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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesGenevaWINSTON BAYA SA
WINSTON BAYA SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Winston Baya (formerly ACCs SA) provides fiduciary services, particularly in the areas of: company formation, restructuring and sale; tax planning and consulting for companies and individuals; accounting and financial management; labor law and personnel administration; asset management and planning; international tax planning and consulting; and the establishment and administration of trusts and holdings. The company's core activity is the provision of fiduciary services, specifically supporting companies and individuals in the formation, management and planning of their financial and tax affairs.

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Products & services

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WINSTON BAYA SA

✓ Offered8
Tax advisory
Tax advisory for individuals and companies, including tax returns, VAT, withholding tax, tax compliance and tax planning.
Bookkeeping
Ongoing bookkeeping for audit and management, including annual financial statements, monthly and quarterly closings, processing of accounts receivable and accounts payable, consolidation and cash-flow management.
Payroll and HR administration
Payroll processing, employment contracts, onboarding and offboarding administration, social security, withholding tax, vacation tracking, employment certificates and internal HR regulations.
Legal advice
Legal advice and support for company formation, restructuring, acquisition of businesses, contract law, employment law, inheritances and negotiations with authorities.
Outsourced CFO and financial management
Outsourced financial leadership with management reporting, budget control, cash-flow monitoring, financing solutions, profitability analysis and participation in general meetings.
Company formation, restructuring and M&A advisory
Advisory on selecting the legal form, formation, registration with the commercial register, conversions, business valuation, financing projects as well as mergers and acquisitions.
Wealth and succession planning
Tax and succession planning for entrepreneurs and companies, inheritance declarations, CRS reporting and structuring of holding companies and trusts.
Trust services
Establishment and administration of trusts, structuring of assets, selection of jurisdictions, appointment of trustee and protector roles, and support with tax and succession matters.
Trust & reputation

ranQ Trust Score of WINSTON BAYA SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

WINSTON BAYA SA 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%
WINSTON BAYA SA scores 74.8 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.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%
WINSTON BAYA SA 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%
WINSTON BAYA SA scores 42.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.42.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

WINSTON BAYA SA 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 October 2026.

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

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Location

Hier entsteht die Karte
Rue Pierre-Fatio 15
1204 Geneva

At a glance

Legal form
Corporation
UID
CHE-290.537.350
Founded
2019 · 7 years
Last commercial register change
June 5, 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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