Donka Stoyanova


Equally adept in competition and litigation, Donka Stoyanova is able to crack the most intricate legal puzzles.

Throughout her 15 years of practice Donka Stoyanova has established an enviable track record in the areas of public procurement, competition, litigation, administrative, commercial, corporate, and international private law. She is an experienced competition litigator having successfully represented clients before the Bulgarian competition authority and in court proceedings for market abuse, collusion, cartels and other unfair commercial practices.

Donka has been involved in several major appeals of legislative acts of institutions such as the Council of Ministers and Ministry of Health and her experience includes numerous challenges of administrative acts of the Consumers’ Protection Commission and the National Health Insurance Fund. She has profound and varied experience in many challenges of public procurement procedures before the Commission for Protection of Competition and the Supreme Administrative Court. 

Donka was a key member of the team who after a seven-year court saga achieved an out-of-court settlement for our client Sofia Airport refuting the allegation of its dominant position. Her recent work as a court representative of a leading Bulgarian pharmacy chain led not only to repealing of the significant sanction imposed by the local regulatory authorities, but also to a consistent court interpretation of the regulation on the price formation of a medicine, thus providing clarity and security for all market players.

Work highlights

  • Represented Sofia Airport before the Bulgarian Commission for Protection of Competition regarding alleged abuse of dominance via predatory pricing
  • Represented a local consortium before the Supreme Administrative Court in the appeal procedure against the Tariff of Fees Collected for Proceedings Under Chapter XI of the Public Procurements Act, as a result of which the latter was revoked
  • Represented a contracting entity operating in the utilities sector in numerous law suits concerning sanctions imposed by the State Financial Inspection Agency for non-compliance with public procurement rules


Sofia Bar Association


  • University of Sofia, Facultyof Law (LLM)
  • Bulgarian Academy of Sciences, Institute for Legal Studies, PhD candidate in International Private Law


  • Bulgarian
  • English
  • German

Awards & accolades

No items found.

„Key lawyers include Donka Stoyanova, praised for her ‘attention to detail’" – Legal 500, EU and Competition


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