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Philipp Westerhoff

Philipp Westerhoff is a senior associate at Hausfeld in Berlin. He advises clients on EU and German competition law and antitrust litigation.

Before joining Hausfeld he worked for the media, telecommunications and competition law departments in leading international law firms in Berlin. Prior to his admission to the Bar, Philipp clerked at the Division for Competition Policy of the German Federal Ministry for Economic Affairs as well as at the Chambers for Unfair Competition, Trademarks and IP, and Antitrust of the Regional Court of Berlin.

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Practice Areas


LL.B. / 1st State Exam, Berlin

Bar Exam / 2nd State Exam, Berlin

LL.M., King’s College London 

Maîtrise en droit, University of Paris 2 Panthéon-Assas

Bar Admissions

Rechtsanwalt, Germany


Author, “The German Amazon Marketplace Agreement Case: A Landmark Settlement with Global Reach or More Hype Than Substance?”, Hausfeld Bulletin 4/2019

Co-author, “Abrupt End to “Hipster Antitrust”? Tackling Facebook’s Expansion Following the First Court Ruling in Germany”, Hausfeld Bulletin 4/2019

Co-author, “Taking a Bite at the Apple: Ensuring a Level-Playing-Field for Competition on App Stores”, Hausfeld Bulletin 2/2019

Co-author, "Google Search (Shopping) as a Precedent for Disintermediation in Other Sectors: The Example of Google for Jobs", Journal of European Competition Law & Practice, Volume 9, Issue 10, December 2018, Pages 627–644

Co-author, "The EU's Competition Investigation into Amazon's Marketplace", Hausfeld Bulletin 4/2018

Co-author, “Die Anwendbarkeit und Reichweite von Schiedsvereinbarungen in Kartellschadensersatzprozessen” (Effectiveness and scope of arbitration clauses in antitrust damages claims), Wirtschaft und Wettbewerb 2017, 585-591

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