Company lists · Data refreshed October 2026

Top 25 Commercial water filtration manufacturers based in the United States

Name: Commercial water filtration manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 1,304 companies tracked

RevenueBase identified 1,304 company matches for commercial water filtration manufacturers associated with the United States as of October 2026 and tracks 14,947 professional contacts across them, including 4,012 with verified work emails. Houston is the largest hub.

This list covers company matches for commercial water filtration manufacturers 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 October 10, 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 Oct 10, 2026 How this list was built

1,304Companies

14,947Contacts tracked

4,012Verified emails

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The 25 largest commercial water filtration manufacturers based in the United States

Ranked by team size

Top 25 of 1,304 company matches for commercial water filtration manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Westech Engineering	Exact match	Salt Lake City, UT, United StatesHQ recorded Oct 10, 2026	501-1,000	577 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 · Oct 10, 2026 · View company records in RevenueBase
2	Ecowater Systems LLC	Exact match	Woodbury, MN, United StatesHQ recorded Oct 10, 2026	201-500	473 contacts →
	Exact match “Established in 1925, EcoWater Systems LLC is one of the world's largest manufacturers of residential water treatment systems.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Quench Usa, INC	Exact match	King Of Prussia, PA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	436 contacts →
	Exact match “Culligan Quench understands your workplace has unique water needs.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Culligan Water	Exact match	Jacksonville, FL, United StatesHQ recorded Oct 10, 2026	51-200	362 contacts →
	Exact match “At Culligan Water Conditioning of Jacksonville FL, we not only aim to provide better water to the community, we are also committed to building a better, more sustainable world.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Packard Culligan Water	Exact match	Minnetonka, MN, United StatesHQ recorded Oct 10, 2026	501-1,000	281 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 · Oct 10, 2026 · View company records in RevenueBase
6	Water Quality Association	Exact match	Lisle, IL, United StatesHQ recorded Oct 10, 2026	51-200	246 contacts →
	Exact match “The Water Quality Association (WQA) is a not-for-profit association of the water treatment industry.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Graver Technologies, LLC	Exact match	Glasgow, DE, United StatesHQ recorded Oct 10, 2026	201-500	189 contacts →
	Exact match “Graver Technologies, LLC serves the industrial filtration, separation and purification needs of companies around the globe.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Aqua-Chem	Exact match	Knoxville, TN, United StatesHQ recorded Oct 10, 2026	201-500	163 contacts →
	Exact match “Aqua-Chem is the leader in providing Global Water Solutions.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Clack Corporation	Exact match	Windsor, WI, United StatesHQ recorded Oct 10, 2026	201-500	146 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 · Oct 10, 2026 · View company records in RevenueBase
10	Oasis International	Exact match	Columbus, OH, United StatesHQ recorded Oct 10, 2026	201-500	103 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 · Oct 10, 2026 · View company records in RevenueBase
11	Barclay Water Management, INC	Exact match	Newton, MA, United StatesHQ recorded Oct 10, 2026	51-200	103 contacts →
	Exact match “Established in 1932 and headquartered in Newton, Massachusetts, Barclay Water Management, Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	KX Technologies	Exact match	West Haven, CT, United StatesHQ recorded Oct 10, 2026	51-200	101 contacts →
	Exact match “KX Technologies is your Global Filtration Partner.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Pureflow, INC	Exact match	Graham, NC, United StatesHQ recorded Oct 10, 2026	51-200	96 contacts →
	Exact match “Why Pureflow?” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Avalon	Exact match	Lakewood, NJ, United StatesHQ recorded Oct 10, 2026	11-50	96 contacts →
	Exact match “Avalon offers Perfect Water, Every Time by providing bottleless filtered water coolers that have been rigorously tested and are held up to the highest standards in the industry.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Puretec Industrial Water	Exact match	Oxnard, CA, United StatesHQ recorded Oct 10, 2026	51-200	91 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 · Oct 10, 2026 · View company records in RevenueBase
16	Innovative Water Care	Exact match	Alpharetta, GA, United StatesHQ recorded Oct 10, 2026	1,001-5,000	88 contacts →
	Exact match “Sigura is a leading supplier of water treatment solutions for Residential Pools & Spas, as well as Industrial and Municipal applications.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Fresh Water Systems	Exact match	Greenville, SC, United StatesHQ recorded Oct 10, 2026	51-200	77 contacts →
	Exact match “Fresh Water Systems is a relationally-driven provider of filtration solutions that leverage expertise and intentionality to connect with conscientious businesses and consumers.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Lakos Filtration Solutions	Exact match	Fresno, CA, United StatesHQ recorded Oct 10, 2026	51-200	75 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 · Oct 10, 2026 · View company records in RevenueBase
19	Paragon Water Systems INC	Exact match	Tampa, FL, United StatesHQ recorded Oct 10, 2026	201-500	74 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 · Oct 10, 2026 · View company records in RevenueBase
20	Wigen Water Technologies	Exact match	Minneapolis, CO, United StatesHQ recorded Oct 10, 2026	51-200	72 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 · Oct 10, 2026 · View company records in RevenueBase
21	Clear Water Services	Exact match	Everett, WA, United StatesHQ recorded Oct 10, 2026	51-200	71 contacts →
	Exact match “Clear Water Services provides innovative stormwater, groundwater, and process water solutions custom-designed for each client's unique goals, challenges, and mission.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Kuehne Chemical Company	Exact match	Kearny, NJ, United StatesHQ recorded Oct 10, 2026	51-200	65 contacts →
	Exact match “Every day 30 million people benefit from Kuehne Company’s water treatment products.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Marlo Incorporated	Exact match	Racine, WI, United StatesHQ recorded Oct 10, 2026	51-200	64 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 · Oct 10, 2026 · View company records in RevenueBase
24	Aquasana	Exact match	Austin, TX, United StatesHQ recorded Oct 10, 2026	51-200	63 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 · Oct 10, 2026 · View company records in RevenueBase
25	Ameriwater	Exact match	Dayton, OH, United StatesHQ recorded Oct 10, 2026	51-200	59 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 · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial water filtration manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,304 commercial water filtration manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 4,012 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial water filtration manufacturers based in the United States at a glance

As of Oct 10, 2026

26.8%Verified-email coverage

11.5Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Houston

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

627

11-50

475

51-200

137

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,304 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 “commercial water filtration manufacturers” 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 4,012 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 October 10, 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 “commercial water filtration manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial water filtration manufacturers are there based in the United States?

RevenueBase identified 1,304 company matches for commercial water filtration manufacturers associated with the United States as of October 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?

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

Which city has the most commercial water filtration manufacturers?

Houston leads with 20 company records, followed by Las Vegas (11) and New York (11).

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 4,012 professional contacts with verified work emails tracked across these 1,304 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 October 10, 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.