Sergii Regeliuk

Sergii Regeliuk is a dispute resolution, regulatory and corporate lawyer advising companies, investors, founders and public-sector stakeholders on complex commercial matters, international disputes and regulatory strategy.

Sergii’s dispute resolution experience includes international and domestic arbitration, cross-border litigation, enforcement proceedings and complex commercial disputes arising from corporate transactions, investments, shareholder relationships, contractual arrangements, energy projects and technology businesses. He has acted in matters involving arbitration under leading international rules, including ICC and LCIA proceedings, and advises clients on dispute strategy, risk assessment and enforcement.

Mr. Regeliuk also has extensive experience in regulatory and government-facing matters. Prior to private practice, he served as a Senior Lawyer at the Better Regulation Delivery Office (BRDO), where he advised Ukrainian government institutions and contributed to regulatory reform initiatives, legislative drafting and the development of business-friendly regulatory frameworks. His work involved cooperation with the Presidential Office of Ukraine, ministries, regulatory authorities and industry stakeholders, including matters related to energy regulation, corporate governance and EU regulatory approximation.

His regulatory background allows him to advise businesses operating in highly regulated sectors on market entry, compliance, government engagement and the impact of legislative developments on commercial operations. He has particular experience in energy, technology, telecommunications and other industries where regulatory considerations directly influence investment and business strategy.
Sergii also advises technology companies and innovative businesses on corporate structures, intellectual property, software licensing, privacy and data protection matters. His experience allows him to address the intersection between technology, regulation and commercial objectives, particularly for companies operating across borders.

• Ukraine

• Queen Mary University of London, LL.M. in Commercial and Corporate Law
• Taras Shevchenko National University of Kyiv, Master’s Degree in International Private Law

• Expert-Volunteer, Better Regulation Delivery Office (BRDO), Ukraine / Nov 2015 – Present
• Rebuilding Ukraine: driving investment and economic revival (Publication)