Justin Yu is a founder and investor in several startups and has also been invited to serve as a member of the Executive Yuan’s Youth Advisory Committee. In 2010, Yu co-founded Plan b, a planning consultancy that promotes the notion of sustainable development as a tool. Over the years, Plan b has provided distinctive solutions for a diverse clientele including domestic and international businesses, NPOs, and government agencies. In 2015, the Produce Department was added to the firm to engage in in-house projects for spaces (by Plan b). The goal is to reimagine spaces to promote the use of sustainable development as a tool, and to showcase how to effectively integrate sustainable development with other tools, such as design thinking and big data. The Produce Department specialises in revitalising idle urban spaces and has reinvented a number of spaces that have been recognised through various design and social innovation awards. Projects include the Center for Innovation Taipei (CIT), an innovative office space transformed from the former Zhongshan Soccer Stadium, and ParkUp, a series of urban open space placemaking projects.