| # | Company | Location | Employees | Total Funding | Last Round | Last Funded |
|---|---|---|---|---|---|---|
| 1 |
Vital Lyfe
Vital Lyfe is a Climatech product manufacturing firm that develops systems to pr…
|
Hawthorne | 1 - 10 | $42.1M | Seed | 2025-12-16 |
| 2 |
Kadeya
Kadeya is a closed-loop water vending business that utilizes digitally connected…
|
Chicago | 1 - 10 | $11.3M | Series Unknown | 2025-12-03 |
| 3 |
Aquaporin
Aquaporin is a water tech company that offers water treatment through bioenginee…
|
Kongens Lyngby | 51 - 100 | $45.3M | Post Ipo Equity | 2025-12-19 |
| 4 |
OceanWell
OceanWell produces fresh water from the deep sea to help solve the water crisis.
|
Los Angeles | 11 - 50 | $15.0M | Series A | 2024-11-20 |
| 5 |
Blueland
Blueland is a eco-friendly refillable cleaning supply retailer.
|
New York | 101 - 250 | $23.0M | Seed | 2022-02-16 |
| 6 |
VVater
America's Next Water Company
|
Austin | 11 - 50 | $7.8M | Undisclosed | 2024-11-21 |
| 7 |
Flocean
Flocean delivers subsea pumping systems for providing clean drinking water in th…
|
Oslo | 11 - 50 | $31.5M | Series A | 2025-11-18 |
| 8 |
LARQ
LARQ helps people access pristine drinking water easily and sustainably.
|
Foster City | 11 - 50 | $10.7M | Series A | 2020-09-29 |
| 9 |
Aclarity
Aclarity is a VC-backed cleantech startup developing and selling water treatment…
|
Hadley | 11 - 50 | $23.8M | Series A | 2023-11-02 |
| 10 |
Gradiant
Gradiant is a solutions provider and developer of cleantech water projects for a…
|
Woburn | 1K - 5K | $442.4M | Debt Financing | 2025-10-16 |
| 11 |
Airbuild
Climatetech, watertech, circular economy
|
San Diego | 11 - 50 | $613K | Grant | 2025-04-14 |
| 12 |
ZwitterCo
ZwitterCo provides membrane solutions for the treatment of highly-impaired waste…
|
Woburn | 51 - 100 | $98.8M | Series B | 2024-07-09 |
| 13 |
Xatoms
Xatoms develops novel photocatalysts to create efficient and sustainable water t…
|
Toronto | 11 - 50 | $2.5M | Pre Seed | 2025-06-19 |
| 14 |
Organica Water
Organica Water develops solutions for treating and recycling wastewater.
|
Princeton | 101 - 250 | $47.7M | Private Equity | 2026-01-14 |
| 15 |
Source
Source is a developer and manufacturer of solar-powered devices designed to extr…
|
Scottsdale | 101 - 250 | $364.4M | Series D | 2022-07-19 |
| 16 |
Aquagga, Inc.
Cleantech / ClimateTech company Ending PFAS 'Forever Chemical' pollution through…
|
Tacoma | 11 - 50 | $10.5M | Grant | 2025-08-01 |
| 17 |
ZenWTR
ZenWTR is a vapor distilled alkaline water bottled in recyclable ocean-bound pla…
|
Irvine | 11 - 50 | $48.7M | Series B | 2023-12-26 |
| 18 |
NALA Membranes
NALA Membranes provides environmental services with an intention to bring new re…
|
Morrisville | 1 - 10 | $5.5M | Debt Financing | 2025-04-28 |
| 19 |
Adionics
Adionics provides ionic solutions for salt separations, lithium, and iodide extr…
|
Thiais | 51 - 100 | $35.9M | Series B | 2023-11-29 |
| 20 |
Waterdrop
Waterdrop encourage to drink more water with its flavored cubes dissolving in wa…
|
Osterreicher | 251 - 500 | $67.4M | Series Unknown | 2024-04-02 |
| 21 |
ACCIONA
ACCIONA is the development and management of infrastructure, renewable energy, w…
|
Alcobendas | c 10001 max | $2.1B | Post Ipo Debt | 2025-09-29 |
| 22 |
Aquaria
Aquaria provides solutions for securing access to clean water and adapts to chan…
|
San Francisco | 11 - 50 | $112.0M | Series Unknown | 2024-11-20 |
| 23 |
bNovate Technologies
BNovate Technologies develops automated water monitoring solutions, specializing…
|
Ecublens | 11 - 50 | $23.3M | Grant | 2025-02-21 |
| 24 |
Livpure
Livpure offers water purifiers and wellness products for home use.
|
Haryana | 1K - 5K | $43.8M | Series Unknown | 2024-08-21 |
| 25 |
Southern Water
Southern Water is a private utility company responsible for public wastewater co…
|
Worthing | 1K - 5K | $1.6B | Private Equity | 2025-07-01 |
| 26 |
HydroLeap
Hydropleap provides advanced environmental-friendly technological water treatmen…
|
Singapore | 11 - 50 | $11.0M | Series A | 2025-07-30 |
| 27 |
HOPE Hydration
HOPE Hydration is a water-tech & media startup transforming global hydration.
|
Miami | 11 - 50 | $26.1M | Series A | 2025-07-16 |
| 28 |
BE WTR
BE WTR makes a variety of hygienic water taps for offices and other businesses.
|
Lausanne | 51 - 100 | $50.6M | Corporate Round | 2025-10-29 |
| 29 |
Saltworks Technologies
Provider of advanced water treatment technology and solutions.
|
Richmond | 101 - 250 | $17.0M | Grant | 2026-04-15 |
| 30 |
Sepion Technologies
Sepion is an advanced membrane company offering a platform suite of highly-tunab…
|
Emeryville | 11 - 50 | $43.5M | Series B | 2026-03-26 |
| 31 |
Ionomr
Ionomr makes Aemion™ & Pemion™, next-gen ion-exchange materials for breakthrough…
|
Vancouver | 51 - 100 | $50.3M | Series Unknown | 2024-10-03 |
| 32 |
Wessex Water
Wessex Water is a regional utility service that offers water and water services …
|
Bath | 5K - 10K | $382.4M | Debt Financing | 2024-07-03 |
| 33 |
Culligan International
Culligan works to provide better water for their customers in their homes, offic…
|
Rosamond | 5K - 10K | $1.2B | Undisclosed | 2020-03-30 |
| 34 |
Remote Waters
Remote Waters designs and maintains water treatment systems for communities and …
|
Santiago | 1 - 10 | $795K | Grant | 2024-01-31 |
| 35 |
Matter.
Matter. is a company that provide solutions for capturing, harvesting, and recyc…
|
Bristol | 11 - 50 | $11.0M | Corporate Round | 2025-11-05 |
| 36 |
CREW Carbon
CREW Carbon removes CO2 from wastewater using enhanced weathering technology.
|
Hamden | 1 - 10 | $5.3M | Seed | 2024-10-30 |
| 37 |
OCP Green Water
OCP Green Water focuses on alternative water sources such as desalination and wa…
|
El Jadida | 51 - 100 | $647.3M | Private Equity | 2025-04-18 |
| 38 |
Cloud Water Filters
Cloud is a technology company building water filtration products for the smart h…
|
San Diego | 1 - 10 | $3.3M | Seed | 2025-01-29 |
| 39 |
Maynilad
Maynilad is an utility company that delivers water supply, wastewater management…
|
Quezon City | 5K - 10K | $171.5M | Debt Financing | 2024-05-23 |
| 40 |
Aquafin
Aquafin has entered into an exclusive license agreement to distribute, market, a…
|
Elkton | 11 - 50 | $211.0M | Debt Financing | 2017-02-22 |
| 41 |
Oneka Technologies
Wave-Powered Sustainable Desalination Solutions for Coastal Communities and Indu…
|
Sherbrooke | 51 - 100 | $21.6M | Series A | 2023-09-20 |
| 42 |
microTERRA
microTERRA is a plant-based food company that creates sustainable and functional…
|
Mexico City | 1 - 10 | $13.0M | Seed | 2024-09-03 |
| 43 |
Elateq
Elateq delivers an all-in-one water treatment system that simultaneously removes…
|
Amherst | 1 - 10 | $504K | Grant | 2024-03-04 |
| 44 |
The Ocean Cleanup
The Ocean Cleanup develops technologies to extract, prevent, and intercept plast…
|
Rotterdam | 51 - 100 | $35.4M | Grant | 2017-05-11 |
| 45 |
DrinkPrime
DrinkPrime is a manufacturer of IoT-enabled water purifiers.
|
Bangalore | 101 - 250 | $16.6M | Series A | 2026-03-11 |
| 46 |
Boon
Water-tech startup using innovation for impact. Come celebrate water like it sho…
|
Gurgaon | 501 - 1K | $22.2M | Debt Financing | 2024-07-17 |
| 47 |
KMX Technologies
KMX Technologies provides membrane distillation technology to separate and recov…
|
Mississauga | 1 - 10 | $12.0M | Series Unknown | 2025-11-04 |
| 48 |
Serionix
Serionix is a research and development company that develops materials for water…
|
Champaign | 11 - 50 | $7.5M | Debt Financing | 2022-12-22 |
| 49 |
CleanEdge Resources
CleanEdge Resources develops breakthrough technology for industrial wastewater t…
|
Singapore | 101 - 250 | $20.0M | Series Unknown | 2024-01-25 |
| 50 |
HULO.ai
HULO.ai provides water utilities with condition assessment technologies.
|
Leeuwarden | 11 - 50 | $3.5M | Seed | 2025-10-21 |