Pierstone
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Pierstone is a niche data-focused firm with deep expertise in the digital and information economy, providing both traditional legal counselling and policy-oriented advice. The team is noted for its strength in GDPR compliance, particularly in drafting complex contractual and liability frameworks. Co-head Patrice Vanderbeeken guides clients through international transfers, DPIAs and product assessments, while co-head Alain Strowel brings expertise in digital copyright and technology law.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The Pierstone Belgium team is highly professional, client-focused and genuinely pleasant to work with — combining top-tier legal expertise with practical, solution-oriented thinking.’
- ‘Pierstone has a large experience and deep knowledge of the needs of not-for-profit associations. This streamlines the interactions on the daily operations.'
Key clients
- Strada Partners
- Toyota EU Headquarters
Work highlights
Assisted Catalina Marketing France with data protection compliance for its loyalty programmes by conducting a detailed DPIA and Legitimate Interest Assessment to identify key risks and propose mitigation measures.


