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

About the company

Dudler & Partner AG provides fiduciary and tax advisory services for private clients and companies. Offerings include preparation of tax returns, tax planning and representation in tax appeals, accounting and payroll, corporate advisory and succession planning, as well as inheritance-related services.

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Products & services

Industry:Fiduciary Offices
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Dudler & Partner AG

✓ Offered
7
Tax returns
Preparation of tax returns for individuals and companies, including tax calculation, refunds, lump-sum tax imputation, requests for withholding tax and inter-cantonal tax allocations.
Tax advice
Tax planning, advice on inheritance and gift taxes, real estate taxes, company formations and business restructurings, as well as succession planning.
Accounting
Ongoing periodic maintenance of the accounts, accounts receivable management, annual financial statements, year-end reporting, payroll accounting, payroll runs, social security contribution statements and salary certificates.
Business consulting
Advisory services for company formation and restructuring, business valuations, purchase and sale of companies, succession planning, domicile and holding companies, and board mandates.
Inheritance law
Succession planning, wills, inheritance and marriage agreements, estate partitions, as well as mandates as executor of the will.
Tax appeals
Objections, appeals and complaints in tax appeal proceedings, including representation before tax authorities and review of assessments.
Special tax assignments
Negotiation of expense regulations and lump-sum taxation, support during tax audits and obtaining rulings with tax authorities.
Trust & reputation

ranQ Trust Score of Dudler & Partner AG: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Dudler & Partner AG scores 56.5 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.68.224%
  • 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.17.610%
  • 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.70.08%
Dudler & Partner AG scores 53.4 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.25.012%
  • 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%
Dudler & Partner 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%
Dudler & Partner AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dudler & Partner AG reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hier entsteht die Karte
Riesbachstrasse 57
8008 Zurich

At a glance

Legal form
Corporation
UID
CHE-107.411.304
Founded
2025 · 1 year
Last commercial register change
December 15, 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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