Profile
Work Department
Position
Attorney at Law, Partner, Head of Antitrust and Competition Practice
Career
With over 33 years of professional experience, including 31 years in antitrust and competition law in Ukraine, Oleksandr Fefelov is one of the most experienced practitioners in this area.
Oleksandr specializes in antitrust and competition law and represents Ukrainian and international companies in cases involving violations of antitrust legislation, abuse of dominant position, anti-competitive concerted practices, and unfair competition.
Oleksandr's practice includes merger control and concerted practice clearance, including the preparation and filing of notifications with the Antimonopoly Committee of Ukraine (AMCU), coordination of AMCU approvals, and assessment of antitrust risks in the context of corporate and M&A transactions. His expertise enables clients to structure transactions in compliance with competition law requirements and to mitigate regulatory risks.
Oleksandr has extensive experience in handling complex antitrust disputes and defending clients in proceedings before the AMCU and courts of all instances, representing their interests in disputes with other market participants and state authorities.
Oleksandr Fefelov also advises clients on public procurement and state aid matters, assisting businesses in their interaction with public authorities and entities funded from state and local budgets, minimizing competition law risks and protecting their interests in disputes with regulators and other market participants.
In addition to his antitrust practice, Oleksandr has experience in corporate law, M&A, intellectual property, privatization, and foreign investment. This enables him to provide comprehensive support for large-scale business projects by integrating competition, regulatory, and corporate aspects of transaction structuring and the implementation of commercial strategies.
Languages
Memberships
Education
Institute of International Relations, Taras Shevchenko National University of Kyiv, International Law Faculty (Master in International Law); Queen Mary and Westfield College of London University (London, Great Britain), International Commercial Law
Content supplied by Ilyashev & Partners
Testimonials
Collated independently by Legal 500 research team.
‘Ilyashev & Partners conducted a thorough legal review of our procurement regulations and supported us in the antitrust clearance of our property acquisitions. These matters were highly technical and required careful alignment of our humanitarian mandate with the strict demands of Ukrainian competition law.’
‘Ilyashev & Partners have been of great assistance in ensuring compliance, while preserving transparency and integrity. We value their ability to deliver efficient and reliable solutions.’
Key clients
- UPD Holdings Limited
- COFCO Agri Ukraine

