This chapter delineates the spaces, positions, strategies, and alliance-making of a composite movement in transnational civil society, which has developed in parallel with, and in intersection with an emerging global governance regime on migration supported by the United Nations, intergovernmental forums, and international organisations. With reference to an overall critical understanding of the political economy of international migration, the chapter charts the changing conditionality of a dominant ideoscape of ‘participatory governance.’ This is complemented by an examination of ideopolitical positions and possibilities for building counterhegemonic spaces through a global social movement, critically confronting a systemic hegemony of ‘managed migration.’