The International Water Association is the network of water professionals striving for a world in which water is wisely, sustainably and equitably managed.

Drawing exceptional professionals from more than 140 countries, the membership of the International Water Association (IWA) brings together scientists, researchers, technology companies, water and wastewater utilities, and wider stakeholders involved in water management.

As the largest membership association for the global water sector, the Association was launched in its current identity in 2000, building on a 75-year heritage of connecting water professionals around the world. IWA is an international reference for the water and sanitation industry.

The IWA membership communities contribute and develop the IWA Agendas. Meet us at the IWA World Water Congress & Exhibition, the IWA Water and Development Congress & Exhibition and our Specialist Groups Conferences worldwide. IWA is science-driven and sets the agenda with the publication of 12 scientific journals and 40+ books per year by IWA Publishing.

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From the IWA network around the world.
December 21, 2023
IWA is excited to launch the call for ‘Expressions of Interest’ to host its Water and Development Congress & Exhibition 2025. Expressions of Interest ar...
December 21, 2023
IWA is introducing a revised membership fee structure for Individual members. This will see the Individual fee structure change from being a two-tier structure ...
December 20, 2023
Last week saw the International Water Association reach a new landmark in the shape of its most successful Water Development Congress & Exhibition to date. ...
December 20, 2023
The International Water Association (IWA) is delighted to announce the winners of the inaugural Inclusive Urban Sanitation Champions programme, revealed in Kiga...

Blog Posts

Opinion and insights on the critical challenges facing the water sector.
As cities in low- and middle-income countries expand rapidly, sanitation infrastructure struggles to keep pace, with nearly 700 million people still lacking eve...
November 30, 2023
As the world turns its attention to COP28, it's essential to recognise that the fight against climate change is deeply intertwined with another global crisis: w...
November 17, 2023
This World Toilet Day, we’re spotlighting innovative and unconventional solutions to accelerate change and achieve universal access to sustainable sanitation ...
November 3, 2023
Water utilities are at the forefront of safeguarding public health, safety, and the environment, and play a critical role in building community resilience. Many...

IWA Thought Leadership

Recognised for their unique and significant long-term contributions to advancing water science and management


Responding to global water challenges, IWA progressive agendas support sustainable urban and basin-related water solutions.
Skanderborg Forsyning

The Danish water utility Skanderborg Forsyning affirms that when it comes to water security in a changing climate, using nature-based solutions at the local level was never a question. Climate change projects are an opportunity to adapt using nature to deal with increased rainfalls and prevent the flooding of urban areas.

IWA Stories: Fionn Boyle

Fionn is a project engineer focused on smart water systems and a member of the Institute of Water in the UK. At Anglian Water Services, he serves on the Future Leaders board.
During the video, Fionn gives a snapshot of his journey so far in the water sector and the benefits it has afforded him.

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The Source Magazine

The latest from the International Water Association Magazine
November 06, 2023
Dr Samuel HK Chui explains how using wastewater surveillance in Hong Kong to help manage the spread of COVID-19 was [...]
November 02, 2023
A focus on conventional, centralised systems has failed to deliver adequate access to sanitation. Kala Vairavamoorthy makes the case for [...]
November 02, 2023
The 2023 IWA Water and Development Congress & Exhibition is approaching fast and will help advance options for low- and [...]
November 02, 2023
With the latest IWA Digital Water Summit taking place in November, Prabhushankar Chandrasekeran explains why AI and machine learning are [...]


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