News date: 25 May 2026
Mikhail Ilyashev, Managing Partner at Ilyashev & Partners Law Firm, and Senior Partner Roman Marchenko have been named among the world’s most influential litigators by the authoritative international directory The 2026 Lawdragon 500 Leading Global Litigators. The results of the research were published on May 22, 2026.
This year, only five lawyers from Ukraine were featured in The 2026 Lawdragon 500 Leading Global Litigators list, highlighting the exceptional global recognition of the firm’s partners and their expertise.
Mikhail Ilyashev has over 28 years of experience in dispute resolution and international arbitration. Recommended as a market leader for many years by Chambers Global, Chambers Europe, and The Legal 500 – EMEA, Mikhail Ilyashev advises Ukrainian and international companies, investors, business owners, and top management on corporate governance, mergers and acquisitions, corporate risk management, shareholder rights protection, and general aspects of doing business in Ukraine, as well as general matters of Ukrainian and international law.
His expertise includes supporting large-scale corporate transactions, conducting comprehensive legal due diligence, structuring investment projects, establishing business structures, and advising on projects in energy, infrastructure, public-private partnerships, concessions, and cross-border investments in strategic sectors of the economy. Mikhail Ilyashev handles more than 100 commercial disputes annually, representing the interests of private businesses and state-owned enterprises. He is regularly engaged as an independent expert on Ukrainian law in international arbitrations and foreign court proceedings, including the Arbitration Institute of the Stockholm Chamber of Commerce, as well as courts in the UK and the EU, providing expert opinions in disputes involving international investors, financial institutions, and multinational corporations.
Roman Marchenko was recognized among the world’s top 500 lawyers specializing in international dispute resolution and arbitration due to his long-standing practice advising Ukrainian and international companies on disputes arising from international commercial and investment projects, representing parties in international arbitrations, and providing comprehensive support in the recognition, enforcement, and setting aside of arbitral awards in various jurisdictions worldwide.
Roman Marchenko’s unique expertise spans cross-border dispute resolution in energy, infrastructure, international trade, aviation, defense, shipping, real estate, and construction. This includes disputes related to aircraft financing and leasing, air carriage, defense contracts, and the operations of defense industry enterprises. A significant area of his practice involves acting as a sole arbitrator or a member of an arbitral tribunal in international arbitration proceedings and Ukrainian arbitral tribunals, as well as preparing expert opinions on Ukrainian law for court proceedings in the US, the UK, and other foreign jurisdictions.
The global directory The Lawdragon 500 Leading Global Litigators, now in its fifth consecutive year of publication, is an annual guide focused entirely on cross-border litigation and courtroom advocacy. The ranking features acclaimed attorneys specializing in international arbitration, international dispute resolution, global business conflicts, and investigations.
The list of the world’s top 500 lawyers is selected through a rigorous review of nominations, based on independent journalistic research and peer editorial review.