Founded in 2004 and headquartered in Paris, Travel Technology Interactive (TTI) is a leading provider of SaaS solutions for the airline industry. Our flagship product, Zenith, offers a comprehensive platform for inventory management, reservations, and optimizing the passenger experience. We proudly serve a diverse portfolio of airlines—from low-cost carriers to full-service airlines—across the Americas, EMEA, and APAC regions. Since its foundation in 2004, Travel Technology Interactive (TTI) has become a leading provider of SaaS solutions to airlines. In 2024, TTI merged with CitizenPlane, after which its flagship PSS solution, Zenith, became a foundational component of the new CitizenPlane Operating System (OS). The CitizenPlane OS is a modular, all-in-one platform that enables airlines to manage offer creation, revenue optimization, distribution, and delivery, unlocking new commercial opportunities with solutions just a click away.