PUBLIC ADMINISTRATIONS
  MINISTRY OF AGRICULTURE, FOOD AND ENVIRONMENT
Directorate General for Water
Sub. General for Planning and Sustainable Use of Water
Sub. General for Economic Planning
Sub. General for Infrastructure and Technology
Sub. General for the Integrated Management of Public Water Supply
Directorate General for Rural Development and Forestry Policy
Sub. General for Planning and Coordination
Sub. General for the Modernisation of Agricultural Holdings
Sub. General for Promotion of Rural Development
Sub. General for Silviculture and Forestry
Sub. General for Irrigation and Water Economy
Directorate General for Quality, Environmental Assessment and Natural Environment
Sub. General for Environmental Assessment
Sub. General for Wastes
Sub. General for Air Quality and Industrial Environment
Sub. General for the Natural Environment

GUADIANA RIVER BASIN AUTHORITY

TAJO RIVER BASIN AUTHORITY

GUADALQUIVIR RIVER BASIN AUTHORITY

SEGURA RIVER BASIN AUTHORITY

EBRO RIVER BASIN AUTHORITY

 DUERO RIVER BASIN AUTHORITY

   ANDALUSIA ENVIRONMENT AND WATER AGENCY

EXTREMADURA AUTONOMOUS GOVERNMENT - DEPARTMENT FOR AGRICULTURE, RURAL DEVELOPMENT, ENVIRONMENT AND ENERGY

PROVINCIAL COUNCIL OF BIZKAIA - DEPARTMENT OF THE ENVIRONMENT

AGÉNCIA BALEAR DEL L´AIGUA I DE LA QUALITAT AMBIENTAL

BASQUE WATER AGENCY

PUBLIC COMPANIES
 TRAGSA

 NAVARRA DE INFRAESTRUCTURAS LOCALES S.A.

PRIVATE AGENCIES AND/OR COMPANIES
 PROES CONSULTORES S.A

 ACSA. OBRAS E INFRAESTRUCTURA, S.A.

 DYTRAS S.A

 INECO S.A

 ACSA AGBAR CONSTRUCCIÓN, S.A.

 ISOLUX WAT S.A.

 AZVI S.A.

 HERMANOS DÍAZ REDONDO, S.A

 DRAGADOS S.A.

 ANBIOTEK, S.L.

 ALIDA, Ingeniería del Medio, S.L