Cooperation with other public and private sector actors increasingly plays a crucial role in the development of public services with the aim to provide customers with higher quality social welfare and health-care services. Networked cocreation in the design and provision of public services is gaining global popularity, because it also offers a suitable approach to jointly solve complex social welfare and health-care challenges. This document is especially intended for city decision makers, developers and other public sector reformers. It provides interested companies with information on implementing co-creation and cooperation with public sector actors. More specifically, the document discusses co-creation and its benefits for the various actors and provides a co -creation process model and some tools to support the model’s practical implementation. It also includes examples of how cooperation between cities and implementing a common operating approach can be used to promote the creation of new, innovative social welfare and health-care services.