
WilmerHale continues to represent clients in high-profile cases, including proceedings before the Court of Justice of the European Union, the European Data Protection Board, and national authorities, while providing guidance on the EU Data Act and NIS2 Directive. Martin Braun leads the practice and focuses on international data transfers, social networks, and outsourcing projects. He is supported by Hans-Georg Kamann, who is an expert on European regulation, including EU data protection law; and Vanessa Wettner, who handles complex data protection-related litigation mandates.
Legal 500 Editorial commentary
Key clients
- Meta Platforms Ireland Limited
- WhatsApp Ireland Limited
Work highlights
Advising Meta Platforms Ireland Limited on data protection and European law aspects in proceedings before the German Federal Cartel Office and in the CJEU case C-252/21 concerning the merging of user data.
Representing Meta Platforms Ireland Limited in two preliminary ruling proceedings before the CJEU in the “AppCenter” case (C-757/22 and C-319/20), as well before the German Federal Court of Justice (BGH).
Represented Meta Platforms Ireland Limited in a number of actions for annulment against decisions of the European Data Protection Board.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Martin Braun
Other key lawyers
Hans-Georg Kamann; Vanessa Wettner
