This chapter introduces the over a hundred-year-old Swedish tenants’ movement. It aims to conceptualize current forms of resistance and practices among organized tenants in contemporary Sweden. This chapter argues that organized tenants’ practices over the last decade have been highly strategic, collaborative, flexible, and contentious, engaging individuals, and collectives, especially given the usually invisible nature of these actions and practices. Its focus rests on the institutionalization of social movements and the potential of non-institutionalized and non-formalized collective action to transform existing institutional arrangements.