Company lists · Data refreshed October 2026

Top 25 Industrial wastewater treatment installers based in the United States

RevenueBase identified 1,492 company matches for industrial wastewater treatment installers associated with the United States as of October 2026 and tracks 37,241 professional contacts across them, including 13,751 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial wastewater treatment installers 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 16, 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 16, 2026 How this list was built
1,492Companies
37,241Contacts tracked
13,751Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest industrial wastewater treatment installers based in the United States

Ranked by team size
Top 25 of 1,492 company matches for industrial wastewater treatment installers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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 matchWashington, DC, United StatesHQ recorded Oct 16, 202610001+2,590 contacts →

Exact match

“Evoqua has now joined Xylem.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 16, 20261,001-5,0001,811 contacts →

Exact match

“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3Exact matchGlen Allen, VA, United StatesHQ recorded Oct 16, 20261,001-5,0001,475 contacts →

Exact match

“At ChemTreat, we understand that water is a vital resource for our planet.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4Exact matchCanonsburg, PA, United StatesHQ recorded Oct 16, 2026501-1,000968 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 · Oct 16, 2026 · View company records in RevenueBase
5Exact matchWilmington, DE, United StatesHQ recorded Oct 16, 202610001+901 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6Exact matchWoburn, MA, United StatesHQ recorded Oct 16, 20261,001-5,000874 contacts →

Exact match

“Gradiant is a Different Kind of Water Company.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7Exact matchAddison, TX, United StatesHQ recorded Oct 16, 20261,001-5,000692 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 · Oct 16, 2026 · View company records in RevenueBase
8Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
9Exact matchIrving, TX, United StatesHQ recorded Oct 16, 2026501-1,000462 contacts →

Exact match

“Liquid Environmental Solutions - the largest, exclusively non-hazardous US wastewater collection and disposal company, is known for innovation and leadership in protecting…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10Exact matchWaukegan, IL, United StatesHQ recorded Oct 16, 2026201-500401 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 · Oct 16, 2026 · View company records in RevenueBase
11Exact matchFort Lauderdale, FL, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
12Exact matchOld Saybrook, CT, United StatesHQ recorded Oct 16, 2026501-1,000297 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 · Oct 16, 2026 · View company records in RevenueBase
13Exact matchLombard, IL, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
14Exact matchDenver, NC, United StatesHQ recorded Oct 16, 2026201-500252 contacts →

Exact match

“HUBER Technology, LLC, the U.S.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15Exact matchMonroe, OH, United StatesHQ recorded Oct 16, 2026201-500251 contacts →

Exact match

“Valicor is a trusted partner for sustainable waste management solutions.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16Exact matchWaukegan, IL, United StatesHQ recorded Oct 16, 20265,001-10,000242 contacts →

Exact match

“Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17Exact matchCincinnati, OH, United StatesHQ recorded Oct 16, 2026501-1,000238 contacts →

Exact match

“Superior Environmental Solutions (SES) is a one-source partner for industrial and environmental services.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18Exact matchBaltimore, MD, United StatesHQ recorded Oct 16, 2026501-1,000235 contacts →

Exact match

“Water powers life.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19Exact matchLoves Park, IL, United StatesHQ recorded Oct 16, 202651-200224 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 16, 2026201-500206 contacts →

Exact match

“Stage 3 Separation is North America’s leading service provider for fluid conservation, solids control and waste mitigation.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21Exact matchCoraopolis, PA, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
22Exact matchMinneapolis, MN, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
23Exact matchSt Michael, MN, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
24Exact matchLenexa, KS, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
25Exact matchSutherlin, OR, United StatesHQ recorded Oct 16, 2026201-500173 contacts →

Exact match

“Nobody wants to worry about whether their wastewater is contaminating nearby rivers, streams, and wells.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

Showing 25 of 1,492 industrial wastewater treatment installers based in the United States

See the full list, filter by size, metro and specialty, and access 13,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Industrial wastewater treatment installers based in the United States at a glance

As of Oct 16, 2026
36.9%Verified-email coverage
25.0Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Houston
Oct 16, 2026Page data refreshed

Companies by employee count

1-10
572
11-50
608
51-200
222
201-500
49
501-1,000
14
1,001-5,000
12
5,001-10,000
6
10001+
5

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 “industrial wastewater treatment installers” 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 13,751 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 16, 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.

Industrial wastewater treatment installers by metro

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 wastewater treatment installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,492 company matches for industrial wastewater treatment installers 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?

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

Which city has the most industrial wastewater treatment installers?

Houston leads with 42 company records, followed by Austin (13) and Atlanta (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 13,751 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 October 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,492 industrial wastewater treatment installers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.