Company lists · Data refreshed September 2026

Top 25 Sewage treatment software companies based in the United States

Name: Sewage treatment software companies 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 427 companies tracked

RevenueBase identified 427 sewage treatment software companies headquartered in the United States as of September 2026 and tracks 6,573 professional contacts across them, including 2,650 with verified work emails. Houston is the largest hub.

This list covers sewage treatment software companies 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

427Companies

6,573Contacts tracked

2,650Verified emails

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The 25 largest sewage treatment software companies based in the United States

Ranked by team size

Top 25 of 427 sewage treatment software companies 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 software companies: 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	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 29, 2026	501-1,000	554 contacts →
	Partial 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	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Partial evidence	Old Saybrook, CT, United StatesHQ checked Sep 29, 2026	501-1,000	295 contacts →
	Partial 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
3	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
4	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
5	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
6	Newterra	Partial evidence	Coraopolis, PA, United StatesHQ checked Sep 29, 2026	201-500	185 contacts →
	Partial 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
7	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
8	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
9	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
10	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
11	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
12	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
13	Streamline Innovations	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 29, 2026	51-200	94 contacts →
	Indirect evidence “Streamline deploys advanced technology solutions for water & gas treating and related processes in the oil & gas, utilities, and industrial markets.” Source: RevenueBase Database · checked Sep 29, 2026
14	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
15	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
16	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
17	Clear Water Services	Indirect evidence	Everett, WA, United StatesHQ checked Sep 29, 2026	51-200	72 contacts →
	Indirect evidence “Clear Water Services provides innovative stormwater, groundwater, and process water solutions custom-designed for each client's unique goals, challenges, and mission.” Source: RevenueBase Database · checked Sep 29, 2026
18	DHI	Partial evidence	Vernal, UT, United StatesHQ checked Sep 29, 2026	51-200	71 contacts →
	Partial evidence “DHI delivers integrated water movement, treatment, separation, automation, and infrastructure systems for industrial, energy, agricultural, and environmental applications.” Source: RevenueBase Database · checked Sep 29, 2026
19	Autodesk Water Infrastructure	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	63 contacts →
	Partial evidence “We’re building innovative, industry-leading software for the water industry.” Source: RevenueBase Database · checked Sep 29, 2026
20	Emco Group	Partial evidence	Canton, MA, United StatesHQ checked Sep 29, 2026	51-200	60 contacts →
	Partial evidence “EMCO Group is a well-established company with over 44 years of experience in the water and wastewater treatment industry.” Source: RevenueBase Database · checked Sep 29, 2026
21	The Probst Group	Indirect evidence	Hartland, WI, United StatesHQ checked Sep 29, 2026	51-200	59 contacts →
	Indirect evidence “The Probst Group, LLC (TPG) is an engineering firm specializing in industrial wastewater management.” Source: RevenueBase Database · checked Sep 29, 2026
22	Clear Creek Systems	Partial evidence	Bakersfield, CA, United StatesHQ checked Sep 29, 2026	51-200	54 contacts →
	Partial evidence “Clear Creek Systems is a leading provider of water treatment systems and services.” Source: RevenueBase Database · checked Sep 29, 2026
23	TSG Water Resources, INC	Partial evidence	Gainesville, FL, United StatesHQ checked Sep 29, 2026	11-50	49 contacts →
	Partial evidence “We Design, Manufacture & Operate Water and Wastewater Treatment Plants.” Source: RevenueBase Database · checked Sep 29, 2026
24	Monroe Environmental Corp	Partial evidence	Monroe, MI, United StatesHQ checked Sep 29, 2026	51-200	45 contacts →
	Partial evidence “Monroe Environmental is a premier provider of water/wastewater treatment and air pollution control systems and services in the United States and throughout the world.” Source: RevenueBase Database · checked Sep 29, 2026
25	Headworks International	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	45 contacts →
	Indirect evidence “Every day, Headworks International devotes its considerable resources to meet the world’s demand for our most precious resource: clean water.” 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 software companies. 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 software companies.
Partial evidence: Its own public description names part of sewage treatment software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sewage treatment software companies. 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 427 sewage treatment software companies based in the United States

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Sewage treatment software companies based in the United States at a glance

As of Sep 29, 2026

40.3%Verified-email coverage

15.4Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

180

11-50

178

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 427 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 software companies, 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 software companies”. 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 software companies), 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 software companies, 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, 2,650 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 software companies, 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 software companies are there based in the United States?

RevenueBase identified 427 sewage treatment software companies 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 software companies?

Houston leads with 11 headquartered companies, followed by Los Angeles (6) and Phoenix (6).

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 2,650 verified decision-maker contacts tracked across these 427 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.