We developed a methodology to identify sector specific opportunities by examining bottlenecks and drivers for sustainable innovation. Our research results are presented in 4 reports: R I explores the highly innovative chemicals sector and how it deals with opportunities and bottlenecks in sustainable innovation. R II examines the project driven construction industry and how entrepreneurs and incumbent firms develop strategies to deal with the bottlenecks of sustainable innovation. R III extends II by highlighting the role of the incumbent firms in this process. R IV deepens report II by illuminating the strategies of entrepreneurs in the transition to sustainable construction.