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 competition practice at Dentons specialises in antitrust investigations and state aid, as well as in complex merger control cases and contentious matters involving investigations and litigation. The team is also well-situated to handle cross-border mandates. Practice head Agnieszka Stefanowicz-Barańska is active in representing clients in EU and Polish competition authority proceedings and before Polish courts. She is supported by Michał Bernat and Aleksandra Siemieniec, who focus on state aid; counsel Anna Gulińska, who is a specialist in TMT and real estate; senior associate Maciej Marek, who is skilled in chemicals and heavy industry; and Adrian Bielecki, who has a core focus on transport, logistics and life sciences.

Poland > Healthcare and life sciences

Dentons‘ life sciences and healthcare practice provides regulatory, advisory and litigation services to its clients, including local and international pharmaceutical and biotechnology companies, medical device distributors, drug retailers, pharmaceutical organisations and Polish healthcare providers. Practice head Wojciech Kozlowski is adept at litigation and regulatory matters, and Maria Samolińska-Hojda was recently promoted to pharmaceutical consulting director and specialises in advising on wholesale trade in medicinal products and brokerage of medicinal products. Agnieszka Stefanowicz-Barańska and counsel Adam Odojewski are also names of note.