Collaboration for a healthy water cycle

Aa & Maas manages water levels, quality and flood resilience in Southeast Netherlands. Every day, they maintain and inspect dikes, purify 300 million litres of water, and ensure safe, sufficient, and clean water. Their top priority is to contribute to the safety, health, and well-being of the people in their region.

Acacia Water is a Dutch consultancy that develops sustainable groundwater and climate adaptation solutions, especially in drylands. With a strong foundation in hydrogeology, they work on aquifer recharge, nature-based solutions, and water security for agriculture, ecosystems, and communities.

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AGV is the water authority behind Waternet and co-founder of World Waternet. As the only Dutch authority managing the full urban water cycle, AGV contributes hands-on expertise in flood defence, clean water, and wastewater treatment to support global WOPs and long-term sustainability.

Auxfin develops digital platforms that enable rural communities in developing countries to access financial services, health and WASH education, and local governance tools. Their inclusive technologies support data-driven development and help bridge the rural-urban divide in service access.

A faith-based community in Ghana involved in social development and education. Their WASH work supports public health and dignity in underserved communities through local leadership, outreach and behavioural change.

Deltares is a globally recognised Dutch research institute for water, subsurface and infrastructure. It develops open-source models, tools and knowledge to improve climate resilience, disaster risk reduction and sustainable water infrastructure worldwide.

Embassy of the Earth empowers communities to lead regenerative development. It works with local stakeholders on nature-based water solutions, ecosystem restoration and climate resilience. Their approach blends indigenous wisdom with systems thinking and long-term stewardship.

Waterschap Hollandse Delta manages water safety, quality and infrastructure in the southwest of the Netherlands. With a focus on climate adaptation, sustainable agriculture, and wastewater treatment, they contribute practical expertise to international partnerships.

Hunze & Aa is a regional water authority in the northeast of the Netherlands. They manage rivers, dikes and wastewater systems to protect against floods and ensure clean water. Internationally, they promote adaptive water governance and wetland restoration.

Invest International supports Dutch impact abroad by financing water, energy, and climate solutions. They provide blended finance and technical assistance to public and private partners, enabling bankable water projects in emerging markets.

Kinara is a grassroots initiative in Kenya that improves access to clean water and sanitation for rural households and schools. With a strong focus on community empowerment and sustainability, it provides practical WASH solutions that directly improve health, dignity, and education.

KNMI is the Dutch national institute for weather, climate and seismology. It provides accurate forecasts, climate models and early warnings that help water authorities worldwide to anticipate droughts, floods, and extreme weather – essential for adaptive and climate-smart water management.

This Dutch water authority safeguards water safety and clean water in the Northern Netherlands. With a strong focus on sustainability and regional partnerships, it works on flood protection, climate adaptation, and resilient water ecosystems.

Waterschap Drents Overijsselse Delta manages water systems, flood protection and urban drainage in the east of the Netherlands. With expertise in adaptive planning and stakeholder engagement, it contributes to resilient and inclusive water governance.

Rijkswaterstaat is the Dutch national water agency, managing rivers, dikes, and major infrastructure. Internationally, it shares expertise on integrated water systems, hydraulic engineering, and climate resilience to support sustainable development.

One of the oldest water boards in the Netherlands, Rijnland manages flood defences, wastewater and climate adaptation in urban and low-lying areas. It combines centuries of experience with forward-thinking solutions to secure water safety and quality.

Waste is a Dutch NGO specialising in circular sanitation and inclusive WASH solutions. It works with local entrepreneurs, financial institutions and governments to improve faecal sludge management and promote safe, sustainable sanitation services for all.

Waterschap De Dommel manages water safety, wastewater, and nature in the southern Netherlands. It works closely with farmers and urban partners on climate adaptation and biodiversity. Internationally, it shares its governance and circularity expertise.

This regional authority manages water levels, quality and infrastructure across rural and peatland areas in Drenthe. It focuses on climate resilience, nature-based solutions and innovative sludge treatment techniques.

This Dutch water authority manages water and sanitation across the central Netherlands. It’s a front-runner in circular wastewater treatment, energy recovery and climate-proof cities, sharing its innovations through international partnerships.

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WWF protects freshwater ecosystems through conservation, advocacy and sustainable water management. It partners with governments and companies to safeguard rivers, wetlands and biodiversity while ensuring water access for people and nature.

Waterschap Zuiderzeeland manages water systems in the reclaimed polders of Flevoland. Its work focuses on safety, innovation, and urban-rural balance. The water board shares knowledge on climate-resilient water control and wastewater reuse internationally.

AIWW is a global platform connecting cities, utilities, and innovators to tackle complex water challenges through collaboration. It brings together stakeholders to co-create solutions for resilient cities, circular water systems, and inclusive water governance.

The Allwaters Consortium is a public-private coalition of Dutch water sector leaders working to address global water and climate challenges. It aims to scale integrated water solutions through collaboration, innovation, and the shared values of resilience, inclusion, and sustainability.

Aquafed is the International Federation of Private Water Operators, representing companies committed to delivering sustainable, affordable, and regulated water services. It engages in policy dialogue, capacity-building, and advocacy for professional public-private cooperation in water provision.

AquaPublic promotes sustainable public water services by encouraging collaboration between municipalities, water operators and civil society. The initiative supports knowledge exchange and defends the right to water through policy engagement and community-driven approaches.

Berlin Wasserbetriebe is Germany’s largest municipal water and wastewater utility, serving over four million people. With a focus on innovation, circularity and environmental protection, they also engage in international partnerships to exchange knowledge on resilient urban water systems.

C40 is a network of nearly 100 major cities committed to fighting climate change. It supports water resilience, sustainable urban drainage, and clean infrastructure, helping mayors and planners transform cities for climate safety and inclusivity.

HOFOR is the Greater Copenhagen utility for water, energy and climate solutions. It pioneers circular and climate-adaptive approaches in urban areas and collaborates internationally to exchange knowledge on drinking water supply, wastewater, and flood resilience.

Domoreforwater is a Dutch advocacy platform amplifying public awareness, youth engagement and investment in global water solutions. It translates technical challenges into urgent, people-driven calls to action.

Dutch Water Authorities (Unie van Waterschappen) represents all 21 regional Dutch water boards. They lead the Blue Deal programme and co-lead WaterWorx, offering decades of technical, policy and governance expertise in integrated water resources management (IWRM).

Project involvement:

• All Blue Deal projects

GWI is a leading information platform providing data, analysis and insight into the global water market. It tracks trends in finance, technology and policy, helping utilities, investors and governments make informed decisions about water infrastructure and innovation.

The UCL-based IIPP rethinks how public value is created through innovation. Their work influences public-private collaboration in water, climate and infrastructure. IIPP provides thought leadership on mission-driven governance and sustainability transitions.

IWA is a global network of water professionals committed to sustainable and innovative water management. Through research, events and knowledge sharing, IWA accelerates solutions for climate resilience, water quality, and sanitation access.

Jotem Water Solutions is a Dutch company that specialises in the design and engineering of decentralised water treatment systems. Their modular, plug-and-play solutions deliver safe drinking water in industrial, humanitarian and off-grid settings.

Together with World Waternet, Jotem co-developed the BlueElephant – a robust, mobile water treatment unit designed for crisis-prone regions. The BlueElephant is now operational in the Palestinian Territories, where it ensures reliable access to clean water in communities affected by infrastructure challenges and climate stress. This innovation exemplifies how public-private collaboration can turn technical ingenuity into tangible, life-saving impact.

This network unites the world’s most innovative water utilities, providing a platform to benchmark, inspire and share cutting-edge practices in water supply and wastewater management. Members commit to continuous improvement and serve as role models for global water leadership.

The National Water Traineeship empowers young Dutch professionals to tackle real-world challenges across the water sector. By combining training and practical work, it cultivates future leaders who contribute fresh perspectives to Dutch and international water initiatives.

NWP connects Dutch water expertise to global challenges. It fosters collaboration between governments, NGOs, businesses and knowledge institutions, helping to position the Netherlands as a leader in smart, sustainable, and inclusive water solutions worldwide.

NYC DEP operates one of the world’s largest drinking water and wastewater systems. It safeguards public health and environmental quality for over 8 million people and shares its expertise on resilience, green infrastructure and utility management internationally.

Nijhuis Industries develops smart, decentralised water treatment technologies with a focus on circular economy. Their systems promote water reuse, resource recovery and energy efficiency in both industrial and humanitarian settings.

Nuffic is the Dutch organisation for internationalisation in education. It supports knowledge exchange and capacity building through scholarships, training, and institutional partnerships, including many in the water sector.

SIAAP treats wastewater for over nine million people in the Paris region. It is recognised for its cutting-edge technology, research, and sustainability strategies to improve water quality and reduce climate impact in major cities.

PUB is Singapore’s National Water Agency and a global leader in water reuse and digital water systems. It manages the entire water cycle, from rainwater harvesting to NEWater technology, and regularly shares its expertise with international utilities and city networks.

Swimmable Cities is an initiative that promotes the restoration of urban rivers for recreation, biodiversity and community wellbeing. It links clean water goals with urban development, making waterways safe, accessible, and inspiring symbols of climate resilience.

The University of Amsterdam provides research and academic expertise on topics like climate adaptation, environmental governance and urban resilience. It collaborates with World Waternet on knowledge exchange and capacity development.

VEI is a non-profit organisation founded by Dutch water utilities Vitens and Evides. It strengthens public water operators in Africa, Asia and Latin America through peer partnerships, supporting inclusive access, technical reliability and utility governance. A key implementing partner in WaterWorx programmes.

Vewin is the national association representing Dutch drinking water companies. It advocates for safe, affordable, and sustainable drinking water through policy influence, sector coordination and international cooperation. Vewin supports knowledge exchange, regulation, and innovation in water supply systems both in the Netherlands and abroad.

Water Europe is a multi-stakeholder platform advocating for a water-smart society in Europe. It promotes innovation, circularity, and climate resilience by connecting research, business and policy. Its network shapes the future of sustainable water systems.

Waterproef is a public laboratory for water quality monitoring and analysis, serving several Dutch water authorities. It supports innovation in wastewater treatment, environmental monitoring and process control, including international projects in fragile contexts.