The main theme of this research is to accelerate collaboration with global sites by sharing with them the concept and vision, methodology, technology, and practical knowledge related to Society 5.0-type smart cities, which have been explored across the multi-pronged themes studied at the H-UTokyo Lab in Phase 1 starting from 2017 and in Phase 2 starting from 2020. The key concepts of Society 5.0, namely, “people-centric society,” “balancing economic advancement with the resolution of social problems,” and “merging cyberspace and physical space” need to be considered against the backdrop of a multitude of issues, such as declining birth rate and aging population, increasing social security costs, increasing risk of large scale disasters, and aging of infrastructure. Such a contemporary urban situation is not only in Japan but also in many other countries. Based on the practical work undertaken and the results obtained thus far, the H-UTokyo Lab will build a network of practitioners and leaders of smart cities worldwide, along with professional experts. The H-UTokyo Lab will also enhance the sharing of knowledge and frameworks for building a common foundation as a global standard.