Company lists · Data refreshed September 2026

Top 25 Industrial water treatment based in the United States

Name: Industrial water treatment based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,395 companies tracked

RevenueBase identified 2,395 company matches for industrial water treatment associated with the United States as of September 2026 and tracks 82,023 professional contacts across them, including 31,018 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial water treatment 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 17, 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 17, 2026 How this list was built

2,395Companies

82,023Contacts tracked

31,018Verified emails

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The 25 largest industrial water treatment based in the United States

Ranked by team size

Top 25 of 2,395 company matches for industrial water treatment based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Nalco Water, An Ecolab Company	Exact match	Naperville, IL, United StatesHQ recorded Sep 17, 2026	10001+	11,500 contacts →
	Exact match “A global leader in water and process management solutions, Nalco Water, an Ecolab company, works with customers across a wide range of industries to help meet their specific…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	XYLEM	Exact match	Washington, DC, United StatesHQ recorded Sep 17, 2026	10001+	9,320 contacts →
	Exact match “Xylem is the global leader in advanced technologies, solutions and services that address the world’s biggest water challenges.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Solenis	Exact match	Wilmington, DE, United StatesHQ recorded Sep 17, 2026	10001+	6,128 contacts →
	Exact match “Solenis is a leading global provider of water and hygiene solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Pall Corporation	Exact match	Port Washington, NY, United StatesHQ recorded Sep 17, 2026	5,001-10,000	4,495 contacts →
	Exact match “Our global associates are unified by a singular drive: to take on our customers’ biggest challenges.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	NCH	Exact match	Wilmington, DE, United StatesHQ recorded Sep 17, 2026	10001+	2,361 contacts →
	Exact match “Cleaning water, conserving energy and delivering maintenance solutions since 1919.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Culligan International	Exact match	Rosemont, IL, United StatesHQ recorded Sep 17, 2026	10001+	1,830 contacts →
	Exact match “There’s nothing more fundamental to life on Earth than water.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Select Water Solutions	Exact match	Gainesville, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,605 contacts →
	Exact match “Select is a leader in water management and chemical technology to our customers in the oil and gas industry, as well as in other industrial applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Chemtreat	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,404 contacts →
	Exact match “At ChemTreat, we understand that water is a vital resource for our planet.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Aquatech	Exact match	Canonsburg, PA, United StatesHQ recorded Sep 17, 2026	501-1,000	903 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 17, 2026 · View company records in RevenueBase
10	Dubois Chemicals, INC	Exact match	Sharonville, OH, United StatesHQ recorded Sep 17, 2026	1,001-5,000	884 contacts →
	Exact match “DuBois has been serving customers since 1920.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Chem-Aqua, INC	Exact match	Wilmington, DE, United StatesHQ recorded Sep 17, 2026	10001+	864 contacts →
	Exact match “Chem-Aqua is a unique combination of knowledge, experience and stability.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Gradiant	Exact match	Woburn, MA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	813 contacts →
	Exact match “Gradiant is a Different Kind of Water Company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Ceco Environmental Corporation	Exact match	Addison, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	646 contacts →
	Exact match “CECO Environmental is a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment across the globe…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Westech Engineering	Exact match	Salt Lake City, UT, United StatesHQ recorded Sep 17, 2026	501-1,000	554 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 17, 2026 · View company records in RevenueBase
15	Evergreen North America Industrial Services	Exact match	La Porte, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	468 contacts →
	Exact match “Evergreen North America Industrial Services offers a comprehensive range of Industrial Services for oil refineries, petrochemical plants, power generation plants, manufacturing…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	UCC Environmental	Exact match	Waukegan, IL, United StatesHQ recorded Sep 17, 2026	201-500	389 contacts →
	Exact match “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Culligan Water	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 17, 2026	51-200	354 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 · Sep 17, 2026 · View company records in RevenueBase
18	Parkson Corporation	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Sep 17, 2026	51-200	317 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 17, 2026 · View company records in RevenueBase
19	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Exact match	Old Saybrook, CT, United StatesHQ recorded Sep 17, 2026	501-1,000	295 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 17, 2026 · View company records in RevenueBase
20	Packard Culligan Water	Exact match	Minnetonka, MN, United StatesHQ recorded Sep 17, 2026	501-1,000	272 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 17, 2026 · View company records in RevenueBase
21	Keystone Clearwater Solutions	Exact match	Hershey, PA, United StatesHQ recorded Sep 17, 2026	501-1,000	268 contacts →
	Exact match “Keystone Clearwater Solutions is moving water forward with engineered solutions for safer, more efficient water transfer, water management, and environmental services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Valicor	Exact match	Monroe, OH, United StatesHQ recorded Sep 17, 2026	201-500	254 contacts →
	Exact match “Valicor is a trusted partner for sustainable waste management solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Chemsearch FE	Exact match	Irving, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	251 contacts →
	Exact match “Chemsearch FE’s mission is simple-to help facilities save water, energy and reduce operating costs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Prominent North America	Exact match	Pit, United StatesHQ recorded Sep 17, 2026	201-500	251 contacts →
	Exact match “ProMinent North America is part of the global ProMinent Group, a pioneer in metering technology and water treatment solutions with roots in Heidelberg, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Johnson Screens, A Brand Of Aqseptence Group	Exact match	New Brighton, MN, United StatesHQ recorded Sep 17, 2026	201-500	249 contacts →
	Exact match “Johnson Screens is the leading global provider of screening and auxiliary solutions.” Recorded in the RevenueBase company graph · Sep 17, 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 “industrial water treatment”. 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 2,395 industrial water treatment based in the United States

See the full list, filter by size, metro and specialty, and access 31,018 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial water treatment based in the United States at a glance

As of Sep 17, 2026

37.8%Verified-email coverage

34.2Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,057

11-50

874

51-200

301

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 2,395 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 “industrial water treatment” 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 31,018 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 17, 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 “industrial water treatment”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water treatment are there based in the United States?

RevenueBase identified 2,395 company matches for industrial water treatment 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?

Nalco Water, An Ecolab Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial water treatment?

Houston leads with 71 company records, followed by Phoenix (20) and Tampa (19).

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 31,018 professional contacts with verified work emails tracked across these 2,395 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 17, 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.