Mrs Agnieszka Stefanowicz-Barańska > Dentons > Warsaw, Poland > Lawyer Profile


Work Department



Agnieszka Stefanowicz-Barańska heads Dentons’ Competition Practice in Poland.
Since 1998, she has represented clients in numerous EU and Polish competition authority proceedings and before Polish courts, in cartel and other antitrust investigations. She has also assisted clients during dawn raids and in over 100 merger control proceedings, before both the European Commission and the Polish competition authority. She works with clients to design and implement their distribution networks and provides practical support to in-house teams in implementing antitrust compliance initiatives with, including risk-mapping and comprehensive antitrust audits. She has extensive experience in day-to-day advice to clients on abuse of dominance and horizontal cooperation issues, as well as antitrust issues related to M&A contracts.
She supports clients in many different sectors, including life sciences, automotive, FMCG, food, real estate, TMT, heavy industry, chemicals, energy, utilities, retail trade, transport, banking and insurance.


Partner and Head of the Dentons’ Warsaw Competition practice since 2001 (with the firm since 1993).


Polish, English, German.


IBA, Polish Competition Law Association (Chairperson since 2003). Admitted to the Polish bar since 1997. 


University of Warsaw, Master of Laws. Postgraduate diplomas from King’s College London in EC Law (with distinction) and EC Competition Law.

Lawyer Rankings

Poland > Competition/antitrust

(Hall of Fame)

Agnieszka Stefanowicz-BarańskaDentons

The department at Dentons takes a sectoral focus to the spectrum of competition and antitrust matters. ‘Practical and professional‘ counsel Anna Gulińska takes the lead on TMT and real estate; senior associate Maciej Marek is noted for chemicals and heavy industry, also handling big data issues; power, utilities, banking and insurance are the responsibility of senior associate Tomasz Kordala; while food, retail and life sciences are handled by senior associate Adrian Bielecki. The overall group is co-ordinated by Agnieszka Stefanowicz-Barańska, who also leads the CEE practice group, and has extensive experience representing clients before EU and Polish competition authorities and the Polish courts.