The collaboration between the state and the nonprofit sector is defined by many different things in many different situations. This chapter will, through categorization and sorting, provide typologies where different types of collaborations under different conditions are established. The categorization and sorting will take place on three levels, from the broadest possible view on collaboration to the more specific. Firstly, the chapter will present some different ways in which the state and the nonprofit sector relate to each other as broad spheres of society. This level of analysis will be aided by some well-known theories on the social origins of civil society. Secondly, the chapter moves on to describe the various ways in which public administration organizations relates to nonprofit organizations (NPOs). This level is assisted by theory and research on what is known as Public Administration Regimes (PARs). Thirdly, and lastly, the focus is further narrowed to capture some different modes of collaboration found around the world. This mapping exercise is carried out using research that help put these different modes of collaboration into a typology. The chapter will conclude in a discussion of how these three levels and their typologies interact to shape collaboration between the public and the nonprofit sectors.