International Rainwater Harvesting Alliance

Alliance internationale pour la gestion de l'eau de pluie (IRHA)

Alianza internacional para la gestión del agua de lluvia (IRHA)

Organization in Special Consultative Status with the Economic and Social Council of the United Nations - July 2010
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Third pillar

Empowering the Rainwater Harvesting Movement


Consolidation of the IRHA network

It is crucial for the future of the Rainwater Harvesting movement to unify the knowledge and strength of the different organisations involved in it.


The IRHA’s objective is to help them to join forces in order to become more effective. It is looking for the financial support needed for the promotion of its Members’ activities and for the implementation of Rainwater Harvesting projects in their regions.


The first step in this direction is the building up of a large network of Rainwater Harvesters. Becoming an IRHA member means a desire to unite forces with other practitioners worldwide and to work for the acknowledgement of the necessity of better governance and utilisation of rainwater.


Visit Members and Partners to find out more, or click on a membership group below to meet our members:


Honorary Members Organisation Members Individual Members
Private Sector Members Journalists for Rainwater Harvesting Institutional Members



Building synergies with other Rainwater Harvesting organisations

The IRHA has always believed that the best results can only be obtained through collaboration with other actors in the field of water supply and Rainwater Harvesting. The complementary nature of this global team, along with the immensity of the need, is a guarantee for the success of each joint venture.


Since the beginning of its activity, the IRHA has established partnerships with major RWH organisations. With some of them it formulates a Memorandum of Understanding (MoU) in order to define the terms of collaboration, with others, it develops a fair collaboration without any formal framework.


In view of building synergies, the IRHA, jointly with SEARNET, IRCSA, RAIN FOUNDATION and UNEP, established in the Hague, in October 2004, the Rainwater partnership.


Meet our partners…

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