This document discusses City as a Service (CaaS) capabilities and building the best future for cities. It outlines that CaaS utilizes innovation and digitalization to transform public services through collaboration between companies, citizens, cities, universities and considers infrastructure and nature. It presents CaaS as transforming capabilities in areas like leadership and culture, knowledge management, and new business models for cities. The document then details Espoo, Finland's journey in developing CaaS capabilities since 2013 across areas such as leadership skills, ICT architecture, experimentation, project management, co-creation, and new service products and business models.