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Dr Holger A. Kastler

Senior Associate

Holger Kastler advises both local and multinational clients on any commercial IP and IT law matter. Holger’s clients are established technology companies facing challenges digitalizing their businesses as well as younger companies in the IT industry launching new products or developing new ways of commercializing their IP assets.

Holger has gained experience in drafting and negotiating various technology licensing agreements for his clients and regularly advises companies on the licensing and commercial use of open-source software. He also assists companies in protecting their technical know-how and trade secrets.


  • Advising various clients on hardware and software development agreements, IT outsourcing, cloud services, and XaaS agreements (SaaS/PaaS/IaaS/etc.).
  • Advising an internet and mobile telecommunication service provider on the introduction of a Single Sign-On service.
  • Advising an international manufacturer of Virtual Reality (VR) products on their product launch in the EU .
  • Advising a start-up regarding works created by Artificial Intelligence (AI) and the implications for the protection and licensing of IP.
  • Advising various clients on research & development agreements.
  • Advising an international chip manufacturer on technology licensing.
  • Advising an internet and mobile telecommunication service provider regarding FRAND licensing and standard-essential patents (SEP).
  • English
  • German
  • Bilgi University Istanbul
  • University of Konstanz, First State Examination, 2008
  • Higher Regional Court of Berlin, Second State Examination, 2012

    University of Konstanz, Dr. jur., 2016

Pro Bono

  • Pro bono work for various human rights organizations.


Prior Experience

  • 2014 – 2015, Associate at a leading international law firm, Duesseldorf
  • 2015 – 2018, (Senior) Associate at a leading international law firm, Berlin
  • 2018 – 2022, Managing Associate at a commercial law firm, Berlin
  • 2022 – to date, Senior Associate, DLA Piper, Munich

Additional Information

  • Data Protection Officer (TUEV Nord)

Memberships and Affiliations

  • Licensing Executives Society (LES)
  • German Association for Intellectual Property and Copyright Law (GRUR)
  • German Association of Law and Informatics (DGRI)
  • International Association for the Protection of Intellectual Property (AIPPI)
  • German-American Lawyer's Association (DAJV)