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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesLaw Firms & Notary OfficesBaselBriner Tax Advisory AG
Briner Tax Advisory AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Briner Tax Advisory AG provides tax advisory services for companies and their owners, with a focus on corporate taxation, cross-border tax matters, restructurings, employee participation plans and transactions. Its services also cover real estate taxation, financings, succession, tax rulings, and appeals and proceedings.

AI-generated
Offering

Products & services

Industry:Law Firms & Notary Offices
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3.7/5

Briner Tax Advisory AG

Management Consulting
Fiduciary Offices
✓ Offered5
Tax Advisory
Tax advisory for companies and owners covering restructurings, employee participation plans, financings, cross-border tax questions, tax rulings, succession, real estate capital gains tax and appeals.
Strategy Package
Annual tax strategy advisory with kick-off, portal setup, year-end analysis, quarterly calls, strategy updates, year-end meeting and ad hoc advice.
Compliance Package
Annual tax compliance support with tax representation, returns, provision review, closing reconciliation, deadline monitoring, updates and portal access.
Entrepreneur Package
Holistic tax strategy for entrepreneurs with shareholdings, annual review, structure and investment analysis, crypto transactions, international tax questions, portal access and succession planning.
Client Portal & Data Security
Secure client portal with document storage, communication, deadline tracking, 2FA, Swiss hosting, end-to-end encryption and audit-proof archiving.
Trust & reputation

ranQ Trust Score of Briner Tax Advisory AG: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

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Data basis 54% · As of October 2026

Briner Tax Advisory 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%
Briner Tax Advisory 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%
Briner Tax Advisory 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%
Briner Tax Advisory AG scores 13.4 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 35.13.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Briner Tax Advisory AG reaches a ranQ Trust Score of 3.7 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

Barfüsserplatz 3
4051 Basel

At a glance

Legal form
Corporation
UID
CHE-407.289.111
Founded
2025 · 1 year
Last commercial register change
August 21, 2025
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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