Map of the organizations and institutions involved in drought - with special emphasis in urban and irrigation water supply - that work on: (i) the collection, processing, storing and disposing of meteorological and hydrological data; (ii) drought preparedness and mitigation; and/or (iii) on water management. This chapter contains a description of the legal Spanish framework related to drought situations, a revision of the institutions and governing bodies involved in the drought management processes and the interactions between them. Finally, the mapping of these institutions provides a useful basis for the evaluation of the strengths and weaknesses of the drought management system in Spain. In order to complete the analysis there is also a description of case studies where the decision making processes are explained, and another section of interviews with stakeholders of the water management environment that are used to validate this mapping.