Shortly after the Velvet Revolution, he helped establish Credit Suisse First Boston's Prague subsidiary. Subsequently, he co-founded Patria Finance, the first private investment bank in the Czech Republic, which played a significant role in many privatization projects.
The bank also played a vital role in issuing the first Czech sovereign bonds, establishing asset management and corporate finance standards, and founding the Prague Stock Exchange, where Zdenek became a member of its first supervisory board. In the following years, he made investments in a wide range of sectors - mineral resources, real estate, transport, media, computer games, and sports. In 2010, Zdenek revitalized a historic industrial site in the Karlin district of Prague, creating the unique administrative and communal complex Forum Karlin. A special place among his investments is the Czech media house Economia.