Company lists · Data refreshed October 2026

Top 25 Commercial wastewater treatment system suppliers based in the United States

Name: Commercial wastewater treatment system suppliers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 23, 2026 406 companies tracked

RevenueBase identified 406 company matches for commercial wastewater treatment system suppliers associated with the United States as of October 2026 and tracks 5,996 professional contacts across them, including 2,199 with verified work emails. Houston is the largest hub.

This list covers company matches for commercial wastewater treatment system suppliers 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 23, 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 23, 2026 How this list was built

406Companies

5,996Contacts tracked

2,199Verified emails

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The 25 largest commercial wastewater treatment system suppliers based in the United States

Ranked by team size

Top 25 of 406 company matches for commercial wastewater treatment system suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 23, 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 23, 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 23, 2026 · View company records in RevenueBase
2	Parkson Corporation	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Oct 23, 2026	51-200	356 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 23, 2026 · View company records in RevenueBase
3	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Exact match	Old Saybrook, CT, United StatesHQ recorded Oct 23, 2026	501-1,000	297 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 23, 2026 · View company records in RevenueBase
4	Culligan By Waterco	Exact match	Lombard, IL, United StatesHQ recorded Oct 23, 2026	501-1,000	277 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 23, 2026 · View company records in RevenueBase
5	Aqua-Aerobic Systems, INC	Exact match	Loves Park, IL, United StatesHQ recorded Oct 23, 2026	51-200	224 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
6	Fluence Corporation	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 23, 2026	201-500	191 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 23, 2026 · View company records in RevenueBase
7	Smith & Loveless INC	Exact match	Lenexa, KS, United StatesHQ recorded Oct 23, 2026	201-500	173 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 23, 2026 · View company records in RevenueBase
8	Orenco Systems, INC	Exact match	Sutherlin, OR, United StatesHQ recorded Oct 23, 2026	201-500	173 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 23, 2026 · View company records in RevenueBase
9	OLD Bissnuss INC	Exact match	Loveland, OH, United StatesHQ recorded Oct 23, 2026	11-50	111 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
10	Integrated Water Services	Exact match	Austin, TX, United StatesHQ recorded Oct 23, 2026	51-200	101 contacts →
	Exact match “We make water better.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
11	World Water Works, INC	Exact match	Oklahoma City, OK, United StatesHQ recorded Oct 23, 2026	51-200	98 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 23, 2026 · View company records in RevenueBase
12	Clean Water Technology	Exact match	Gardena, CA, United StatesHQ recorded Oct 23, 2026	51-200	88 contacts →
	Exact match “Did you know you can remove up to 98% of contaminants from industrial wastewater while shrinking your chemical spend and footprint?” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
13	Water & Wastewater Equipment Company	Exact match	Cleveland, OH, United StatesHQ recorded Oct 23, 2026	11-50	80 contacts →
	Exact match “Water and Wastewater Equipment Company has been providing efficient, cost-effective and compliant solutions to water and wastewater treatment applications for over 30 years.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
14	Emco Group	Exact match	Canton, MA, United StatesHQ recorded Oct 23, 2026	51-200	67 contacts →
	Exact match “EMCO Group is a well-established company with over 44 years of experience in the water and wastewater treatment industry.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
15	Clear Creek Systems	Exact match	Bakersfield, CA, United StatesHQ recorded Oct 23, 2026	51-200	61 contacts →
	Exact match “Clear Creek Systems is a leading provider of water treatment systems and services.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
16	Ameriwater	Exact match	Dayton, OH, United StatesHQ recorded Oct 23, 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 23, 2026 · View company records in RevenueBase
17	Prochem INC	Exact match	Elliston, VA, United StatesHQ recorded Oct 23, 2026	51-200	59 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
18	Kemco Systems	Exact match	Clearwater, FL, United StatesHQ recorded Oct 23, 2026	51-200	54 contacts →
	Exact match “Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
19	Advantage Controls	Exact match	Muskogee, OK, United StatesHQ recorded Oct 23, 2026	51-200	52 contacts →
	Exact match “Advantage Controls was founded in 1994 with the basic belief in providing exceptional value to our customers and to treat them and our team members like family.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
20	Evans Equipment & Environmental	Exact match	Broussard, LA, United StatesHQ recorded Oct 23, 2026	51-200	50 contacts →
	Exact match “Nationwide Service.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
21	Puronics	Exact match	Livermore, CA, United StatesHQ recorded Oct 23, 2026	51-200	50 contacts →
	Exact match “Manufacturer of a complete line of water treatment systems for homes and businesses.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
22	Watersurplus	Exact match	Loves Park, IL, United StatesHQ recorded Oct 23, 2026	51-200	49 contacts →
	Exact match “WaterSurplus is a leader in sustainable water treatment, delivering high-performance solutions across industries.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
23	Charger Water Treatment Products	Exact match	Morton Grove, IL, United StatesHQ recorded Oct 23, 2026	51-200	46 contacts →
	Exact match “No matter what your water problem, Charger Water Treatment Products has a solution.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
24	Headworks International	Exact match	Houston, TX, United StatesHQ recorded Oct 23, 2026	51-200	46 contacts →
	Exact match “Every day, Headworks International devotes its considerable resources to meet the world’s demand for our most precious resource: clean water.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
25	Orion Water Solutions	Exact match	Austin, United StatesHQ recorded Oct 23, 2026	51-200	45 contacts →
	Exact match “ORION Water Solutions is composed of a group of industry proven water treatment engineers, automation experts, field operators, and technicians who have treated over 1 billion…” Recorded in the RevenueBase company graph · Oct 23, 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 wastewater treatment system suppliers”. 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 406 commercial wastewater treatment system suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 2,199 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial wastewater treatment system suppliers based in the United States at a glance

As of Oct 23, 2026

36.7%Verified-email coverage

14.8Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Oct 23, 2026Page data refreshed

Companies by employee count

1-10

162

11-50

171

51-200

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 406 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 wastewater treatment system suppliers” 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 2,199 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 23, 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 wastewater treatment system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial wastewater treatment system suppliers are there based in the United States?

RevenueBase identified 406 company matches for commercial wastewater treatment system suppliers 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 wastewater treatment system suppliers?

Houston leads with 9 company records, followed by Cleveland (6) and Tampa (6).

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 2,199 professional contacts with verified work emails tracked across these 406 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 23, 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.