The document explores the role of organizations of the urban poor (OUPs) in enhancing social capital and solidarity among marginalized communities in Kisumu, Kenya. It highlights the dynamics of social capital within slum areas and critiques the reliance of both Neighborhood Planning Associations and Slum Dwellers Federation on external support, which limits their sustainability and inclusivity. Despite their potential to empower the urban poor, these organizations often exclude the most vulnerable and thereby challenge the effectiveness of their participation in development policies.