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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesBaselTrusso TopCo Holding AG
Trusso TopCo Holding AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Trusso TopCo Holding AG is a Swiss fiduciary and advisory group for SMEs. The company provides services in trust administration, tax, auditing, international mandates, management consulting, and digital and IT-based solutions.

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Products & services

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3.8/5

Trusso TopCo Holding AG

Fiduciary Offices
Financial Services
Holding Companies
✓ Offered6
Fiduciary Services
Fiduciary services with accounting, payroll administration and payroll processing; organised efficiently and supported by tax, finance, legal and IT specialists.
Tax Advisory
Tax advisory for companies, private clients and expats; tax returns, corporate taxes, VAT, international tax law and special taxes.
Auditing
Auditing with statutory and limited audits, internal audit, special audits, IT audit, expert opinions, valuations and financial reporting.
Management Consulting
Management consulting for strategy, reporting, controlling, financing, valuations, succession, formations, restructuring and interim management.
International Services
International services with cross-border audit, tax advisory, payroll administration and domiciliation for internationally active companies.
Digital, IT and AI Services
Digital back-office, cloud, cybersecurity, AI and data analytics services; including Abacus, Microsoft 365, IT consulting, business software and workplace solutions.
Trust & reputation

ranQ Trust Score of Trusso TopCo Holding AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of October 2026

Trusso TopCo Holding 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%
Trusso TopCo Holding AG scores 53.4 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Trusso TopCo Holding AG 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%
Trusso TopCo Holding AG scores 68.6 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 35.68.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Trusso TopCo Holding AG reaches a ranQ Trust Score of 3.8 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 October 2026.

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

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Location

Aeschenplatz 4
4052 Basel

At a glance

Legal form
Corporation
UID
CHE-277.964.827
Founded
2025 · 1 year
Last commercial register change
August 7, 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.
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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