Instituto Geológico y Minero de España (IGME): Institute ascribed to the Science and Innovation Ministry. It is the main organism in Spain focused in the Earth research and, particularly, in groundwater hydrology. The IGME headquarters in Murcia are the referent in groundwater studies in the Segura River Catchment Area.

Comunitat d'Usuaris d'Aigüa de la vall baixa i Delta del Llobregat (CUADLL): Non-profit organization that aims to protect and preserve the aquifers from the low meadow and delta of the Llobregat river. They have experience on aquifer’s surveillance, modelling and recharge.

Asociación Catalana para la Innovación y la internacionalización del sector del agua (CWP): Non-profit association that encompasses companies and research centres operating in the field of sustainable use of water. It aims to improve the competitiveness of these companies.

Comunidad de Regantes del Campo de Cartagena (CRCC): Public law organism in charge of the distribution of water for irrigation in the area of Campo de Cartagena. It has competences in the management and distribution of different water sources in the zone.

Service Géologique National (BRGM): Governmental organization. It is one of the main actors in the development of sustainable water management solutions. It studies the functioning of hydrological systems, new resources, impact of climatic change, numerical modelling, and the elaboration of decision-making support instruments related to the management of hydrological resources.

Pôle mondial de compétitivité eau (Aqua-Valley): Water cluster that encompasses stakeholders of water sector, in order to provide support to innovation and international development.

Àguas do Ribatejo (AR): Organization responsible for water supply in 7 municipalities in Portugal. It has experience in the development of Watershed Management Plans along with regional and national authorities.

Instituto Superior de Agronomía (ISA-LEAF): Education and research institution in the field of Environment. Among its research lines, there are groundwater monitoring, nitrate pollution, water retrieval and mitigation of climatic change.

Associação Parceria Portuguesa para a Água (PPA): Water entities association. Integrated by public and private companies, education and research institutions, professional associations, and government agencies. It promotes the innovation through cooperation.