Company lists · Data refreshed September 2026

Top 25 Sewage treatment plant manufacturers based in the United States

Name: Sewage treatment plant manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 418 companies tracked

RevenueBase identified 418 sewage treatment plant manufacturers headquartered in the United States as of September 2026 and tracks 7,986 professional contacts across them, including 3,257 with verified work emails. Houston is the largest hub.

This list covers sewage treatment plant manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

418Companies

7,986Contacts tracked

3,257Verified emails

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The 25 largest sewage treatment plant manufacturers based in the United States

Ranked by team size

Top 25 of 418 sewage treatment plant manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sewage treatment plant manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 29, 2026	501-1,000	554 contacts →
	Strong evidence “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
2	UCC Environmental	Partial evidence	Waukegan, IL, United StatesHQ checked Sep 29, 2026	201-500	389 contacts →
	Partial evidence “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Source: RevenueBase Database · checked Sep 29, 2026
3	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Strong evidence	Old Saybrook, CT, United StatesHQ checked Sep 29, 2026	501-1,000	295 contacts →
	Strong evidence “Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…” Source: RevenueBase Database · checked Sep 29, 2026
4	Prominent North America	Partial evidence	Pit, United StatesHQ checked Sep 29, 2026	201-500	251 contacts →
	Partial evidence “ProMinent North America is part of the global ProMinent Group, a pioneer in metering technology and water treatment solutions with roots in Heidelberg, Germany.” Source: RevenueBase Database · checked Sep 29, 2026
5	Huber Technology US	Indirect evidence	Denver, NC, United StatesHQ checked Sep 29, 2026	201-500	243 contacts →
	Indirect evidence “HUBER Technology, LLC, the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
6	Aqua-Aerobic Systems, INC	Indirect evidence	Loves Park, IL, United StatesHQ checked Sep 29, 2026	51-200	207 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
7	Fluence Corporation	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 29, 2026	201-500	195 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
8	Newterra	Strong evidence	Coraopolis, PA, United StatesHQ checked Sep 29, 2026	201-500	185 contacts →
	Strong evidence “Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Source: RevenueBase Database · checked Sep 29, 2026
9	Smith & Loveless INC	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 29, 2026	201-500	172 contacts →
	Partial evidence “S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Source: RevenueBase Database · checked Sep 29, 2026
10	Orenco Systems, INC	Indirect evidence	Sutherlin, OR, United StatesHQ checked Sep 29, 2026	201-500	170 contacts →
	Indirect evidence “Nobody wants to worry about whether their wastewater is contaminating nearby rivers, streams, and wells.” Source: RevenueBase Database · checked Sep 29, 2026
11	Tomorrow Water	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 29, 2026	51-200	133 contacts →
	Partial evidence “Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Source: RevenueBase Database · checked Sep 29, 2026
12	JWC Environmental	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 29, 2026	51-200	126 contacts →
	Indirect evidence “JWC Environmental, a Sulzer Company, is a global leader in solids reduction, separation and removal systems for customers in a broad range of municipal and industrial applications.” Source: RevenueBase Database · checked Sep 29, 2026
13	Avantech, LLC	Partial evidence	Columbia, SC, United StatesHQ checked Sep 29, 2026	51-200	117 contacts →
	Partial evidence “AVANTech, LLC is a comprehensive industrial water treatment solutions provider.” Source: RevenueBase Database · checked Sep 29, 2026
14	OLD Bissnuss INC	Indirect evidence	Loveland, OH, United StatesHQ checked Sep 29, 2026	11-50	111 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
15	World Water Works, INC	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 29, 2026	51-200	97 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026
16	Prochem INC	Indirect evidence	Elliston, VA, United StatesHQ checked Sep 29, 2026	51-200	95 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
17	EDI Environmental Dynamics International	Partial evidence	Columbia, MO, United StatesHQ checked Sep 29, 2026	201-500	87 contacts →
	Partial evidence “Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.” Source: RevenueBase Database · checked Sep 29, 2026
18	JIM Myers & Sons, Inc. JMS	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 29, 2026	51-200	86 contacts →
	Partial evidence “Founded in 1962, Jim Myers & Sons, Inc.(JMS) is a high-quality equipment manufacturer leading the way in the water & wastewater industry.” Source: RevenueBase Database · checked Sep 29, 2026
19	Integrated Water Services	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	51-200	86 contacts →
	Indirect evidence “We make water better.” Source: RevenueBase Database · checked Sep 29, 2026
20	Clean Water Technology	Indirect evidence	Gardena, CA, United StatesHQ checked Sep 29, 2026	51-200	83 contacts →
	Indirect evidence “Did you know you can remove up to 98% of contaminants from industrial wastewater while shrinking your chemical spend and footprint?” Source: RevenueBase Database · checked Sep 29, 2026
21	Hydro-Dyne Engineering, INC	Indirect evidence	Clearwater, FL, United StatesHQ checked Sep 29, 2026	51-200	80 contacts →
	Indirect evidence “At Hydro-Dyne® Engineering we take great pride in our products and services as well as our ability to provide equipment for a variety of water and wastewater screen applications.” Source: RevenueBase Database · checked Sep 29, 2026
22	Water & Wastewater Equipment Company	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 29, 2026	11-50	80 contacts →
	Partial evidence “Water and Wastewater Equipment Company has been providing efficient, cost-effective and compliant solutions to water and wastewater treatment applications for over 30 years.” Source: RevenueBase Database · checked Sep 29, 2026
23	Building Crafts, INC	Strong evidence	Wilder, KY, United StatesHQ checked Sep 29, 2026	51-200	76 contacts →
	Strong evidence “Building Crafts, Inc.(BCI) specializes as a general contractor primarily in the Design and Installation of industrial and municipal water and wastewater treatment plants.” Source: RevenueBase Database · checked Sep 29, 2026
24	Complete Filtration Resources, INC	Partial evidence	Marshfield, WI, United StatesHQ checked Sep 29, 2026	11-50	62 contacts →
	Partial evidence “We design and manufacture a full line of components for our membrane filtration & wastewater systems.Together with our fabrication and installation partners around the world we…” Source: RevenueBase Database · checked Sep 29, 2026
25	Wigen Water Technologies	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 29, 2026	51-200	62 contacts →
	Partial evidence “Founded in 1965, Wigen Water Technologies® is a global leader in the production of custom water treatment systems, specializing in cost-effective and reliable solutions for…” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sewage treatment plant manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sewage treatment plant manufacturers.
Partial evidence: Its own public description names part of sewage treatment plant manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sewage treatment plant manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 418 sewage treatment plant manufacturers based in the United States

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Sewage treatment plant manufacturers based in the United States at a glance

As of Sep 29, 2026

40.8%Verified-email coverage

19.1Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

138

11-50

182

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 418 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sewage treatment plant manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “sewage treatment plant manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sewage treatment plant manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sewage treatment plant manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,257 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sewage treatment plant manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sewage treatment plant manufacturers are there based in the United States?

RevenueBase identified 418 sewage treatment plant manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Westech Engineering, headquartered in Salt Lake City, tops this list with the largest team on record.

Which city has the most sewage treatment plant manufacturers?

Houston leads with 11 headquartered companies, followed by Tampa (6) and Austin (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,257 verified decision-maker contacts tracked across these 418 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.