- the SP/PANGIRE, the General Directorate of Water Resources (DGRE), the National Meteorological Directorate (MND), the General Directorate of Water and Forests (DGEF) which will better take in hand their missions and sovereign attributions within the framework of the IWRM process as well as the knowledge and monitoring of the natural resources of the Mekrou sub-basin and its area of influence in Niger ;
- the Water Users Associations (WUAs) of the villages and the 3 CLEs of the 3 communes of the Mekrou sub-basin in Niger, the CREAs of Tillabéry and Dosso which will be able to function as multi-stakeholder consultation frameworks for planning and implementation of IWRM in the Mekrou sub-basin in Niger and in the country. The same applies to the 2 CGEs of the Niger-Liptako River and Dallols AdderDoutchi-Maggia and the Water Agency of the sub-basin as soon as they are set up during the Action implementation period;
- Universities (at the national level and in the 2 regions) and other research structures including the National Institute for Agronomic Research of Niger (INRAN), the Training Centre for Water and Sanitation Techniques (CFTEA), which will have the data required to advance research on the natural resources of the project area while responding to the related concerns of the institutional stakeholders;
- the communes, which will best exercise their competences within the framework of decentralization;
- the private sector to accompany the IWRM process through various services and the financing of interventions as well as civil society organisations for the structuring, organisation and capacity building of the users of natural resources in the project area. The private sector and CSOs will benefit from an improved institutional and organisational set-up in the water, sanitation and environment sectors;
- NBA and its national focal structure for Niger and the Executive Secretariat to ensure the coherence of the project implementation with the Shared Vision and Objectives of the BPDP and the Basin Water Charter.