Sustainable investing in the water sector – your impact investment with Tareno
Countering water scarcity
Water is the elixir of life on our planet – and an increasingly scarce resource. The growing demand for limited resources makes sustainable water systems one of the most pressing challenges of our time. With the Tareno Global Water Solutions Fund, you invest worldwide in companies that develop and market innovative products and technologies for the efficient use of water.
Our commitment to sustainable water investments
Our sustainable fund not only focuses on economic indicators, but also takes social and environmental aspects into account when selecting companies. The fund takes all three ESG criteria into account and combines economic success with responsible action. As a public fund, it offers you a sustainable investment with a long-term perspective.
Further information on our sustainability approach and the specific impact of our investments can be found in our annual sustainability report or on Tareno’s sustainable investment solutions page.
The characteristics of our sustainable investment
Our fund contributes to the achievement of SDG 6 “Clean water and sanitation”.
Our fund has carried the FNG seal since 2019. For 2025, we received the prestigious award for the second time in a row with the highest rating of 3 stars.
Our fund is classified under Article 9 SFDR and thus meets the highest requirements of the EU Disclosure Regulation.
Our fund was awarded the ISR label by the French government in 2023.
Sustainability plays an important role in the investment process at various levels.
Our fund contributes to Goal 3 of the EU Taxonomy “Sustainable use of water resources”.
How the impact share class of our water fund works
In the impact share class of the Tareno Global Water Solutions Fund, 25% of the management fee is donated to drinking water projects. These donations are used to finance projects worldwide that give people access to clean water.
The donation portion is borne jointly by the investors and Tareno: one third comes from the investors and two thirds from Tareno. Specifically, the management fee for the impact share class is only 0.075% higher than that of our normal share class for institutional investors. This additional contribution from investors is doubled by Tareno. A total of 25% of the management fee is donated.
Impact investing in figures: Clean water thanks to impact share class
Our selected KPIs summarize all projects that have been financed since the launch of the impact share class in January 2021.
CHF 173’000 Spendenbetrag gesamt
17,700 people with access to clean drinking water
166,000 treated liters of water per day
Date as of 30.06.2026
What criteria do we use to select our impact partners?
We work with carefully selected partner organizations to implement drinking water projects. It is crucial that they have experience, local roots and transparent structures.
Important criteria are:
An Overview of Our Impact Partners
Our Impact Partners are crucial to the successful implementation of our drinking water projects. They contribute local knowledge, operational experience, and direct access to the local communities.
Together, we are working toward the goal of improving access to clean drinking water where the need is greatest.
Waterkiosk foundation
The Swiss foundation is committed to promoting access to clean drinking water in rural areas of Tanzania. Although the country has abundant water resources, water quality is often poor in many places, especially outside the cities. The focus is on robust solutions—particularly for schools—that can be implemented in collaboration with the local population and operated on a long-term basis!
Tatirano
Tatirano is working in Madagascar to ensure long-term access to clean drinking water. The focus is on solutions that give women a central role, as they are particularly affected by the water crisis. In many regions of Madagascar, poverty, a lack of infrastructure, and an unreliable water supply make daily life difficult for the population.
ECCA
ECCA supports schools in remote regions of Nepal by providing water filtration systems and training on their safe use. This gives children and teachers access to clean drinking water, while important knowledge about hygiene and water safety is passed on to families and communities. The first joint project was implemented in 2023.
Tamahu Guatemala
For many years, the organization has been active in the predominantly indigenous region of Tamahú, where contaminated drinking water is a major cause of many diseases. In addition to building drinking water supply systems, the organization focuses on training local well-diggers to ensure that the systems can be maintained over the long term.
Medair
Medair is an international humanitarian organization with experience in particularly challenging regions. Our collaboration includes drinking water projects in various regions. Together with other donors, we participate in larger projects where functioning water infrastructure is lacking or has been damaged.
Which projects do we support?
The projects financed should have an impact where the need is particularly great. We therefore focus on regions where access to clean drinking water is limited or not sufficiently guaranteed.
When selecting projects, we pay particular attention to
The following impact projects were implemented
Here you will find an overview of the realized projects that were financed with donations from the impact share class of the Tareno Water Fund.
Program for safe drinking water in Nepal
This project is an ongoing drinking water program in Nepal in cooperation with ECCA. The aim of the project is to provide a long-term supply of drinking water for schools and villages outside the Kathmandu Valley.
Access to a clean drinking water system in Madagascar
The expansion of the Baobab Network is improving access to clean drinking water for the population in the south of Madagascar. Modern water treatment and local infrastructure ensure a sustainable water supply in a region affected by drought.
Improved access to clean drinking water in Syria
The project includes the rehabilitation of water pipes in two districts in Syria, thus ensuring 8,000 people have access to clean drinking water. The impact project, financed by donations from our impact share class, was implemented by our project partner Medair.
Drinking water system Sunrise Education Center Tanzania
In Tanzania, more than 1,500 pupils and students are benefiting from a new drinking water system financed by the Tareno Water Fund’s Impact Share class. A SuMaWe system was installed by our long-standing project partner waterkiosk.
Drinking water system Nah Chuwua Guatemala
In the community of Nah Chuwua in Guatemela, a gravity-based drinking water system was introduced with our project partner “Verein Tamahú Guatemala”, which supplies 90 families with safe water and reduces water-related diseases.
Water treatment plant Tanzania
The second waterkiosk SoWaDis (Solar Water Disinfection) system, financed by donations from our impact share class, supplies a school in Tanzania with clean drinking water and supports the establishment of an independent water supply.
Drinking water system Guatemala
The “Water for Health and Hygiene” project in Guatemala is working with our impact investing partner Tamahú to improve access to clean drinking water and promote hygiene education.
WATA Kit Cameroon
In Koutaba, Cameroon, a newly installed WATA kit system at the Mataket Health Center is improving the water supply. The project was implemented by the Antenna Foundation, one of our project partners for the impact share class.
Water treatment plant Tanzania
The first water project, financed with donations from the impact share class, was completed. A SoWaDis (Solar Water Disinfection) system was installed at a school in Tanzania in collaboration with the Swiss foundation waterkiosk.
Picture credits
The images used on this website in connection with water projects originate from partnerships with non-profit organizations and project partners. We would like to thank these partners for providing the images.
Would you like to find out more about our sustainability strategy or impact projects?
Our fund manager and ESG analyst Katja von Krannichfeldt looks forward to hearing from you.