Tender for 621A-25-CB06 External audit service provision for the justification of 19 grants from the State Research Agency (AEI) "Strategic projects oriented towards ecological transition and digital transition", funded by the European Union, with Next Generation-EU Funds within the framework of the Recovery, Transformation and Resilience Plan. Based on: AEI Type USC-2025-0025:621A-25 Framework Agreement for the provision of external audit service for the justification of grants or subsidies received by the University of Santiago de Compostela (USC) USC-2025-0025:621A-25 Framework Agreement for the provision of external audit service for the justification of grants or subsidies received by the University of Santiago de Compostela (USC)