Berlin has long been a diverse, multicultural city and today about 1 million – or 30% – of its inhabitants have a migration background, meaning that they – or at least one of their parents – were born without German nationality. Berlin’s authorities perceive diversity as generally accepted in Berlin’s society. This case study takes a close look at the city’s migrant integration programmes and services, examining how all levels of government participate in these programmes, as well as the growing role played by third-sector agencies. It considers how Berlin’s administration reacted to the sharp rise in asylum applications in 2015-16, rapidly updating existing integration measures as well as developing emergency ones. The integration of these newcomers needs to be monitored in order to demonstrate policy impact and to help establish whether such policies can be expanded to help other migrant groups that still experience wide socio-economic gaps compared to native population.