Company lists · Data refreshed November 2026

Top 25 Reverse osmosis filtration equipment suppliers based in the United States

RevenueBase identified 838 company matches for reverse osmosis filtration equipment suppliers associated with the United States as of November 2026 and tracks 7,947 professional contacts across them, including 2,119 with verified work emails. Houston is the largest hub.

This list covers company matches for reverse osmosis filtration equipment suppliers 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 November 1, 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 Nov 1, 2026 How this list was built
838Companies
7,947Contacts tracked
2,119Verified emails
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The 25 largest reverse osmosis filtration equipment suppliers based in the United States

Ranked by team size
Top 25 of 838 company matches for reverse osmosis filtration equipment suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 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 matchMinnetonka, MN, United StatesHQ recorded Nov 1, 2026501-1,000281 contacts →

Exact match

“Packard Culligan Water is a family-owned company with values based on relationships, unity, listening, and leading locally.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
2Exact matchLombard, IL, United StatesHQ recorded Nov 1, 2026501-1,000277 contacts →

Exact match

“Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
3Exact matchChanhassen, MN, United StatesHQ recorded Nov 1, 202651-20097 contacts →

Exact match

“Vessco Water is a family of companies that brings innovative, synergy based water solutions and services to our customers around the United States.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
4Exact matchOxnard, CA, United StatesHQ recorded Nov 1, 202651-20091 contacts →

Exact match

“Puretec provides water treatment solutions that transform incoming city water into highly purified deionized water suitable for hundreds of industrial applications across dozens…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
5Exact matchMadison, WI, United StatesHQ recorded Nov 1, 202651-20082 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchMonroe, MI, United StatesHQ recorded Nov 1, 202651-20081 contacts →

Exact match

“FEDCO is a global leader in the manufacture and sale of pumps and energy recovery devices (ERDs) for brackish and seawater reverse osmosis (RO) desalination systems.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
7Exact matchFresno, CA, United StatesHQ recorded Nov 1, 202651-20075 contacts →

Exact match

“In 1972, LAKOS was founded on the belief that filtering water should be simple – both for the people who operate filtration equipment and the environment.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
8Exact matchTampa, FL, United StatesHQ recorded Nov 1, 2026201-50074 contacts →

Exact match

“Paragon Water Systems partners with appliance brands, foodservice operators, and industrial companies that require a reliable, scalable ODM/OEM water filtration manufacturer.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchMinneapolis, CO, United StatesHQ recorded Nov 1, 202651-20072 contacts →

Exact match

“Founded in 1965, Wigen Water Technologies® is a global leader in the production of custom water treatment systems, specializing in cost-effective and reliable solutions for…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchRacine, WI, United StatesHQ recorded Nov 1, 202651-20064 contacts →

Exact match

“For 50 years, Marlo Incorporated has engineered and manufactured high quality water treatment equipment for a wide variety of residential, commercial, and industrial applications.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchGarner, NC, United StatesHQ recorded Nov 1, 202651-20064 contacts →

Exact match

“Kinetico Advanced Water Systems helps you understand and fix your water issues through custom analysis and tailored solutions.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
12Exact matchAustin, TX, United StatesHQ recorded Nov 1, 202651-20063 contacts →

Exact match

“At Aquasana we believe clean water and a healthy environment are the most important components to healthy living and overall well-being.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
13Exact matchBakersfield, CA, United StatesHQ recorded Nov 1, 202651-20061 contacts →

Exact match

“Clear Creek Systems is a leading provider of water treatment systems and services.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
14Exact matchDayton, OH, United StatesHQ recorded Nov 1, 202651-20059 contacts →

Exact match

“AmeriWater is the recognized specialist in the design, manufacturing, installation and supply of water treatment equipment and services.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
15Exact matchWheeling, IL, United StatesHQ recorded Nov 1, 2026201-50054 contacts →

Exact match

“The U.S.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchMuskogee, OK, United StatesHQ recorded Nov 1, 202651-20052 contacts →

Exact match

“Advantage Controls was founded in 1994 with the basic belief in providing exceptional value to our customers and to treat them and our team members like family.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchVista, CA, United StatesHQ recorded Nov 1, 2026201-50052 contacts →

Exact match

“Global water technology solutions provider since 1983.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
18Exact matchLivermore, CA, United StatesHQ recorded Nov 1, 202651-20050 contacts →

Exact match

“Manufacturer of a complete line of water treatment systems for homes and businesses.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchLoves Park, IL, United StatesHQ recorded Nov 1, 202651-20049 contacts →

Exact match

“WaterSurplus is a leader in sustainable water treatment, delivering high-performance solutions across industries.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
20Exact matchMedina, OH, United StatesHQ recorded Nov 1, 202651-20048 contacts →

Exact match

“Nelsen Corporation is a leading wholesale distributor and OEM manufacturer serving the professional water treatment industry.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
21Exact match195, IN, United StatesHQ recorded Nov 1, 202651-20047 contacts →

Exact match

“At US Water Systems, we design and build commercial and residential water treatment solutions right here, using the internet to ship directly to your home or business.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
22Exact matchMorton Grove, IL, United StatesHQ recorded Nov 1, 202651-20046 contacts →

Exact match

“No matter what your water problem, Charger Water Treatment Products has a solution.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
23Exact matchKalamazoo, MI, United StatesHQ recorded Nov 1, 202611-5045 contacts →

Exact match

“Gordon Water Systems is frequently recognized as the top water treatment company in West Michigan.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
24Exact matchMiddlesex, NJ, United StatesHQ recorded Nov 1, 202651-20044 contacts →

Exact match

“PSI Process is a stocking distributor and service facility for the world’s leading manufacturers of equipment used in the treatment and transfer of water, wastewater and other…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
25Exact matchArnold, MO, United StatesHQ recorded Nov 1, 202611-5043 contacts →

Exact match

“Absolute Water Technologies based in Indianapolis, Indiana with a service branch in St.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase

Showing 25 of 838 reverse osmosis filtration equipment suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 2,119 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Reverse osmosis filtration equipment suppliers based in the United States at a glance

As of Nov 1, 2026
26.7%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · Houston
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
428
11-50
280
51-200
89
201-500
22
501-1,000
6
1,001-5,000
1
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 838 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 “reverse osmosis filtration equipment suppliers” 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 2,119 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 November 1, 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 “reverse osmosis filtration equipment suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reverse osmosis filtration equipment suppliers are there based in the United States?

RevenueBase identified 838 company matches for reverse osmosis filtration equipment suppliers associated with the United States as of November 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?

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

Which city has the most reverse osmosis filtration equipment suppliers?

Houston leads with 17 company records, followed by San Diego (11) and Tampa (8).

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 2,119 professional contacts with verified work emails tracked across these 838 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 November 1, 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.