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Tulip Table Top

A basic gravity-fed water filter delivering safe water to its users, free of bacteria and protozoa

October 2020
September 2023
Gallery Tulip Table Top 1
Gallery Tulip Table Top 1


The Tulip technology, the candle filter, is based on gravity filtration, made of diatomaceous earth, combined with silver and activated carbon. This technology ensures that highly contaminated water becomes safe to drink for a sustained period. There is a removal of harmful bacteria of 99.9%, turbidity removal of 99% and protozoa removal of 99,9%. This helps to prevent waterborne diseases like diarrhea, cholera, giardia, cryptosporidiosis, typhus, and schistosomiasis. The solution is available for the end-user through partnerships in currently 25+ countries. Partners are supported in various ways but mainly through product certification, end-to-end importation services, payment solutions in local currencies and carbon credit programs. In a growing number of countries, the end-user is offered micro loans or rent-to-own options.

Label Date September 8, 2023
From Netherlands
Maturity stage Medium and large scale commercialization
Looking For Network, Visibility, Partners, Credibility

The environmental benefits

  • There are over 600.000 Tulip water filters distributed worldwide
  • The Tulip Technology is available in 25+ countries
  • An alternative to boiling water which requires non-renewable biomass (kerosene, charcoal, wood)
  • As the use of the water filter does not need an external energy source it is effective in preventing deforestation

The Financial benefits

  • The 'ROI' for the end-user is calculated at almost 300% per year (for every dollar invested a social impact worth of 2.95 dollars is generated, according to an SROI study)
  • Each importer/agent employs at least 2 employees for selling water filters and advocating the solution to the population, local government and other stakeholders

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile

Basic Water Needs

Excellent Basic Household Water Filters

View company profile Solution website
Headquarters Leidsekade 12, 1016 CW Amsterdam, Nederland

Networking Partner


Waterpreneurs is a global “for-impact organisation”, supporting the scaling-up of impact investments financing the growth of WASH enterprises operating in developing countries, and respecting human rights. Waterpreneurs brings extensive knowledge of the water and sanitation entrepreneurial sector, impact investing and facilitation of marketplaces.

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Solutions Associated 30
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Basic Water Needs has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.