Boriana Tchobanova

Boriana Tchobanova serves as the Chief Operating Officer at Zilch since September 2025, bringing extensive expertise in business transformation and strategy from previous roles. Prior to Zilch, Boriana held the position of Chief Transformation Officer at American Express Global Business Travel from 2020 to September 2025, and spent 14 years at American Express in various leadership capacities, including Global Head of M&A Integration and Chief Operating Officer & GM. Notable accomplishments include overseeing a global organization of 300 and optimizing annual revenues exceeding $190M, leading analytics initiatives that identified over $300MM in process improvements, and consulting on strategic transformations for international accounts. Earlier experience includes driving marketing strategies at Entergy that contributed significantly to new market sales goals. Boriana holds an MBA in International Business and Finance from Loyola University New Orleans and the University of New Orleans.