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Thank you for visiting the WSI e.V. website!


We hope you enjoy browsing our website and that you find a lot of useful information. We invite you to join our global activities. We look forward to sharing our knowledge in order to increase awareness about water and sanitation in the world. We hope that an understanding of these issues will inspire you to take part in making our world a better place.


Water Solutions International (WSI e.V.) is a non-profit, non-governmental organization operating in the water and sanitation sector in developing and emerging countries. We are a reference point for private and public stakeholders from the water and sanitation sector who wish to cooperate with experienced water professionals.

WSI members span the spectrum between research, planning and design, implementation and practice, covering most facets of the water cycle. They have been working in numerous countries all over the world, based on education and working experiences in Europe.

Through our members’ experience in research, practice, regulation, industry, consulting, operation, supervision and manufacturing, we are in an excellent position to help creating innovative, pragmatic and sustainable solutions to water-related challenges.

Our members are individuals. Corporate or institutional memberships are not possible, which ensures independence from commercial interests and a high degree of flexibility.