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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryFinance & InsuranceAccountantZurichSIDENIA TRUSTEES AG
SIDENIA TRUSTEES AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company aims to take over and carry out all activities directly or indirectly falling within the scope of a trust company. Furthermore, it aims to act as a trustee in accordance with the FINIG. The company may establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business directly or indirectly related to its purpose. It is authorized to acquire, hold, manage, encumber, utilize and dispose of real estate and intellectual property rights in Switzerland and abroad. The company may engage in all commercial, financial and other activities (including providing guarantees and sureties for affiliated companies and third parties) that appear to promote the purpose of the company or are related to it.

Commercial register, canton of ZH·As of October 23, 2026View on Zefix
Presence

Service area

Offering

Products & services

Industry:Accountant
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3.8/5

SIDENIA TRUSTEES AG

✓ Offered4
Trustee, Protector and Board-of-Directors Services
Trustee, Protector and Board-of-Directors services for complex trust structures, protection and control needs, as well as mandates for companies in Switzerland and abroad.
Administration of trusts, companies and foundations
Administration of trusts, companies and foundations, including the establishment and formation, coordination of family assets, as well as compliance and governance.
Family Advisory
Family Advisory for succession planning, structuring of assets, organising and conducting board meetings, as well as ongoing advisory services with specialised partners.
Analysis and structural organisation
Analysis and structural organisation with consideration of tax, accounting, regulatory and legal aspects, including trust and company health checks and organisational development.
Trust & reputation

ranQ Trust Score of SIDENIA TRUSTEES AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of November 2026

SIDENIA TRUSTEES AG scores 56.6 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.70.824%
  • 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.27.910%
  • 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.50.08%
SIDENIA TRUSTEES AG scores 74.8 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.75.012%
  • 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%
SIDENIA TRUSTEES 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%
SIDENIA TRUSTEES AG scores 8.3 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 35.8.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SIDENIA TRUSTEES AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Secure profile

Location

Dufourstrasse 42
8008 Zurich

At a glance

Legal form
Corporation
UID
CHE-488.289.327
Founded
2019 · 7 years
Last commercial register change
October 23, 2026
Employees
1 to 10

Active in 1 of 26 cantons

  • ZHZurich
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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