Olesya PRANTYUK

Olesya Prantyuk is a Chartered Certified Accountant with more than 15 years of experience in finance and accounting, including over 9 years of experience in disputes. She has been appointed as an expert on 4 occasions (one High Court litigation and three commercial arbitrations) and has assisted the named expert on more than 40 occasions in matters of forensic accounting and commercial damages.

“Olesya is a profound expert in her area” “She has a pragmatic approach and understands her clients’ needs” “She is a quick thinker, and is very responsive” - WWL Arbitration Future Leaders – Expert Witnesses 2024

Olesya has worked on matters in various forums, from litigations in the UK and Swiss courts, to investor-state and commercial arbitrations on behalf of claimants and defendants (LCIA, ICSID, ICC, SIAC, ADCCAC, SAC, AAA). Her high-profile cases include a freezing order application with values in excess of $2 billion and a valuation of a financial institution of $1.3 billion. Her cases as the named expert involved space technology, TMT, and financial services sector, with the damages up to $35 million.

Olesya’s experience in forensic accounting covers a wide array of matters across the aerospace & defence, oil and gas, financial services, logistics, retail, mining, precious metals, and energy sectors, ranging in size between $10 million and $2 billion. She also has a particular interest in aerospace and technology that has the capacity to improve the lives of people.

As a native Ukrainian and Russian speaker, Olesya has been involved in matters regarding assets in Central Europe, Eastern Europe, and the Middle East; and in particular, in matters related to high-net-worth individuals across the EMEA region. In addition to dispute work, Olesya has also led fraud investigation matters and dealt with the allegations of corruption.