Bridging the gap between ‘Fin’ and ‘Tech’: The role of accelerator networks in emerging FinTech entrepreneurial ecosystems

•Identifies distinct FinTech entrepreneurial ecosystems in both London and Singapore.•Explores accelerator networks in the creation of FinTech entrepreneurial ecosystems.•Draws on 100 interviews with a variety of FinTech and broader technology actors.•Advances a conceptualisation of complex adaptive systems.•Significant implications for the traditional finance sector.