The question concerning vulnerable EU-citizens has been widely debated in Sweden the last few years. Due to unclear legislation and strong municipal self-determination municipalities act differently regarding vulnerable EU-citizens. The purpose for the dissertation is therefore to analyse how Stockholm and Gothenburg City acts and collaborates with non-profit organisations in the question concerning vulnerable EU-citizens and whether the approaches can, according to the theory of territorial governance, be viewed as effective. The dissertation has showed that Gothenburg City has created a common action plan with surrounding municipalities in order to expand their territory. Gothenburg have also signed an IOP-agreement with several non-profit organisations in order for them to act together. The dissertation has showed that an IOP-agreement can be equated to an effective and sustainable partnership. Stockholm City on the other hand has not expanded their territory, since an equivalent interpretation of the law is important to the municipality. No IOP-agreement has been signed and a reason for this could be that the relationship between non-profit organisations in Stockholm City has historically been characterized by competition instead of trust. Due to the complex question concerning vulnerable EU-citizen, new forms of partnership has though been developed in Stockholm City.