News date: 10 November 2026
Mikhail Ilyashev, Managing Partner at Ilyashev & Partners Law Firm, and Roman Marchenko, Senior Partner, have been recognized among Ukraine’s most preeminent lawyers in Commercial Litigation according to the international legal directory Lexology Index 2026.
Mikhail Ilyashev has been recognized as a Thought Leader in Commercial Litigation in Ukraine. With 29 years of hands-on experience in dispute resolution and international arbitration, Mikhail Ilyashev annually handles over 100 complex projects, representing the interests of leading investors, state-owned enterprises, Ukrainian and multinational corporations. His expertise is annually acknowledged by leading global legal directories, including Chambers Global, Chambers Europe, and The Legal 500 – EMEA.
Roman Marchenko is recommended in Commercial Litigation in Ukraine. As one of the strongest practitioners in international arbitration in Ukraine, he oversees over 500 court and arbitration proceedings annually, both in Ukraine and abroad. Since 2001, Roman Marchenko has regularly served as an arbitrator in international arbitrations (LCIA, ICC, LMAA, SCC) and a number of ad hoc arbitrations, including arbitration commissions in Ukraine, spanning a broad spectrum of industries ranging from aviation and energy to infrastructure and real estate.
Lexology Index: Commercial Litigation features in-depth analysis of the world’s leading dispute resolution lawyers recognized for their outstanding work, as well as leading practitioners aged 45 and over who have already established themselves as future leaders in dispute resolution. The latest edition of Lexology Index: Commercial Litigation includes 2,331 practitioners from 1,014 firms across 85 countries.
Lexology Index is an independent annual research report that, since 1996, has evaluated over 70,000 leading lawyers across 80 practice areas in 150 countries, relying on months of independent market research and confidential peer and client surveys. The research highlights only those law firms and practitioners who demonstrate the highest efficiency in resolving complex disputes and protecting clients’ commercial interests globally.