Oliver Süme | Fieldfisher
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Professional background

Professional background

My main areas of practice

I have been advising companies on legal issues relating to digitalization, data protection, and IT and technology law for over 25 years. My particular expertise lies in international data protection law, IT and technology contract law, as well as data economy, cybersecurity, and e-commerce law. I support companies of all sizes - from dynamic tech start-ups to global corporations and public sector institutions - in the legally compliant design and implementation of complex digitization, cloud, and IT infrastructure projects.

A central focus of my work is on the legal design of modern data strategies, the establishment of forward-looking data spaces, and the development and implementation of legally compliant solutions in the field of artificial intelligence. With my many years of experience in advising international technology markets and rapidly scaling digital companies, I offer practical and strategic advice, characterized by a deep understanding of technological contexts and the respective legal requirements.

I have been following regulatory and legal policy developments in the European internet and technology sector for many years and have served as an expert witness in several hearings of the German Bundestag in the context of legislative processes on data law. Among other things, I advised the German Federal Ministry of Economics on the development of the European cloud and data ecosystem “Gaia-X.”

I advise my clients in German and English.


Publications

I am co-editor of the journal "Recht der digitalen Wirtschaft (ZdiW)" published by Wolters Klüwer.


Personal engagement

I am Chairman of the Board of eco Verband der Internetwirtschaft (www.eco.de) and Chair of the Data Economy Committee of the European umbrella organisation of Internet Service Providers EuroISPA (www.euroispa.org), based in Brussels.

I am also a member of the Board of Trustees of the German Foundation for International Legal Cooperation (www.irz.de) and a member of the Advisory Board of the Mobility Data Space (www.mobility-dataspace.eu).

Authored pieces

All Resources
Technology and Data
Insight

CADA in Practice: How MedTech and Health Companies can get ahead of the new EU Sovereignty Rules

27.08.2026
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Technology and Data
Insight

CADA Explained: Understanding the EU's New Framework for Cloud and AI Sovereignty and its Implications for MedTech

21.08.2026
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A glowing lock icon is centered against a background of binary code (1s and 0s), symbolizing digital security. The binary code is displayed in horizontal lines, with shades of blue and purple creating a dynamic, futuristic appearance.
Data and Privacy
Insight

Trump v. Slaughter: What the US Supreme Court's ruling means for your EU-U.S. data transfers

02.07.2026
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Close-up of various measurement instruments used in a laboratory setting. The image features clear cylindrical tubes marked with measurement scales in milliliters. The colors are predominantly shades of blue and pink, giving the scene a vibrant hue.
Insight

New interface obligations for medical aids and implants in Germany

29.05.2026
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Technology
Insight

9 tech sector trends for 2026: regulation, resilience and recalibration

28.01.2026
This article examines the legal, regulatory and dispute‑risk trends shaping the technology sector in 2026 , with a focus on Europe and internationally active tech businesses.
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