Oleh Tarasiuk specialises in competition law, as well as the resolution of commercial and administrative disputes before national courts. He has over 18 years of practical experience with leading law firms and in corporate legal departments.

His practice focuses on strategic antitrust advice and business defence, including support in investigations conducted by the Antimonopoly Committee of Ukraine, structuring corporate and investment projects in line with competition law requirements, obtaining merger control and concerted practices clearances, and advising on compliance with regulatory requirements in the field of competition.

Oleh has extensive experience representing clients in cases involving violations of economic competition protection laws and unfair competition, as well as in court disputes related to decisions of public authorities and regulators.

He advises on mergers and acquisitions (M&A), corporate restructurings, shareholder conflicts, and disputes between business participants, including their resolution through litigation.

He has been recognised by the “Client’s Choice. TOP 100 Lawyers of Ukraine – 2026” ranking in the “Antitrust Law” category.