Company lists · Data refreshed September 2026

Top 25 Municipal water treatment contractors based in the United States

Name: Municipal water treatment contractors 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 1,492 companies tracked

RevenueBase identified 1,492 company matches for municipal water treatment contractors associated with the United States as of September 2026 and tracks 26,460 professional contacts across them, including 10,268 with verified work emails. Houston is the largest hub.

This list covers company matches for municipal water treatment contractors 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

1,492Companies

26,460Contacts tracked

10,268Verified emails

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The 25 largest municipal water treatment contractors based in the United States

Ranked by team size

Top 25 of 1,492 company matches for municipal water treatment contractors 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	Core & Main	Exact match	St. Louis, MO, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,165 contacts →
	Exact match “Based in St.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	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
3	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
4	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
5	Culligan By Waterco	Exact match	Lombard, IL, United StatesHQ recorded Sep 17, 2026	501-1,000	265 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 17, 2026 · View company records in RevenueBase
6	Toho Water Authority	Exact match	Kissimmee, FL, United StatesHQ recorded Sep 17, 2026	501-1,000	256 contacts →
	Exact match “Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	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
8	Alcosan	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 17, 2026	201-500	242 contacts →
	Exact match “ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Usabluebook	Exact match	Waukegan, IL, United StatesHQ recorded Sep 17, 2026	5,001-10,000	241 contacts →
	Exact match “Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Aqua-Aerobic Systems, INC	Exact match	Loves Park, IL, United StatesHQ recorded Sep 17, 2026	51-200	207 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Fluence Corporation	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 17, 2026	201-500	195 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 17, 2026 · View company records in RevenueBase
12	Newterra	Exact match	Coraopolis, PA, United StatesHQ recorded Sep 17, 2026	201-500	185 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 17, 2026 · View company records in RevenueBase
13	Felix Construction Company	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 17, 2026	201-500	178 contacts →
	Exact match “Felix Construction Company is a general engineering contractor and construction management company with a specific focus on: Water production facilities, well sites, booster pump…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Smith & Loveless INC	Exact match	Lenexa, KS, United StatesHQ recorded Sep 17, 2026	201-500	172 contacts →
	Exact match “S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Middlesex Water Company	Exact match	Iselin, NJ, United StatesHQ recorded Sep 17, 2026	201-500	156 contacts →
	Exact match “Middlesex Water Company (NASDAQ:MSEX) provides a full range of regulated and non-regulated water, wastewater utility and related services primarily in New Jersey and Delaware.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	City Of Austin	Exact match	Austin, TX, United StatesHQ recorded Sep 17, 2026	n/a	154 contacts →
	Exact match “City of Austin - Austin Water Utility is an utilities company based out of 625 E 10TH ST, Austin, Texas, United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Metropolitan District Commission	Exact match	Hartford, CT, United StatesHQ recorded Sep 17, 2026	501-1,000	153 contacts →
	Exact match “The Metropolitan District (MDC) is a non-profit municipal corporation chartered by the Connecticut General Assembly in 1929 to provide potable water and sewerage services on a…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Aqua-Chem	Exact match	Knoxville, TN, United StatesHQ recorded Sep 17, 2026	201-500	152 contacts →
	Exact match “Aqua-Chem is the leader in providing Global Water Solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Palm Beach County Water Utilities Department	Exact match	West Palm Beach, FL, United StatesHQ recorded Sep 17, 2026	501-1,000	151 contacts →
	Exact match “The third largest water utility department in the State of Florida, the Palm Beach County Water Utilities Department (PBCWUD) provides drinking water, wastewater collection and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Clack Corporation	Exact match	Windsor, WI, United StatesHQ recorded Sep 17, 2026	201-500	142 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 17, 2026 · View company records in RevenueBase
21	Hasa Pool INC	Exact match	Saugus, CA, United StatesHQ recorded Sep 17, 2026	201-500	140 contacts →
	Exact match “HASA, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	UOSA	Exact match	Leesburg, VA, United StatesHQ recorded Sep 17, 2026	51-200	130 contacts →
	Exact match “Water Reclamation Plant” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Rice Lake Construction Group	Exact match	Deerwood, MN, United StatesHQ recorded Sep 17, 2026	201-500	125 contacts →
	Exact match “At Rice Lake Construction Group, we know water.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Barclay Water Management, INC	Exact match	Newton, MA, United StatesHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “Established in 1932 and headquartered in Newton, Massachusetts, Barclay Water Management, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Avantech, LLC	Exact match	Columbia, SC, United StatesHQ recorded Sep 17, 2026	51-200	117 contacts →
	Exact match “AVANTech, LLC is a comprehensive industrial water treatment solutions provider.” 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 “municipal water treatment contractors”. 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 1,492 municipal water treatment contractors based in the United States

See the full list, filter by size, metro and specialty, and access 10,268 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Municipal water treatment contractors based in the United States at a glance

As of Sep 17, 2026

38.8%Verified-email coverage

17.7Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

592

11-50

575

51-200

228

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 1,492 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 “municipal water treatment contractors” 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 10,268 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 “municipal water treatment contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,492 company matches for municipal water treatment contractors 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?

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

Which city has the most municipal water treatment contractors?

Houston leads with 30 company records, followed by Phoenix (15) and Indianapolis (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 10,268 professional contacts with verified work emails tracked across these 1,492 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.