Dr iur Günther Leissler > Schoenherr (Schönherr Rechtsanwälte) > Vienna, Austria > Lawyer Profile

Schoenherr (Schönherr Rechtsanwälte)
Günther Leissler photo


Günther Leissler is a partner at Schoenherr, specializing in regulatory law, as well as data protection & data privacy.


Günther Leissler has been with Schoenherr since 2006. He is a member of the technology & digitalisation group and heads the firm’s data protection & data privacy group. His practice focuses on regulatory issues, where he specialises in privacy, telecommunications and life sciences. He frequently advises Schoenherr’s clients on corporate data protection matters such as the implementation of global database projects, and he represents them in the required regulatory approval and registration proceedings. He also gives frequent advice on the implementation of web-based telecommunication services and on cross-border projects such as the implementation of whistleblowing systems or intra-group databases. Günther regularly reviews draft legislation in the areas of privacy and telecommunications law on behalf of the Austrian Bar Association and he is involved in legislative procedures with respect to health data and genetic data regulation in Austria.


German, English


University of Vienna, Vienna/Austria (Dr.iur. 2006)
University of Vienna, Vienna/Austria (LL.M. 2002)
University of Vienna, Vienna/Austria (Mag.iur. 1997)

Lawyer Rankings

Austria > Data privacy and data protection

(Next Generation Partners)

Günther LeisslerSchoenherr (Schönherr Rechtsanwälte)

Schoenherr (Schönherr Rechtsanwälte) is developing a strong track record in GDPR-related proceedings. The data protection and privacy group is led by Günther Leissler, who assists with the implementation of database projects and web-based telecoms services on top of day-to-day GDPR matters. Furthermore, the firm operates an innovation hub, is engaged in Legal Tech Hub Vienna and offers clients a range of box tools to facilitate GDPR compliance.

Austria > Projects and energy

A projects heavyweight, Schoenherr (Schönherr Rechtsanwälte) has significant expertise assisting with motorways, wind farms and hydropower plants. The practice also assists its high-end clients with other energy technology and renewables projects. ‘Fantastic energy lawyer’ Bernd Rajal acts as firm-wide head of the department, with Christian Schmelz in charge of planning and environment, Günther Leissler leading the tech regulation group and counsel Johannes Stalzer responsible for public procurement. Clients include national and international corporations, municipalities, provinces and government authorities.