Social economy organizations (SEOs) operate in the third sector economy squeezed between the private and the public sectors, and focus on fulfilling social missions rather than maximizing profits. The COVID-19 pandemic dramatically disrupted and reshaped the global economic landscape of SEOs, including Agricultural Non-governmental Organizations (A-NGOs). This study sought to assess the effect of collaborative practices on financial sustainability of A-NGOs during Covid19 pandemic. The study was anchored on Collaboration theory which advocates that complex problems are best addressed through the efforts of multiple stakeholders. Data on collaborative practices including partnerships, alliances, community engagement and resource sharing was obtained from forty-two (42) A-NGO’s that had fully or partially engaged in activities for at least one year preceding the COVID19 pandemic. The study adopted a mixed method research design to appraise the effect of funding alliances. The study found A-NGOs that adopted collaborative funding alliances as opposed to reliance on traditional funding partners were more sustainable. Specifically, the study found partnerships and alliances, community engagement and resource sharing as significantly essential for maintaining stable support for ongoing operations and thus enhanced their financial sustainability. The study recommended adoption of organizational policies that encourage pooling of resources; and drafting of formal guidelines where already practiced to enhance their financial sustainability.