industry:Fiduciary Offices
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PRT Revisions & Treuhand AG

✓ Offered5
SME Fiduciary Services
Bookkeeping, payroll administration, VAT, annual accounts, financial planning, reporting and online bookkeeping for SMEs; on request also subsidiary ledgers for creditors and debtors.
Tax Consulting
Tax returns for individuals and legal entities, tax optimization, communication with tax authorities, appeals proceedings, tax apportionments and advice on real estate capital gains tax and restructurings.
SME Consulting
Financial consulting for businesses, company formations, business sales, amendments to articles of association, company valuations, succession solutions and financing solutions, as well as advice on social security law.
Financial Auditing
Limited reviews, audits for tax-exempt institutions and special audits, for example in cases of changes of legal form, reductions of capital as well as assessments of contributions in kind and asset transfers.
Fiduciary Services for Individuals
Tax planning and tax returns, executor services, wills, inheritance contracts, inheritances and estate planning, as well as administrative support during absences.
Trust & reputation

ranQ Trust Score of PRT Revisions & Treuhand AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

PRT Revisions & Treuhand AG scores 63.4 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.58.324%
  • 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.55.910%
  • 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.88.08%
PRT Revisions & Treuhand AG scores 93.9 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.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%
PRT Revisions & 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.
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).85.022%
PRT Revisions & 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

PRT Revisions & Treuhand AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 8 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
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle48
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gertrudstrasse 10
8400 Winterthur
Opening hours
Mon
07:30 - 11:45, 13:30 - 16:45
Tue
07:30 - 11:45, 13:30 - 16:45
Wed
07:30 - 11:45, 13:30 - 16:45
Thu
07:30 - 11:45, 13:30 - 16:45
Fri
07:30 - 11:45, 13:30 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.269.596
Founded
1999 · 27 years
Last commercial register change
September 24, 2026
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.85.03%
    • Full methodology

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