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Lexology Index 2025: Mikhail Ilyashev and Roman Marchenko Among Ukraine’s Leading Commercial Litigation Experts - background image

Lexology Index 2025: Mikhail Ilyashev and Roman Marchenko Among Ukraine’s Leading Commercial Litigation Experts

News date: 10 November 2025

Mikhail Ilyashev, Managing Partner at Ilyashev & Partners Law Firm, and Roman Marchenko, Senior Partner, have been included in the Lexology Index 2025 list of leading lawyers for work in Ukraine in Commercial Litigation.

Mikhail Ilyashev is recognized as Thought Leader in Commercial Litigation. Mikhail Ilyashev has over 28 years of experience in both dispute resolution and international arbitration. Known as Ukraine’s Leading Individual in Dispute Resolution by Chambers Global, Chambers Europe, and The Legal 500 – EMEA, Mikhail Ilyashev annually handles over 100 projects in the Commercial Litigation field, acting on behalf of both local and international companies, private investors, and state enterprises.

Roman Marchenko is recommended in Commercial Litigation. Roman Marchenko is one of the strongest practitioners in international dispute resolution in Ukraine. Each year, he supervises over 500 disputes in Ukraine and abroad, in which the firm acts as an advisor. Since 2001 Roman Marchenko acts as an arbitrator in the international arbitration proceedings on a regular basis. He was appointed as an arbitrator for LCIA, ICC, LMAA, SCC, a number of ad hoc arbitrations, including arbitral panels in Ukraine. As an arbitrator Roman Marchenko covers Aviation, Shipping, Energy & Natural Resources, Real Estate & Construction, Infrastructure sectors with geographical focus on Ukraine, England and Wales, EU and USA.

Lexology Index: Commercial Litigation provides an in-depth analysis of the foremost litigators around the world who are singled out for their outstanding ability within this contentious context, as well as standout practitioners in the litigation field aged 45 or younger as future leaders in the market. The latest Lexology Index: Commercial Litigation report includes 1976 practitioners from 950 firms in 82 сountries.

Lexology Index is an independent study that annually – since 1996 – rates over 70,000 leading lawyers in 80 practice areas from over 150 countries and includes only firms and practitioners that achieved leading positions in respective fields of law in their jurisdictions. The professional edition allows an accurate selection of firms and practicing lawyers to provide legal services within the territory of the country in a particular field of law.