# New Water Technology Startups Founded Since 2020: Market Map 2026 (32 Companies) > 32 water technology startups founded in 2020 or later, mapped in 3 segments, best-funded first: $185M raised. Updated nightly. Source: https://millionrounds.com/market-maps/new-water-technology-startups-market-map (Millionrounds; every figure on the page links to its filing or article) ## Wastewater 18 - [Walnut](https://millionrounds.com/company/walnut) - [Oxyle](https://millionrounds.com/company/oxyle) - [Seloxium](https://millionrounds.com/company/seloxium) - [USA Water Holdings](https://millionrounds.com/company/usa-water-holdings) - [cimico](https://millionrounds.com/company/cimico) - [RLcore](https://millionrounds.com/company/rlcore) - [Green Steel Environmental](https://millionrounds.com/company/green-steel-environmental) - [NPHarvest](https://millionrounds.com/company/npharvest) - [Nyad](https://millionrounds.com/company/nyad) - [DigitalPaani](https://millionrounds.com/company/digitalpaani) - [VisioNing](https://millionrounds.com/company/visioning) - [Pipeline Organics](https://millionrounds.com/company/pipeline-organics) - [Metal Morph](https://millionrounds.com/company/metal-morph) - [Ainwater](https://millionrounds.com/company/ainwater) - [Rise Reforming](https://millionrounds.com/company/rise-reforming) - [Aquature](https://millionrounds.com/company/aquature) - [WaiHome](https://millionrounds.com/company/waihome) - [Algbio](https://millionrounds.com/company/algbio) ## Treatment and purification 11 - [MaverickX](https://millionrounds.com/company/maverickx) - [blue activity](https://millionrounds.com/company/blue-activity) - [Jolt Electrodes](https://millionrounds.com/company/jolt-electrodes) - [Watercycle Technologies](https://millionrounds.com/company/watercycle-technologies) - [Salinity Solutions](https://millionrounds.com/company/salinity-solutions) - [KMX Technologies](https://millionrounds.com/company/kmx-technologies) - [Anodine](https://millionrounds.com/company/anodine) - [Porelio](https://millionrounds.com/company/porelio) - [FUST Lab](https://millionrounds.com/company/fust-lab) - [NanobOx](https://millionrounds.com/company/nanobox) - [NSS Water](https://millionrounds.com/company/nss-water) ## Desalination 3 - [Flocean](https://millionrounds.com/company/flocean) - [MediSun Energy](https://millionrounds.com/company/medisun-energy) - [ChloBis Water](https://millionrounds.com/company/chlobis-water) ## Segment by segment ### Wastewater 18 startups · $100M raised - [**Walnut**](https://millionrounds.com/company/walnut) Walnut is a manufacturing firm that provides wastewater system design and manufacturing services, as well as nutrient recovery surveys. United States $35M - [**Oxyle**](https://millionrounds.com/company/oxyle) OxyleI is a developer of a novel technology to degrade hazardous micropollutants from wastewater, such as pesticides, chemicals etc. Switzerland $16M - [**Seloxium**](https://millionrounds.com/company/seloxium) Seloxium is a University of Oxford spin-out company revolutionising the mining, refining, and recycling sectors by selectively ext United Kingdom $16M - [**USA Water Holdings**](https://millionrounds.com/company/usa-water-holdings) USA Water Holdings provides water and wastewater operations, infrastructure development, and maintenance services. United States $10M - [**cimico**](https://millionrounds.com/company/cimico) Cimico is a biotechnology startup based in San Sebastián, Spain, founded in 2019. Spain $7.9M - [**RLcore**](https://millionrounds.com/company/rlcore) RLCore is a deep-tech AI company based in Edmonton, Canada, specializing in industrial automation with a focus on water and wastew Canada $5.0M - [**Green Steel Environmental**](https://millionrounds.com/company/green-steel-environmental) Green Steel Environmental is a wastewater treatment company located in Boulder, Colorado. United States $1.7M - [**NPHarvest**](https://millionrounds.com/company/npharvest) NPHarvest is a company with expertise in organic waste management, wastewater treatment, and nutrient recovery. Finland $1.4M ### Treatment and purification 11 startups · $58M raised - [**MaverickX**](https://millionrounds.com/company/maverickx) MaverickX is a chemical technology company focused on developing advanced chemistries for natural resource extraction in the oil & United States $19M - [**blue activity**](https://millionrounds.com/company/blue-activity) Blue Activity GmbH is a CleanTech startup based in Heidelberg, Germany, founded in 2019. Germany $9.8M - [**Jolt Electrodes**](https://millionrounds.com/company/jolt-electrodes) JOLT is supplying next-generation activated electrodes & protective coating solutions for hydrogen & water treatment electrolysis Spain $6.5M - [**Watercycle Technologies**](https://millionrounds.com/company/watercycle-technologies) Watercycle Technologies specialized in the development of high-yield, low-cost mineral extraction, and water treatment systems. United Kingdom $5.6M - [**Salinity Solutions**](https://millionrounds.com/company/salinity-solutions) Salinity Solutions is an engineering technology startup based in Birmingham, UK, focused on innovative clean-tech solutions for th United Kingdom $5.1M - [**KMX Technologies**](https://millionrounds.com/company/kmx-technologies) KMX Technologies provides membrane distillation technology to separate and recover valuable chemicals and water treatment. Canada $3.0M - [**Anodine**](https://millionrounds.com/company/anodine) Anodine is a French deep-tech startup based in Grenoble, founded in 2024. France $2.9M - [**Porelio**](https://millionrounds.com/company/porelio) Porelio is a Berlin-based deeptech startup specializing in advanced materials for industrial separation, purification, and water treatment. Germany $2.7M ### Desalination 3 startups · $26M raised - [**Flocean**](https://millionrounds.com/company/flocean) FLOCEAN is a Norwegian clean-tech startup based in Oslo, founded in 2024. Norway $23M - [**MediSun Energy**](https://millionrounds.com/company/medisun-energy) MediSun Energy is a Singapore-based company that specializes in integrated brine management and clean-energy technology. Singapore $3.2M - [**ChloBis Water**](https://millionrounds.com/company/chlobis-water) ChloBis Water provides a desalination battery for waste water treatment. United States $256K **How this map is made.** Every startup here has raised money in rounds we track, and was founded in 2020 or later. It joins the map when its sectors, read from its rounds, or the opening of its own description say it works in water technology, and goes to the first segment whose words it carries. Each segment shows its best-funded first. Rebuilt nightly; updated 15 November 2026. ## More market maps [All maps](https://millionrounds.com/market-maps) [Market map **Water technology market map** 137 startups · 5 segments · $1.2B](https://millionrounds.com/market-maps/water-technology-market-map)[Investors map **Who invests in water technology** 24 investors · 3 segments](https://millionrounds.com/market-maps/water-technology-investors-map)[Market map · United States **Water technology market map: United States** 63 startups · 4 segments · $816M](https://millionrounds.com/market-maps/water-technology-united-states-market-map)[Market map · Europe **Water technology market map: Europe** 38 startups · 3 segments · $273M](https://millionrounds.com/market-maps/water-technology-europe-market-map)[Market map **Marketing tech market map** 1,963 startups · 7 segments · $41B](https://millionrounds.com/market-maps/marketing-tech-market-map)[Market map **Fintech market map** 1,633 startups · 8 segments · $139B](https://millionrounds.com/market-maps/fintech-market-map) ## Who backs water technology? Open any company for its rounds and investors, or search the investors behind these startups in the app, with filters, lists and exports. [Find their investors](https://millionrounds.com/login?join=1&next=/app/investors)[Top lists](https://millionrounds.com/top-lists)