Company lists · Data refreshed September 2026

Top 25 Reverse osmosis system builders based in the United States

RevenueBase identified 1,294 company matches for reverse osmosis system builders associated with the United States as of September 2026 and tracks 16,940 professional contacts across them, including 5,769 with verified work emails. Houston is the largest hub.

This list covers company matches for reverse osmosis system builders 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 21, 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 21, 2026 How this list was built
1,294Companies
16,940Contacts tracked
5,769Verified emails
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The 25 largest reverse osmosis system builders based in the United States

Ranked by team size
Top 25 of 1,294 company matches for reverse osmosis system builders based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchCanonsburg, PA, United StatesHQ recorded Sep 21, 2026501-1,000903 contacts →

Exact match

“Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchWilmington, DE, United StatesHQ recorded Sep 21, 202610001+864 contacts →

Exact match

“Chem-Aqua is a unique combination of knowledge, experience and stability.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchSalt Lake City, UT, United StatesHQ recorded Sep 21, 2026501-1,000554 contacts →

Exact match

“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 21, 202651-200317 contacts →

Exact match

“Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchOld Saybrook, CT, United StatesHQ recorded Sep 21, 2026501-1,000295 contacts →

Exact match

“Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchMinnetonka, MN, United StatesHQ recorded Sep 21, 2026501-1,000272 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 · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLombard, IL, United StatesHQ recorded Sep 21, 2026501-1,000265 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 · Sep 21, 2026 · View company records in RevenueBase
8Exact matchBaltimore, MD, United StatesHQ recorded Sep 21, 2026501-1,000222 contacts →

Exact match

“Water powers life.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLoves Park, IL, United StatesHQ recorded Sep 21, 202651-200207 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchMinneapolis, MN, United StatesHQ recorded Sep 21, 2026201-500195 contacts →

Exact match

“Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchCoraopolis, PA, United StatesHQ recorded Sep 21, 2026201-500185 contacts →

Exact match

“Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchKnoxville, TN, United StatesHQ recorded Sep 21, 2026201-500152 contacts →

Exact match

“Aqua-Chem is the leader in providing Global Water Solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchWindsor, WI, United StatesHQ recorded Sep 21, 2026201-500142 contacts →

Exact match

“Established in 1944, Clack Corporation has been providing quality industrial water treatment products, commercial water treatment equipment and molded custom plastic containers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchColumbia, SC, United StatesHQ recorded Sep 21, 202651-200117 contacts →

Exact match

“AVANTech, LLC is a comprehensive industrial water treatment solutions provider.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchColumbus, OH, United StatesHQ recorded Sep 21, 2026201-500102 contacts →

Exact match

“OASIS International is a global leader in the design, manufacture and distribution of clean drinking water systems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchElliston, VA, United StatesHQ recorded Sep 21, 202651-20095 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchGraham, NC, United StatesHQ recorded Sep 21, 202651-20094 contacts →

Exact match

“Why Pureflow?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchOxnard, CA, United StatesHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
19Exact matchChanhassen, MN, United StatesHQ recorded Sep 21, 202651-20087 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 · Sep 21, 2026 · View company records in RevenueBase
20Exact matchCharlotte, NC, United StatesHQ recorded Sep 21, 202651-20086 contacts →

Exact match

“Founded in 1962, Jim Myers & Sons, Inc.(JMS) is a high-quality equipment manufacturer leading the way in the water & wastewater industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 21, 202651-20086 contacts →

Exact match

“We make water better.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchDurham, NC, United StatesHQ recorded Sep 21, 202651-20086 contacts →

Exact match

“We Design, Build, Install, Start Up, and Validate High-Purity Water Systems-Improving Lives Through Water Purification.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchBuffalo, NY, United StatesHQ recorded Sep 21, 202651-20082 contacts →

Exact match

“At SAMCO Technologies, Inc, we provide cutting-edge water, wastewater, and process separation solutions for some of the world’s most demanding industries, including power…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchCleveland, OH, United StatesHQ recorded Sep 21, 202611-5080 contacts →

Exact match

“Water and Wastewater Equipment Company has been providing efficient, cost-effective and compliant solutions to water and wastewater treatment applications for over 30 years.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchMonroe, MI, United StatesHQ recorded Sep 21, 202651-20079 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 · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 1,294 reverse osmosis system builders based in the United States

See the full list, filter by size, metro and specialty, and access 5,769 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Reverse osmosis system builders based in the United States at a glance

As of Sep 21, 2026
34.1%Verified-email coverage
13.1Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Houston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
608
11-50
465
51-200
153
201-500
33
501-1,000
11
1,001-5,000
2
10001+
4

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 1,294 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 system builders” 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 5,769 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 21, 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 system builders”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many reverse osmosis system builders are there based in the United States?

RevenueBase identified 1,294 company matches for reverse osmosis system builders 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?

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

Which city has the most reverse osmosis system builders?

Houston leads with 25 company records, followed by San Diego (13) and Austin (12).

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 5,769 professional contacts with verified work emails tracked across these 1,294 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 21, 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.