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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesSteinhausen4S Treuhand AG
4S Treuhand AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

4S Treuhand AG is a fiduciary and audit firm offering services in treuhand (accounting), auditing, tax advisory and consulting. It assists businesses with accounting, payroll administration, consolidation, tax planning, statutory audits and consulting on accounting software and financing solutions.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered12
Bookkeeping and accounting
Management of the financial, accounts receivable and accounts payable ledgers, VAT returns, monthly, quarterly and annual financial statements, budgeting, cost accounting and cost analyses.
Payroll and salary administration
Preparation of payroll statements and wage statements, as well as declarations for social security and withholding tax.
Closing advice
Advisory on the annual financial statements, review of mispostings, tax-optimal depreciation as well as provisions and accruals.
CFO and controller mandate
Assumption of duties as CFO or controller on behalf of the client, including optimisation of accounting processes for growing companies.
Company formation and start-up support
Support with the formation of companies and the administrative setup of start-up businesses after incorporation.
Management and administration of companies and foundations
Taking on board or management mandates with domicile in Switzerland, along with business-management support.
Registered office service
Company registered office in Switzerland with mail forwarding, electronic delivery via Dropbox or the cloud and, on request, dedicated telephone lines.
Limited audit
Review of annual financial statements as part of the limited audit for smaller companies and businesses with an opt-out option.
Ordinary audit
Carrying out and/or point of contact for the ordinary audit of companies.
Special audits and audits under special mandate
Special reviews for formation, reduction of share capital, merger, early distribution of assets, and confirmations regarding pay equality.
Tax advice for individuals
Tax return, tax planning and optimisation, as well as advice and representation in objections and appeals.
Tax advice for legal entities
Tax advice and company-specific solutions for legal entities.
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4.0/5

4S Treuhand AG

Trust & reputation

ranQ Trust Score of 4S Treuhand AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

4S Treuhand AG scores 61.5 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.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.78.08%
4S Treuhand 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%
4S 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%
4S 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

4S Treuhand AG reaches a ranQ Trust Score of 4.0 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

Hinterbergstrasse 18
6312 Steinhausen
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-100.574.508
Founded
1999 · 27 years
Last commercial register change
August 11, 2025
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.
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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