The Centre for Clinical Care and Clinical Research (CCCRN) is making a Request for Applications (RFA) to engage qualified Community-Based Organizations (CBOs) and Civil Society Organizations (CSOs) with demonstrated technical and operational capacity to deliver high-quality, community-based, life-saving services to priority sub-populations, including children and adolescents living with HIV (C/ALHIV) and HIV-exposed infants (HEIs). This Request for Applications (RFA), issued by the Centre for Clinical Care and Clinical Research Nigeria (CCCRN), pertains exclusively to the implementation of the USG-funded Transforming Health and Resilience of Individuals Through Vibrant Empowerment (THRIVE) project across ten northern states: Adamawa, Borno, Jigawa, Kano, Kebbi, Niger, Sokoto, Taraba, Yobe, and Zamfara.