Maciej Gawroński

Managing Partner

Authority in data protection, information technology, cloud computing, cybersecurity, intellectual property and business law

Maciej was a consultant to the Art. 29 Working Party on Draft Ad hoc contractual clauses “EU data processor to non-EU sub-processor” (WP 214) and member of the the European Commission Expert Group on Cloud Computing Contracts (co-leader of data portability stream). Maciej was responsible for a creating a contract for the largest IT implementation in the Central and Eastern Europe financial sector of and maintaining it throught the full life-cycle of the project, as well as for legal aspects of hundreds of other IT projects.

Maciej represented clients in Bilateral Investment Treaty (BITs) Arbitration proceedings , before the Court of Arbitration at the International Chamber of Commerce in Paris, Court of Arbitration for Sport in Lausanne, the Polish Supreme Court, the Polish Supreme Administrative Court, the Polish Public Procurement Appeal Chamber, the Court of Arbitration at the Polish Chamber of Commerce as well as before the Polish common courts – in cases worth from millions to billions of Euro.

In 2014, working on Draft Ad hoc contractual clauses “EU data processor to non-EU sub-processor” (WP 214) Maciej proposed to the European Commission a rule of non-EU personal data sub-processors liability which eventually became a general rule of all processors’ liability contained in Article 82.1 of the EU General Data Protection Regulation (GDPR) as well as the rule of personal data portability which eventually became Article 20 of the GDPR. Maciej consulted also rules of sub-processing which eventually became Article 28.2 and 28.4 of the GDPR.

Maciej edited and co-authored “Guide to the GDPR” the No. 1 legal bestseller 2018 in Poland book (fourteen thousand copies), English edition published in July 2019,

Maciej regularly publishes and lectures on the GDPR, data protection, cloud computing, financial sector regulation, cybersecurity, intellectual property.

Prior to creating Gawroński & Partners Maciej established and managed the Polish branch of Bird & Bird – international intellectual property and IT law butique.

Maciej is:

  • Top 4 Polish Technology Media & Telecommunications Law Expert Chambers Europe 2017-2019
  • Recommended by Best Lawyers in IT and Intellectual Property  2013-2019
  • Top 3 Polish Technology, Media, Telecommunications, Data Protection Law Expert Rzeczpospolita Ranking of Law Firms 2014-2019
  • Recommended in Technology, Media & Telecommunications by Guide to the World’s Leading Lawyers 2016
  • Recommended in Patent Disputes in Life Sciences by Who’s Who Legal 100 2016

Maciej’s experience includes corporate consulting, regulatory consulting, dispute and transaction counseling concerning company law, contracts, technology, mergers and acquisitions, investment ventures.

Builder of one of the Top Ten Polish Law Firms by revenue according to Rzeczpospolita Daily Ranking of Law Firms 2016 and 2017.
twitter: @maciekgawronski


Market sources outlining his “operational efficiency, communication and pro-business consulting. He is recognised for his IT knowledge and has extensive experience of handling IT matters relating to the finance sector.”, Chambers & Partners Europe 2016

“…extensive understanding of IT processes and related risks”, Chambers & Partners Europe 2015
“…very good in IT.”, Chambers & Partners Europe, 2014
“…in a league of his own.”, Legal 500, 2013
“…clients love working with him.” Chambers & Partners Europe, 2012
“…IT expert Maciej Gawronski.”, Legal 500, 2009
“…combines corporate skills and expertise in the legal aspects of new technologies.”, Legal 500, 2006


  • Polish
  • English
  • French


Gawroński & Partners

T: +48 22 243 49 53


Al. Jana Pawła II 12

00-124 Warszawa


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Ilustracja do „Cyberiady” Stanisława Lema, Daniel Mróz ©za zgodą Łucji Mróz-Raynoch
Ilustracja do „Cyberiady” Stanisława Lema, Daniel Mróz ©za zgodą Łucji Mróz-Raynoch