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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryFinance & InsuranceAsset managerBaselGunzenhauser & Partner AG
Gunzenhauser & Partner AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Gunzenhauser & Partner AG is the provision of services in the area of Family Office, specifically: Private secretariat, Financial and tax planning, Estate planning, Estate administration, and Foundation management. The company thus offers comprehensive consulting and management services for private individuals and families, particularly in the areas of wealth management, tax planning, and estate regulation.

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Products & services

Industry:Asset manager
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Gunzenhauser & Partner AG

Accountant
✓ Offered5
Private secretariat
Private secretariat for phone calls, clerical work and liaison with authorities, banks and insurers; on request also bookkeeping and tax return.
Financial and tax planning
Private financial planning and individual tax advice with consultation on finances, pension provision and taxes, as well as a joint concept for all financial aspects.
Estate planning
Estate planning for the legally unambiguous arrangement of inheritance matters, in particular in complex family circumstances or where there are no heirs; with forward-looking planning of the division of the estate.
Estate execution
Estate execution for the respectful implementation of the last will, relieving the heirs of administrative tasks and providing advice on legal and tax-related matters.
Foundations management
Support for the establishment of foundations and subsequent administration of foundations, so that management and implementation of the founder’s will take place in line with their intent.
Trust & reputation

ranQ Trust Score of Gunzenhauser & Partner AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Gunzenhauser & Partner AG 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%
Gunzenhauser & Partner AG scores 84.6 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.97.712%
  • 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%
Gunzenhauser & Partner AG 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%
Gunzenhauser & Partner AG scores 8.9 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 35.8.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gunzenhauser & Partner AG 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 November 2026.

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

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Location

Aeschenvorstadt 21
4051 Basel
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-327.516.746
Founded
2012 · 14 years
Last commercial register change
October 22, 2026
Employees
1 to 10

Active in 1 of 26 cantons

  • BSBasel-City
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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