With nearly twenty years of international experience, Umberto Callegari has led strategic transformations, M&A operations, corporate turnarounds, and growth programs across Europe, the United States, and Asia. He had senior leadership roles at Microsoft, Accenture, Deloitte, and Octo, consistently driving high-impact initiatives across multiple industries and markets.
Maria Leistner serves on the boards of EFG International, EFG Luxembourg, and Crypto Finance (part of Deutsche Börse Group). With more than 30 years of international experience across investment banking, private banking, asset management, and private equity, she brings a deep understanding of global finance and governance.



