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Top Water Tech Companies

24 Water Tech companies, sorted by total funding raised.

24

Companies

$350.8M

Combined Funding

Seed

Top Stage

Indexed tracks 24 Water Tech companies that have collectively raised $350.8M in documented funding. The most-funded water tech companies tracked include Gradiant Corporation and Aquam. Seed is the most common funding stage among water tech companies in this dataset.

Gradiant Corporation

Water treatment technology company offering advanced solutions for industrial and municipal water...

Woburn, United States201–500Clean Tech, Sustainability
Series E·$225.0M·May 2026
AquamAcquired

Aquam Corporation provides pipeline infrastructure technology and inspection services for water a...

United StatesEnergy, Infrastructure
Series A·$51.0M·Jun 2026
Flo TechnologiesAcquired

Los Angeles-based IoT startup protecting homes and businesses from water damage through smart lea...

Los Angeles, United States11–50IoT, Water Tech
Series B·$28.0M·Jan 2019
Vital Lyfe

Vital Lyfe is a water technology company that builds scalable, portable desalination systems desi...

HawthorneClean Tech, Hardware
Seed·$18.1M·Dec 2025
Aquaria

Atmospheric water generation company that makes water from thin air for homes with no pipes, well...

Clean Tech, Water Tech
Venture Round·$12.0M·Nov 2024
Hydroleap

Developer of wastewater treatment technology designed to replace expensive chemical treatments wi...

Singapore, SingaporeAgtech, Climate Tech
Series A·$11.1M·Jul 2025
OXbyEL Technologies

OxByEl is solving the water contamination crisis in one clean, affordable step with electrochemic...

Phoenix, United States1–10Climate Tech, Hardware
Convertible·$2.1M·Aug 2025
Pure Blue Tech

We provide self-cleaning reverse osmosis for liquids filtration and water reuse. Our membranes pr...

Bellingham, United States11–50Advanced Materials, Sustainability
Angel·$1.6M·Aug 2024
Aequor Inc

We clean water from deep sea to deep space

New Brunswick, United States1–10Biotech, Clean Tech
Seed·$1.5M·Dec 2023
SuperCool Earth

Ending Global Water Bankruptcy.

San Francisco, United States1–10Biotech, Climate Tech
Seed·$350K·Feb 2025
EMAGIN (acq. by Innovyze)Acquired

Artificial Intelligence for water and wastewater systems.

Waterloo, Canada11–50Artificial Intelligence, Data & Analytics
Grant·$30K
Aquatic InformaticsAcquired

Water data management software helping 1,500+ organizations in 60 countries manage environmental ...

Vancouver, Canada51–200Clean Tech, Data & Analytics
Seed·Feb 2007
Bepure

Direct-to-consumer water solutions company providing affordable water purifiers, softeners, and a...

E-Commerce, Retail
Funding undisclosed
California Water Service GroupIPO

California Water Service Group provides high-quality water and wastewater utility services to mor...

San Jose, United States1001–5000Energy, Water Tech
Funding undisclosed
EverpureIPO

Everpure, a Pentair brand, provides commercial water filtration systems for restaurants and foods...

Northbrook, United StatesWater Tech
Funding undisclosed
MAIA ANALYTICA LLC

R&D company with 2 SBIR/STTR awards from National Science Foundation.

Corvallis, United States1–10Sustainability, Water Tech
Funding undisclosed
NOVOREACH TECHNOLOGIES, LLC

R&D company with 7 SBIR/STTR awards from Department of Energy, Department of Agriculture.

Midland, United States1–10Advanced Materials, Clean Tech
Funding undisclosed
PANI CLEAN INC

R&D company with 4 SBIR/STTR awards from Department of Agriculture.

CORALVILLE, United States1–10Clean Tech, Water Tech
Funding undisclosed
PORIFERA, INC.

R&D company with 2 SBIR/STTR awards from Department of Energy.

San Leandro, United States11–50Climate Tech, Food & Beverage
Funding undisclosed
Pure Cycle CorporationIPO

Diversified land and water resource developer providing water services and land development in Co...

Watkins, United States11–50Energy, Real Estate
Funding undisclosed
Sentry Water Tech

At SENTRY™, we care about the environment and making better decisions when treating water and was...

Canada11–50Sustainability, Clean Tech
Funding undisclosed
Watergenics

Watergenics delivers AI-based real-time in-line water quality measurement for industrial operator...

Berlin, Germany1–10IoT, Sustainability
Seed·Apr 2023
Watts Water TechnologiesIPO

Watts Water Technologies manufactures plumbing, heating, and water quality solutions for resident...

North Andover, United States5001–10000Manufacturing, Water Tech
Funding undisclosed
WEAVER LABS LLC

R&D company with 5 SBIR/STTR awards from Department of Agriculture, Department of Health and Huma...

STILLWATER, United States1–10Water Tech
Funding undisclosed

Frequently Asked Questions

How many Water Tech companies are tracked on Indexed?

Indexed tracks 24 Water Tech companies, sorted by total funding raised.

How much funding have Water Tech companies raised in total?

The Water Tech companies tracked by Indexed have collectively raised $350.8M in documented funding.

What are the top-funded Water Tech companies?

The most-funded Water Tech companies tracked include Gradiant Corporation, Aquam, Flo Technologies.

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