Ihor Kolomoyskyy

With fellow Ukrainian billionaire Henadiy Boholyubov, Ihor Kolomoyskyy founded PrivatBank in the early 1990s. It grew to be a key bank in Ukraine, handling more than a third of private deposits and serving approximately half the country's population. In 2016, Ukraine's government nationalized the bank; an investigation suggested large-scale fraud over a period of ten years. In Dec 2017, the High Court of London ordered a freeze on some $2.5 billion worth of assets held by Kolomoyskyy and Boholyubov. They deny the charges.Kolomoyskyy was forced to step down as governor of the Dnipropetrovsk region in March 2015.