Company lists · Data refreshed September 2026

Top 25 Water technology venture capital based in the United States

RevenueBase identified 86 company matches for water technology venture capital associated with the United States as of September 2026 and tracks 554 professional contacts across them, including 138 with verified work emails. Austin is the largest hub.

This list covers company matches for water technology venture capital associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 14, 2026 How this list was built
86Companies
554Contacts tracked
138Verified emails
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The 25 largest water technology venture capital based in the United States

Ranked by team size
Top 25 of 86 company matches for water technology venture capital based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDenver, CO, United StatesHQ recorded Sep 14, 202611-5053 contacts →

Exact match

“We are committed to solving water scarcity and water quality challenges within our lifetime… through innovation in business strategy, technology, partnerships, business models and…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchReno, NV, United StatesHQ recorded Sep 14, 2026n/a39 contacts →

Exact match

“We are a healthy water company that is dedicated to providing you with the most up-to-date water technology, the greenest footprint, and the cleanest, healthiest water available…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 14, 202611-5024 contacts →

Exact match

“Buildings globally use around 15% of all potable water, but very few buildings reuse that water.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchBrentwood, TN, United StatesHQ recorded Sep 14, 202651-20022 contacts →

Exact match

“Welcome to Biznustek Global, USA – where we're pioneering the future of water reclamation.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchWaltham, MA, United StatesHQ recorded Sep 14, 2026n/a22 contacts →

Exact match

“As the world’s population increases, so too does the demand for one of our most vital resources: water.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchFowler, CA, United StatesHQ recorded Sep 14, 202611-5017 contacts →

Exact match

“Our team’s 35 years of experience, along with industry-leading agricultural water treatment and technology solutions, transform water management processes, providing peace of…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 14, 202611-5016 contacts →

Exact match

“Water Asset Management (“WAM”), founded in 2005, a global investor in companies and assets that ensure water quality and supply.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 14, 20261-1016 contacts →

Exact match

“We are at a turning point.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLos Angeles, United StatesHQ recorded Sep 14, 202651-20012 contacts →

Exact match

“Sylmar Group brings real-world action to solve the generational challenges of declining water availability and quality.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Sep 14, 202611-5012 contacts →

Exact match

“Earth Foundry is a pioneering early-stage venture capital firm, recognized globally for our ability to identify, invest in, and scale the most transformative startups in critical…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchMenlo Park, CA, United StatesHQ recorded Sep 14, 20261-1011 contacts →

Exact match

“OceanWell is a California-based water technology company on a mission to help end the water crisis and adapt to climate change.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchClearwater, FL, United StatesHQ recorded Sep 14, 202611-5010 contacts →

Exact match

“Once a government monopoly, clean water is going private.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchDetroit, MI, United StatesHQ recorded Sep 14, 20261-1010 contacts →

Exact match

“WaterWorks seeks to advance sustainable water solutions by introducing investors to technology companies and projects seeking capital.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchAppleton, WI, United StatesHQ recorded Sep 14, 20261-1010 contacts →

Exact match

“Water Life Systems (WLS) is a Water, Energy, Food Security Nexus products & services provider with IP protected electrolytic, filter, AI, sensor & IoT integrated systems.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchDraper, UT, United StatesHQ recorded Sep 14, 202611-509 contacts →

Exact match

“Alta Water is a founder-led platform modernizing the U.S.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchPortland, OR, United StatesHQ recorded Sep 14, 20261-107 contacts →

Exact match

“Resilient Infrastructure Group develops and invests in transformative water solutions and sustainable infrastructure projects.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchLas Vegas, NV, United StatesHQ recorded Sep 14, 20261-107 contacts →

Exact match

“WaterStart is a non-profit organization that connects innovative technology companies with water agencies and major water consumers (our Members) in need of innovative solutions…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 14, 20261-106 contacts →

Exact match

“Echo River Capital invests in early-stage water technology companies that Digitize, Decarbonize and Decentralize the water economy, the “Three Ds" of water tech, in order to…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchCentennial, CO, United StatesHQ recorded Sep 14, 20261-105 contacts →

Exact match

“With a background in water infrastructure development and investment, R3 develops and finances critical static and redeployable infrastructure assets.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Sep 14, 202611-505 contacts →

Exact match

“Poseidon Water LLC is experienced in the development of, management & investment in a variety of projects undertaken through a public-private partnership approach.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchLas Vegas, NV, United StatesHQ recorded Sep 14, 20261-105 contacts →

Exact match

“At Kairospace, our mission is to revolutionize water treatment through cutting-edge technology, fostering a future where water is not just a resource but a vital partner in…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchCincinnati / Northern Kentucky, United StatesHQ recorded Sep 14, 202611-504 contacts →

Exact match

“Water & Energy Management Systems Water, Energy, Land WEL has developed a water and energy management program, and we are working with other organizations to provide the tangible…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchPark City, UT, United StatesHQ recorded Sep 14, 20261-103 contacts →

Exact match

“Hawkstone Capital Group is a private investment and advisory firm providing strategic planning | business planning | finance and operations | capital raise and merger and…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24Exact matchLos Angeles, CA, United StatesHQ recorded Sep 14, 202611-502 contacts →

Exact match

“Atlas Water & Electric functions as an Independent Power and Water Producer.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
25Exact matchPompano Beach, FL, United StatesHQ recorded Sep 14, 202611-502 contacts →

Exact match

“Advanced Water Technology”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 25 of 86 water technology venture capital based in the United States

See the full list, filter by size, metro and specialty, and access 138 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water technology venture capital based in the United States at a glance

As of Sep 14, 2026
24.9%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
4.7%Largest-city concentration · Austin
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
58
11-50
22
51-200
5
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 86 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “water technology venture capital” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 138 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water technology venture capital”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water technology venture capital are there based in the United States?

RevenueBase identified 86 company matches for water technology venture capital associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Water Foundry tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water technology venture capital?

Austin leads with 4 company records, followed by Boston (4) and Los Angeles (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 138 professional contacts with verified work emails tracked across these 86 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.