Helsinki is building an open city by developing new digital services in cooperation with companies, the public sector, and residents. The city aims to harness innovation from the entire community. Helsinki has been recognized as a leading smart city and is experimenting with smart urban living and services in its Kalasatama district. The city is piloting various Internet of Things projects in Kalasatama and developing smart mobility solutions like Mobility as a Service. Helsinki is making its data openly available and serving as an innovation platform and test bed for smart city technologies.