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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesAdministrative ServicesWinterthurGantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur
Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur provides fiduciary and financial services. The website mentions advisory work on corporate structures, executive functions, bookkeeping, annual financial statements, tax returns, portfolio analysis, and legal support through partners.

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Products & services

Industry:Administrative ServicesFiduciary OfficesProperty Management
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Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur

✓ Offered4
Fiduciary Services
Fiduciary services for company formation and structuring, corporate organ functions, legal and compliance duties, plus administrative support with bookkeeping, annual accounts and tax returns.
Family Office Services
Tailored serviced offerings for family offices with personal support and assistance in administrative and organisational tasks.
Portfolio Analysis and Second Opinion
Independent portfolio analyses with situational review, health check and in-depth monitoring as a second opinion for portfolios.
Legal Advisory
Legal advisory through partner BWB LEGAL for legal questions related to the group’s services.
Trust & reputation

ranQ Trust Score of Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur: 3.5 out of 5.0

Trust Score3.5/ 5.0

Solid

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Data basis 54% · As of October 2026

Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur 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%
Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur scores 36.9 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.0.012%
  • 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%
Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur scores 83.3 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).83.322%
Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur scores 57.1 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 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gantenstein Services AG, Vaduz (LI), Zweigniederlassung Winterthur reaches a ranQ Trust Score of 3.5 out of 5.0 — rated «Solid». 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 October 2026.

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

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Location

Theaterstrasse 17
8400 Winterthur

At a glance

Legal form
Foreign branch
UID
CHE-261.633.193
Founded
2026 · 0 years
Last commercial register change
April 17, 2026
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.73.06%
  • 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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