Sustainable investing in the water sector – your impact invest­ment with Tareno

The Tareno Global Water Solutions Fund enables you to invest sustain­ably by speci­fi­cally supporting compa­nies that offer solutions to the incre­a­sing global water shortage. The focus is on innova­tive compa­nies along the entire water value chain: from water treat­ment and efficient water supply to smart irriga­tion systems for agricul­ture and industry. Invest­ments in drinking water rights or water sources are delibera­tely excluded. Our fund acts as an ideal sustainable invest­ment and, with its unique impact share class, offers the oppor­tu­nity to make a direct and measurable contri­bu­tion to impro­ving drinking water supplies in regions with high water stress.
Bild mit Wald und Wasser von oben aufgenommen

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.

Bild Rhein in Schlucht mit grünem Wald. Hintergrundbild für Investment Insight

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”.

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Impact share class: investing with a measurable impact

We have launched the Impact share class for all those who want to make a direct and measurable impact in addition to a sustainable invest­ment in the water sector. This unique share class of the Tareno Global Water Solutions Fund gives investors the oppor­tu­nity to parti­ci­pate directly in specific drinking water projects.

The focus is on projects that make a measurable contri­bu­tion to SDG 6 “Clean water and sanita­tion”. The aim is to create long-term solutions by estab­li­shing local struc­tures, invol­ving the popula­tion and develo­ping concepts for the mainten­ance and opera­tion of the facili­ties.

Invest in the impact share class now

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.

Impact Report 2025

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:

Many years of exper­tise with water projects
Employees and project managers on site
Good knowledge of local condi­tions and legal requi­re­ments
Close coope­ra­tion with local autho­ri­ties
Active invol­vement of the local popula­tion
Low admini­stra­tive expense ratio
Focus on long-term and sustainable impact
Trans­pa­rent commu­ni­ca­tion and compre­hen­sible reporting

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.

The impact share class of the Tareno Water Fund combines a convin­cing invest­ment approach with measurable impact.
Alessandro Poletti
Head of Research & Advisory, acrevis Bank AG
Alessandro Poleetti acrevis Bank AG Investor Impact Anteilsklasse Tareno Global Water Solutions Fund

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

Supply of clean drinking water in regions affected by water stress
Long-term and sustainable effect
Invol­vement and training of the local popula­tion
Clear plan for mainten­ance and servicing
Measurable impact: number of benefi­ci­a­ries and liters of water provided
Prefe­rence is given to projects that we can finance independently

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.

Portrait Katja

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.