Top 28 Water Saving startups

Updated: Feb 26, 2026
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These startups develop new water-saving technologies such as membrane bioreactors, advanced oxidation processes, forward osmosis, smart home water monitoring and leak protection systems, home water recycling appliances, etc.
1
Xatoms
Country: Canada | Funding: $2.5M
Xatoms has created a photocatalyst - a light-activated chemical - that can remove bacteria, viruses, chemicals, and heavy metals from polluted water. The company is using AI and quantum chemistry to find new water-treatment chemicals.
2
Gradiant
Country: USA | Funding: $442.4M
Gradiant is a solutions provider and developer of cleantech water projects for advanced water and wastewater treatment.
3
Haber
Country: India | Funding: $70.9M
Haber is an integrated platform for process, utilities and water systems driving visibility.
4
Orbital Systems
Country: Sweden | Funding: $69.9M
ORBITAL SYSTEMS is a Swedish clean-tech company that develops a water recycling technology to be used in domestic appliances.
5
Olea Edge
Country: USA | Funding: $50.6M
Olea has developed a proprietary platform that helps water utility companies conserve and maintain local water supply. Their AI technology connects to the internet to provide quick, accurate results along with the ability to recommend solutions should a problem arise.
6
WINT
Country: Israel | Funding: $50M
WINT is a water intelligence system that helps save water, reduce consumption, and prevent water leaks.
7
Capture6
Country: USA | Funding: $42.2M
Capture6 is a direct air capture start-up leveraging its technology to support climate resilience and industrial decarbonization.
8
Genesis Systems
Country: USA | Funding: $20.8M
Genesis Systems provides methods for generating sustainable water resources and transforming the environment.
9
Nebia
Country: USA | Funding: $7.8M
Nebia is making products the world needs, starting with the shower. Premium experience, innovative design and 70% water savings. Nebia’s proprietary H₂Micro™ technology atomizes water into millions of micro droplets, making less water feel like so much more.
10
Nexus eWater
Country: Australia | Funding: $6.6M
Nexus eWater is a home water recycling platform that develops solutions converting grey water for home water and energy use.
11
TaKaDu
Country: Israel | Funding: $6M
TaKaDu is a water network management company offering water utilities to improve network efficiency and planning decisions.
12
EF Polymer
Country: Japan | Funding: $4.5M
EF Polymer is an agricultural firm that provides products & sustainable input solutions to save water and fertilizer usage. It manufactures super absorbent polymer made from biowaste from juice shops that reduces the irrigation water & fertilizer requirement and help to get more yield without affecting the soil and crop.
13
Uravu Labs
Country: India | Funding: $4.3M
Uravu Labs developed renewable water technology with inexhaustible atmospheric moisture and renewable energy to produce drinking water.
14
Hydraloop
Country: Netherlands | Funding: €4M
Hydraloop develops home water-recycling system. It allows to use the recycled water from the shower, bath and washing machine for toilet flushing, the garden and washing machine.
15
LeapFrog Design
Country: USA | Funding: $1.7M
Developer of a sustainable, scalable system for treating and recycling household greywater using plants and natural materials.
16
Remote Waters
Country: Chile | Funding: $795K
Remote Waters provides water purification systems with low O&M and fast installation for communities.
17
Upstream Tech
Country: USA | Funding: $265K
Upstream Tech conserving freshwater by powering informed water market transactions.
18
Gybe
Country: USA | Funding: $120K
Gybe is a startup that utilizes satellite imagery to target water insecurity and other related issues affecting communities around the world. Their ground sensors work in tandem with their exclusive technology, making it easier for communities to monitor things like sediment flows and algae blooms so they can provide clean water to the people living nearby.
19
Gen3Bio
Country: USA | Funding: $20K
Gen3Bio has proprietary technology that redirects waste algae from an environmental hazard into profitable environmentally friendly products fully integrated into the circular economy. This is accomplished by using a proprietary efficient low-cost enzymolysis process to extract fats, sugars and proteins to produce specialty chemicals.
20
FGWRS
Country: France
FGRWS intends to recycle 80% of the domestic grey waters.
21
Airwater
Country: South Africa
Make your own water from the air at home - know where your water comes from!
22
NUFiltration
Country: Israel
NUFiltration enables water purification by sterilised medical devices. It's technology is based on a worldwide granted patent which provides for the reuse of sterilized medical devices - UltraFiltration filters at 3.3 nm nominal filtration rate - in the field of water treatment.
23
Flotaa
Country: India
Flotaa is a watertech startup that offers end-to-end solutions, including IoT-enabled hardware and a robust SaaS platform. Its AI algorithms provide actionable insights for predictive maintenance, water quality monitoring, consumption optimization, and leakage detection.
24
CLEANR
Country: USA
CLEANR filtration technology is the first of its kind to filter the smallest particles, last longer in between maintenance cycles, to be fully mechanical, and incredibly easy to clean.
25
SmarterHomes
Country: India
SmarterHomes creats IoT water meter, WaterOn, that measures the number of units used by each apartment. It provides real-time information about the apartments' water meters, individual consumption, trends, and billing status.
26
Watergen
Country: Israel
Watergen is a patented technology that creates high-quality drinking water out of the air for people everywhere.
27
eWater Services
Country: UK
eWater Services is aiming to make sure that those in remote locations don’t break the bank for their water supply. They’ve created an app that lets users find their clean water taps within minutes.
28
Water Warriors
Country: USA
Water Warriors are bringing new filtration technology to the startup scene. Their Poseidon pellets are an innovative solution to absorbing harmful chemicals like phosphorus and ammonia. They come in two sizes: mesh bags for smaller bodies of water and large tubular bags for bigger bodies like lakes and creeks.
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Marjana Bačić
Editor: Marjana Bačić
Marjana Bačić is a senior editor for RecyclingStartups. She has has more than 5 years experience covering the recycling industry. Marjana graduated from University of Belgrade, where she edited Recycling and Sustainable Development Journal. She has helped several non-profit organizations dedicated to promoting environmental education and sustainability. She also participates in beach clean-up initiatives and advocates for sustainable practices in local businesses. In her free time, Marjana enjoys hiking in the scenic Montenegrin countryside, practicing yoga for mindfulness, and experimenting with plant-based recipes in her kitchen. You can contact Marjana at marjanabacic(at)recyclingstartups(dot)com