JENTZSCH IT is a law firm highly specialized in information technology law and legal questions related to data privacy and IT security. Dr. Jana Jentzsch founded the firm in 2009, it is registered in the commercial register at the Hamburg Court, Germany. The firm’s office is located in the Alsterarkaden next to the historic town hall.

Our advice on information technology related issues is wide-ranging, covering IT compliance, software licensing and intellectual property, data analytics, new AI tools, the Internet of Things, facial recognition, adtech, data privacy investigations, cyber breach and other security matters, competition concerns and more.

We advise clients in many sectors, including the highly regulated healthcare and insurance sectors.

Our goal is to develop the best legal solution for the Client, considering the technical infrastructures and the given economical circumstances. We look at the technical foundation of involved software and IT systems in detail in order to be able to draw  the most efficient conclusions for the legal evaluation. Our team of attorneys is not only fit in the legal rules that need to be applied, but also has a sound technical knowledge.


Dr. Jana Jentzsch, LL.M.

Jana is a certified lawyer for information technology law (certified by the Hamburg Bar Association), and an IAPP- certified Information Privacy Professional – Europe (CIPP/E). Her main area of expertise is IT compliance consulting, which involves privacy and governance issues as well as software license compliance.  Jana has lead Clients through crucial legal and strategic Risk Assessments for new tech business models, as well as for complex software implementation and migration projects (e.g. SAP S/4 HANA migration scenarios).

Jana’s main areas of expertise are the following:

  • IT Compliance: Data privacy and security, in particular issues involving new technologies, AI, robotics, machine learning, international data transfers and data processing in complex infrastructures.
  • IT Compliance: software licensing (in particular involving SAP & Oracle software), software audit support.
  • IT contract support (project agreements, S/4 HANA implementation projects, migration projects, cloud services agreements, service level agreements, IT & privacy due diligence).

Other qualifications:


Jana Jentzsch is a member of the Hamburg Bar Association, the German Society of Law and Informatics (DGRI), the International Association of Privacy Professionals (IAPP), and a founding member of the DOAG Legal Council (DOAG is the German Oracle User Group).

Languages: German, English, French, Italian

Jana Jentzsch studied law at the Universities of Bonn, Milan (Italy) and Cologne. During her studies, she worked as a freelance journalist for a publishing house in Bonn. After passing the First State Examination, she earned a Master of Laws (LL.M.) degree in International Air and Space Law from the University of Leiden (Netherlands). As part of the LL.M. degree, she completed traineeships at the Permanent Court of Arbitration in The Hague and the European Space Agency in Paris. Jana wrote her doctoral thesis in English at the University of Cologne under the supervision of Prof. Dr. Stephan Hobe („Satellite Imagery for Verification and Enforcement of Public International Law“).

During the clerkship for the bar exam, Jana worked in the business and press departments of the German Embassy in Washington D.C. After the Second State Examination in 2005, she was admitted to the Frankfurt bar. Jana worked as an attorney at the international business law firm Lovells (now merged to Hogan Lovells LLP) in Frankfurt in the practice group technology, media, telecommunications (TMT). Subsequently, she moved to Hamburg and worked in the prominent Hamburg media law firm Prinz Neidhardt Engelschall. During this time, Jana represented companies and individuals in high-level media law disputes.

Jana is particularly interested in cases which involve software licensing, software maintenance, software projects and data processing.

Requirements for Lawful Cloud Computing, Hamburg, April 2015
Legal Framework of Software License Audits, Stuttgart, March 2015
Applicability of SAP’s General Terms and Conditions, Cologne, March 2015
SAP: Legal Framework of License Audits and Indirect Usage, Berlin, February 2015
Used Software and License Audits, Berlin, February 2015


Liability Risks in Data Protection and Data Security, Hamburg und Düsseldorf, November 2014
Software License Optimization from a Legal Perspective, Stockholm, October 2014
Legal Framework of License Audits, Munich, May 2014
Legal Framework for Used Software according the the ECJ-Judgment of 3 July 2012, Leverkusen, May 2014
Current Legal Issues Arising with Used Software, Berlin, Februar 2014


Legal Framework for Used Software according the the ECJ-Judgment of 3 July 2012, Hamburg and Cologne, November 2013
“Data Protection – Important Topics for Executives”, Hamburg, September 2013
“Bring Your Own Device (BYOD) – Legal Aspects”, Hamburg, September 2013

Dr. Daniel Taraz, LL.M.

Daniel Taraz is admitted to the Hamburg bar and gives legal advice to companies and tech start-ups in all matters of information technology law and data privacy law.
Main areas of expertise:

  • Software Licensing Comliance, esp. SAP & Microsoft
  • IT-Projects
  • Data Protection Law & IT Security Law
  • IT Procurement Law
  • E-commerce law


Daniel Taraz ist a member of the Hamburg Bar Association.

Other qualifications:

Microsoft Licensing Professional

Languages: English, German

Daniel studied law at the universities of Bremen and Hamburg. He was responsible for the legal and technical realization of different e-commerce projects and also has advanced technical knowledge in software programming. After his law studies, he completed a PH.D. dissertation contemplating different legal aspects of privacy law in the internet age, including company rights against cyber crime and online investigations.

Daniel was admitted to the bar in 2014 and started his career in a specialized law firm for intellectual property law in Hamburg. He joined the law practice JENTZSCH IT in 2015.

Professional Network

We are a team of highly specialized professionals and concentrate on the best legal and economic solutions for your business. If necessary, we profit from a strong network of lawyers, IT technical experts and business consultants. We work with:

  • Technical tool providers to measure your standard software use of SAP, Oracle, Microsoft and IBM software;
  • •International known business consultancy in the field of SAP contract optimization;
  • Specialized law firm in the field of public procurement law, international telecommunications law;
  • Specialized law firm in the field of patent and trademark law;
  • Law firm in New York with German and US attorneys, specialized in the field of start-ups, venture capital and company law;
  • Service provider in the field of telecommunications, data networks, security standards and ISO certifications;
  • Specialized law firms in IT and IP law in Vienna, Austria and in Switzerland.