Company lists · Data refreshed October 2026

Top 25 Drinking water treatment plant contractors based in the United States

RevenueBase identified 1,087 company matches for drinking water treatment plant contractors associated with the United States as of October 2026 and tracks 15,949 professional contacts across them, including 5,633 with verified work emails. Houston is the largest hub.

This list covers company matches for drinking water treatment plant 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 October 11, 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 11, 2026 How this list was built
1,087Companies
15,949Contacts tracked
5,633Verified emails
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The 25 largest drinking water treatment plant contractors based in the United States

Ranked by team size
Top 25 of 1,087 company matches for drinking water treatment plant contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchWilmington, DE, United StatesHQ recorded Oct 11, 202610001+901 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 11, 2026501-1,000577 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 11, 2026 · View company records in RevenueBase
3Exact matchFort Lauderdale, FL, United StatesHQ recorded Oct 11, 202651-200356 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 · Oct 11, 2026 · View company records in RevenueBase
4Exact matchLombard, IL, United StatesHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
5Exact matchLoves Park, IL, United StatesHQ recorded Oct 11, 202651-200224 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchCoraopolis, PA, United StatesHQ recorded Oct 11, 2026201-500191 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 · Oct 11, 2026 · View company records in RevenueBase
7Exact matchMinneapolis, MN, United StatesHQ recorded Oct 11, 2026201-500191 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 · Oct 11, 2026 · View company records in RevenueBase
8Exact matchPhoenix, AZ, United StatesHQ recorded Oct 11, 2026501-1,000181 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 · Oct 11, 2026 · View company records in RevenueBase
9Exact matchSt Michael, MN, United StatesHQ recorded Oct 11, 2026201-500176 contacts →

Exact match

“Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchLenexa, KS, United StatesHQ recorded Oct 11, 2026201-500173 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 · Oct 11, 2026 · View company records in RevenueBase
11Exact matchColumbia, SC, United StatesHQ recorded Oct 11, 202651-200131 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchLeesburg, VA, United StatesHQ recorded Oct 11, 202651-200127 contacts →

Exact match

“Water Reclamation Plant”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchDeerwood, MN, United StatesHQ recorded Oct 11, 2026201-500124 contacts →

Exact match

“At Rice Lake Construction Group, we know water.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchWharton, NJ, United StatesHQ recorded Oct 11, 202651-200118 contacts →

Exact match

“GWTT is one of the only U.S.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchAustin, TX, United StatesHQ recorded Oct 11, 202651-200101 contacts →

Exact match

“We make water better.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchOklahoma City, OK, United StatesHQ recorded Oct 11, 202651-20098 contacts →

Exact match

“At World Water Works, we strive to provide industrial and municipal customers with proven and cost-effective wastewater treatment solutions that deliver superior effluent quality.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchGraham, NC, United StatesHQ recorded Oct 11, 202651-20096 contacts →

Exact match

“Why Pureflow?”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchDallas, TX, United StatesHQ recorded Oct 11, 202651-20094 contacts →

Exact match

“Gupta & Associates, Inc.(GAI) was established in Dallas, Texas in January to provide electrical and instrumentation control services for water treatment and wastewater treatment…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchCharlotte, NC, United StatesHQ recorded Oct 11, 202651-20091 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 · Oct 11, 2026 · View company records in RevenueBase
20Exact matchPalatine, IL, United StatesHQ recorded Oct 11, 202651-20089 contacts →

Exact match

“HOH is a leading water treatment chemical and service company, working to establish the new water technology standard at over facilities across the United States.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchMilpitas, CA, United StatesHQ recorded Oct 11, 202651-20086 contacts →

Exact match

“cleanwater1 is the leading provider of water quality solutions in the US and the only to offer a complete set of end-to-end water quality and wastewater treatment products and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchBuffalo, NY, United StatesHQ recorded Oct 11, 202651-20086 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 · Oct 11, 2026 · View company records in RevenueBase
23Exact matchDurham, NC, United StatesHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
24Exact matchMadison, WI, United StatesHQ recorded Oct 11, 202651-20082 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchPittsburgh, PA, United StatesHQ recorded Oct 11, 202651-20081 contacts →

Exact match

“One name.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 1,087 drinking water treatment plant contractors based in the United States

See the full list, filter by size, metro and specialty, and access 5,633 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drinking water treatment plant contractors based in the United States at a glance

As of Oct 11, 2026
35.3%Verified-email coverage
14.7Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · Houston
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
453
11-50
425
51-200
163
201-500
25
501-1,000
7
1,001-5,000
1
5,001-10,000
2
10001+
3

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 1,087 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 “drinking water treatment plant 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 5,633 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 11, 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 “drinking water treatment plant contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,087 company matches for drinking water treatment plant contractors 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?

Chem-Aqua, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most drinking water treatment plant contractors?

Houston leads with 24 company records, followed by Indianapolis (11) and Tampa (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 5,633 professional contacts with verified work emails tracked across these 1,087 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 11, 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.