Company lists · Data refreshed September 2026

Top 24 Greywater recycling systems based in the United States

RevenueBase identified 47 company matches for greywater recycling systems associated with the United States as of September 2026 and tracks 318 professional contacts across them, including 134 with verified work emails. Bend is the largest hub.

This list covers company matches for greywater recycling systems 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 20, 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 20, 2026 How this list was built
47Companies
318Contacts tracked
134Verified emails
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The 24 largest greywater recycling systems based in the United States

Ranked by team size
Top 24 of 47 company matches for greywater recycling systems based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchClearwater, FL, United StatesHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchLenexa, KS, United StatesHQ recorded Sep 20, 202651-20029 contacts →

Exact match

“Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
4Exact matchCumming, GA, United StatesHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“RainHarvest Systems is your comprehensive resource for residential and commercial water harvesting, treatment and reuse products and systems.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchCincinnati, OH, United StatesHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“At Streamkey Inc, we specialize in custom engineered water and wastewater systems for a variety of commercial and residential applications.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Innovative Water Solutions LLC is a full-service water conservation system design / build company that specializes in integrated water demand and supply management for residential…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSt. Joseph, MN, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Full Circle Water develops and builds simple-to-use, turnkey wastewater solutions that make recycling water easier, less time-consuming and more cost-effective.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchClearwater, FL, United StatesHQ recorded Sep 20, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchHinsdale, IL, United StatesHQ recorded Sep 20, 20261-109 contacts →

Exact match

“At Water Harvesting Solutions (Wahaso), we are a team that brings experience, skill and passion about water conservation to every client project.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchHampton, NH, United StatesHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Water Treatment Solutions custom designs and installs patented and patent pending water filtration and recycling systems developed for the varied water needs of the stone, glass…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchMiami Beach, FL, United StatesHQ recorded Sep 20, 20261-107 contacts →

Exact match

“In collaboration with engineers, architects, and developers, we are building a more secure world by helping communities achieve water resilience, where potable water is protected.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchIrvine, CA, United StatesHQ recorded Sep 20, 202611-506 contacts →

Exact match

“Exergy revolutionizes water and recycling solutions to confront pervasive overconsumption in the manufacturing industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchEureka, CA, United StatesHQ recorded Sep 20, 202611-505 contacts →

Exact match

“WATSON DESIGNS & BUILDS WATER TREATMENT SYSTEMS ADDRESSING SPECIFIC WATER QUALITY ISSUES.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Greywater Corps is the only company in the Los Angeles area specializing in water resiliency.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLawrence, MA, United StatesHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Clivus Multrum, Inc, designs, manufactures, and sells composting toilets and greywater irrigation systems, with the aim of conserving water and keeping the nutrients in human…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchCharlottesville, VA, United StatesHQ recorded Sep 20, 202611-503 contacts →

Exact match

“Commonwealth H2O – Blue Ridge is a full service water conservation and conditioning company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchTampa, FL, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Geomat is a closed-loop water recovery system that recycles and captures all water used in indoor agriculture.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchSan Jose, CA, United StatesHQ recorded Sep 20, 202611-502 contacts →

Exact match

“A Sustainable Landscaping Cooperative set out to help the Santa Clara County conserve its precious resources by saving on water, energy & maintenance costs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMountain View, CA, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“Our mission is to preserve the world's water for future generations and protect our customers from rising water costs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchColumbia, SC, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“We research, develop, and apply cutting-edge, sustainable solutions for wastewater treatment systems, helping companies cut costs, increase revenue, and reduce their carbon…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 20261-102 contacts →

Exact match

“At CatchingH2O, we help homeowners, businesses, and organizations create smarter, more resilient water systems through rainwater harvesting and greywater reuse.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchCedar Crest, NM, United StatesHQ recorded Sep 20, 20261-101 contacts →

Exact match

“Cactus Rain LLC helps people throughout New Mexico reduce water consumption, harvest rainwater, and reuse greywater in inspired ways.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSt. Louis, MO, United StatesHQ recorded Sep 20, 20261-101 contacts →

Exact match

“Laero is a design studio specializing in clean, innovative building technologies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSeattle, WA, United StatesHQ recorded Sep 20, 20261-101 contacts →

Exact match

“The Foss Toilet is a water-recycling toilet system, with zero liquid discharge, that lets you "go" anywhere.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 24 of 47 greywater recycling systems based in the United States

See the full list, filter by size, metro and specialty, and access 134 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Greywater recycling systems based in the United States at a glance

As of Sep 20, 2026
42.1%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
4.3%Largest-city concentration · Bend
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
14
51-200
3

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 47 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 “greywater recycling systems” 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 134 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 20, 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 “greywater recycling systems”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many greywater recycling systems are there based in the United States?

RevenueBase identified 47 company matches for greywater recycling systems 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?

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

Which city has the most greywater recycling systems?

Bend leads with 2 company records, followed by Clearwater (2) and Lawrence (2).

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 134 professional contacts with verified work emails tracked across these 47 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 20, 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.