Wetsus is a European centre of excellence for sustainable water technology, based in Leeuwarden, the Netherlands. It brings together companies, universities and research institutes to develop knowledge and innovation for the water sector. The centre’s collaborative platform includes 109 companies and 28 universities, with research spanning multiple themes and supported by specialist research facilities.

Wetsus offers organizations opportunities to participate in its platform and work with researchers on water-related challenges. Its activities include research projects, scientific publications and innovation initiatives, alongside support for entrepreneurship and the development of new technologies. The centre also contributes to education and talent development through PhD positions, thesis and internship projects, the Young Wetsus Talent Program, an MSc in Water Technology and a Water MBA.

To share knowledge and connect the water technology community, Wetsus organizes events, webinars and the European Water Technology Week. It also participates in European projects and provides information through publications, books and news.