Oleksii Miagkyi

Oleksii Miagkyi is a leading Ukrainian white-collar defense and investigations lawyer. He advises companies, founders, executives, shareholders and private clients on complex criminal, regulatory and corporate misconduct matters, including fraud investigations, financial crimes, corporate disputes and crisis situations.

Oleksii focuses his practice on protecting businesses and individuals facing criminal and regulatory exposure arising from commercial activities, investments, corporate conflicts and government investigations. He has extensive experience developing defense strategies in matters involving fraud, misappropriation of assets, abuse of authority, tax-related allegations, procurement issues, corruption risks and other business-related offenses.

His practice also includes representing companies and individuals during pre-trial investigations, searches, and investigative measures, as well as in court and appellate proceedings. Oleksii regularly advises clients on urgent response strategies, evidence preservation, interaction with law enforcement authorities, and the coordination of parallel criminal, civil, and corporate proceedings.

In addition to defense work, Oleksii advises companies, shareholders and investors on internal investigations, corporate fraud matters and recovery strategies involving misconduct by employees, management or counterparties. His experience allows him to approach criminal and regulatory matters from both sides: protecting clients facing allegations and assisting businesses affected by unlawful conduct.

Oleksii frequently works on matters involving complex ownership structures, cross-border business relationships and international clients, coordinating with corporate, disputes and regulatory teams to address the broader commercial consequences of criminal investigations.

Before entering private practice, Oleksii served in the prosecutor’s office and later spent more than nine years as a judge, hearing criminal cases and serving as an investigating judge. This background gives him first-hand insight into how investigators, prosecutors and courts assess evidence, procedural risk and defense strategy.

He has been recognized by The Legal 500 EMEA for White Collar Crime and is recognized by clients and peers for his strategic approach, deep understanding of Ukrainian enforcement practice and ability to navigate sensitive and high-risk matters.

• Ukraine

• Yaroslav Mudryi National Law University, graduated with honors

• The Legal 500 EMEA, White Collar Crime