Simmons & Simmons advises national and international clients on all aspects of Belgian and EU data protection law, with notable expertise across healthcare, life sciences, TMT, and financial services. The team represents clients before the Belgian Data Protection Authority, courts, and EU tribunals. Co-head Jérémie Doornaert leads on major cross-border matters and frequently assists major industry players and start-ups, while co-head Alejandro Guerrero provides guidance on EU privacy rules from both a national and US-EU perspective.
Legal 500 Editorial commentary

Accolades

Client satisfaction: NPS ®

Testimonials

Collated independently by Legal 500 research team.

  • ‘Simmons & Simmons stands out as a practice truly rooted in EU and technology law. The team demonstrates a genuine curiosity and eagerness to learn, consistently investing resources to educate themselves about our company and the broader tech sector. This proactive approach ensures they are not only up to speed with our business but also able to anticipate our needs and industry trends.'
  • ‘Alejandro Guerrero exemplifies the strengths of Simmons & Simmons through his exceptional availability and approachability. He is consistently reachable, ensuring that our needs are addressed promptly and thoroughly. Alejandro’s deep expertise in EU and technology law, combined with his proactive communication style and willingness to adapt to our ways of working, makes him an invaluable partner.'
  • ‘The team is fantastic - true experts with deep knowledge of privacy and our industry. We also appreciate the risk-based, pragmatic approach.’
  • ‘We trust the team and their advice. Jérémie Doornaert is extremely knowledgeable about our industry and about privacy. He advises us on complex matters, but is always able to deliver advice that is clear, reasonable, and actionable. He is also a joy to work with.’

Key clients

  • Air Liquide
  • ArgenX
  • Ascensia Diabetes Care
  • Barclays
  • beMedTech
  • Black Tiger
  • BloodGPT
  • Celyad
  • Coloplast Belgium
  • Genmab
  • GlaxoSmithKline Biologicals
  • GlaxoSmithKline Pharmaceuticals

Work highlights

Representing Black Tiger in a litigation against the Belgian Data Protection Authority before the Markets Court.
Practice head

Jérémie Doornaert; Alejandro Guerrero

Other key lawyers

Alexander Wenzel; Hannelore Daems