Fieldfisher offers advisory on technology and data law, covering artificial intelligence, cybersecurity, data breaches, and guidance on emerging regulatory requirements such as the NIS2 Directive and DORA. Felix Wittern and Stephan Zimprich co-lead the practice, with Wittern acting as Data Protection Officer for a large number of companies in Germany and at EU level, and Zimprich focusing on advising technology providers and online platforms on international data transfers, user preferences, and online data usage. Simon Assion joined the firm from Bird & Bird LLP in June 2025.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Billing & efficiency
Testimonials
Collated independently by Legal 500 research team.
- 'Excellent knowledge in all legal aspects regarding Data Law and Data Protection Law.'
- ‘Stephan Zimprich is an absolute pleasure to work with and has a brilliant grasp of the intersection of Legal, Tech and Business. With his open but solution-driven approach he is perfect at solving even the most complex problems. His extensive network helps to solve even the most difficult negotiation situations and as an expert and senior spokesperson he is absolutely accepted and cherished in the German market.'
- 'Very accurate and flexible style of working. Always service-oriented.'
Key clients
- Allgemeiner Deutscher Automobil-Club (ADAC)
- Docusign
- Expedia
- Houzz
- Levi's
Work highlights
Advised Allgemeiner Deutscher Automobil-Club with a digital marketing project, now including work on a medical app, CDP, SSO, and data protection.
Advising BCR in relation to data protection on products and marketing.
Advised all Expedia companies operating in Germany (Expedia, Hotels.com, HomeAway, fewo-direkt, CarRentals, ebookers) as their Data Protection Officers.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Felix Wittern; Stephan Zimprich
Other key lawyers
Simon Assion; Thorsten Ihler; Philipp Plog; Oliver Süme