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

About the company

Brenner Treuhand provides fiduciary (treuhand), tax and audit services as well as legal and real-estate advisory. The firm focuses on medical practices and SMEs and offers bookkeeping, payroll administration, year-end accounts, tax optimisation and support for practice openings, acquisitions and succession.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered6
Fiduciary services
Fiduciary services for SMEs and doctors, including ongoing support with financial matters, bookkeeping, payroll administration and social insurance.
Tax advisory
Tax advisory for companies and private individuals, including tax returns, tax optimisation, VAT reporting, legal form comparisons, site selection and representation before authorities.
Legal advisory
Legal advisory for SMEs and private individuals, covering employment law, tenancy law, company law, continuing power of attorney, marital and inheritance law, wills, patient directives and an emergency folder.
Fiduciary services for doctors
Fiduciary advice for doctors and medical facilities, including practice set-up, practice takeover, Business plan, financing, bookkeeping and administrative support.
Medical practice placement Switzerland
Mediation and support when finding and taking over a medical practice in Switzerland, including practice selection, relocation, financing, handover models and getting started in day-to-day practice.
Audit
Audit services with an objective review and professional assessment for stakeholders as part of audit engagements.
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4.2/5

Brenner Treuhand

Trust & reputation

ranQ Trust Score of Brenner Treuhand: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Brenner Treuhand scores 77.5 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.83.324%
  • 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.63.210%
  • 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%
Brenner Treuhand scores 82.2 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%
Brenner 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%
Brenner Treuhand scores 30.7 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 35.51.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Brenner Treuhand reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 11 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle511
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

July 21, 2011Media
Beratungszentrum gut gestartet
tagblatt.ch

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Location

Gewerbestrasse 6
9242 Oberuzwil
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.703.540
Founded
1994 · 32 years
Last commercial register change
August 17, 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.
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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