The Spanish National Research Council (CSIC) is the largest public institution dedicated to research in Spain and the third largest in Europe. Belonging to the Spanish Ministry of Economy and Competitiveness through the Secretary of State for Research, Development and Innovation, its main objective is to develop and promote research that will help bring about scientific and technological progress, and it is prepared to collaborate with Spanish and foreign entities in order to achieve this aim

CSIC plays an important role in scientific and technological policy, since it encompasses an area that takes in everything from basic research to the transfer of knowledge to the productive sector. Its research is driven by its centres and institutes, which are spread across all the autonomous regions, and its more than 15,000 staff, of whom more than 3,000 are staff researchers and the same number again are doctors and scientists who are still training. 

CEBAS (Centro de Edafología y Biología Aplicada del Segura), located in the Murcia Region is the center involved in CLIMATREE and specifically the Irrigation Department. CEBAS-CSIC main expertise is on the field of on-farm irrigation efficiency and on woody crops physiological and agronomic responses to water supply.