This article investigates the ways migrant organisations (MOs) contribute to migrants' approaches to dealing with social risks. It draws on in-depth interviews collected among migrants who are engaged with different migrant-led associations and organisations in the Western part of Germany. The findings demonstrate that MOs offer a variety of opportunities that enable migrant populations to manage social risks in accordance with their individual needs and capabilities, social relationships, and access to welfare services. We identify three main functions of MOs, which illustrate the manifold ways they contribute to their members' social risk-averting strategies by affecting experiences of belonging: the networking, consultancy, and acquainting functions. While much social policy literature has focused on the barriers to using welfare services, we find belonging to facilitate diversification in migrants' social protection strategies. As MOs combine an informal community character with a formalised organisational setting, they provide sources of both belongingness and social protection, and thus importantly affect the ways people secure their livelihoods and wellbeing at different stages of migration.