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Dr. Thorsten Ammann

Partner

People

Dr. Thorsten Ammann

Dr. Thorsten Ammann

Partner

People

Thorsten Ammann

Thorsten Ammann

Partner

Thorsten Ammann is a Partner based in our Düsseldorf office. He has extensive experience in tech and data with a special focus on strategic sourcing, digital transformation and artificial intelligence.

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Profil & Expérience

Thorsten Ammann is a Partner based in our Düsseldorf office. He has extensive experience in tech and data with a special focus on strategic sourcing, digital transformation and artificial intelligence.

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Profil complet

Thorsten is a Partner in our IT & Data team and based in our Düsseldorf office since May 2026. He advises clients on tech and data with a special focus on strategic sourcing, digital transformation and artificial intelligence.

As a strategic bridge builder between Legal, IT operations and Business units Thorsten is often welcome to support in business critical, large scaled, IT sourcing, outsourcing, data analytics, digital transformation and AI projects of particular complexity. He has also extensive experience in distressed project scenarios, where regulatory specifics matter or where digital sovereignty is key. 

Thorsten is author and co-author of 40+ publications on IT and technology matters, has contributed to standard legal literature, such as the Computer Law Guide (Computerrechts-Handbuch), the Legal Guide on Artificial Intelligence and Machine Learning (Rechtshandbuch Artificial Intelligence und Machine Learning), a standard legal commentary work on the European AI Act as well as to leading jurisprudence journals. Thorsten lectures data law at Saarland University and is a frequent speaker on legal specifics of Tech, Data and AI.

Thorsten has been recognized by Legal 500 as an “excellent IT lawyer, always reliable” and in 2026 he was ranked a “Leading Partner” for Artificial Intelligence in Legal 500 Germany. Business weekly WirtschaftsWoche has named Thorsten to its list of “Top Lawyers”  for IT Law.

Best Lawyers has recognized Thorsten for Information Technology Law since 2021.

Recognition & Quotes

Named a “Leading Partner” in Artificial Intelligence by Legal 500 Germany (2026)

“Thorsten Ammann has a great understanding of clients’ needs with regard to AI.” – Client in Legal 500 Germany 2026 

Awarded “Top Lawyer” for IT Law by WirtschaftsWoche (2023)

“Thorsten Ammann in particular combines legal, compliance, IT and business management expertise (...). His openness, patience and willingness to understand the client’s situation in the technical context brings added value to the legal service.” – Client in Legal 500 Germany 2026

Services

Services

  • Cyberrisques

  • Technologie, externalisation et données