Mark Cullen is Chief Commercial Officer at Amadeus Cytric, where he leads global go-to-market for Cytric Easy—the platform that brings travel booking, event planning, itinerary sharing, expense processing, and sustainability insights into Microsoft Teams. He began his career in enterprise software with commercial leadership roles at Oracle and SAP, then moved into corporate travel and expense management. Mark helped launch Expedia Corporate Travel in 2003 and spent more than 15 years at Concur, leading teams across North America and EMEA during a period of rapid growth and innovation. At Amadeus Cytric, he focuses on how AI, embedded experiences, and user-centric design will redefine the traveler journey over the next decade. Mark holds an MBA from Boston University and an undergraduate degree from Marquette University.