This book brings together the research fields of start-up ecosystems and diaspora entrepreneurship. The author interprets the results of semi-structured interviews with four diaspora entrepreneurs and four experts in Berlin, as well as observations from field studies and the analysis of secondary sources. The findings prove impacts of diaspora ventures on the dynamics of the Berlin start-up ecosystem and are applied to a modified version of the ANDE toolkit. Identified domains of the start-up ecosystem Berlin are demonstrated. Berlin is among the top locations of start-up activities world-wide and currently the most dynamic ecosystem globally.