Company lists · Data refreshed September 2026

Top 25 Biological treatment system installers based in the United States

RevenueBase identified 269 company matches for biological treatment system installers associated with the United States as of September 2026 and tracks 3,317 professional contacts across them, including 1,199 with verified work emails. Los Angeles is the largest hub.

This list covers company matches for biological treatment system 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 September 19, 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 Sep 19, 2026 How this list was built
269Companies
3,317Contacts tracked
1,199Verified emails
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The 25 largest biological treatment system installers based in the United States

Ranked by team size
Top 25 of 269 company matches for biological treatment system installers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchOld Saybrook, CT, United StatesHQ recorded Sep 19, 2026501-1,000295 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 · Sep 19, 2026 · View company records in RevenueBase
2Exact matchLenexa, KS, United StatesHQ recorded Sep 19, 2026201-500172 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 · Sep 19, 2026 · View company records in RevenueBase
3Exact matchSutherlin, OR, United StatesHQ recorded Sep 19, 2026201-500170 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchAnaheim, CA, United StatesHQ recorded Sep 19, 202651-200133 contacts →

Exact match

“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchOklahoma City, OK, United StatesHQ recorded Sep 19, 202651-20097 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 · Sep 19, 2026 · View company records in RevenueBase
6Exact matchElliston, VA, United StatesHQ recorded Sep 19, 202651-20095 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchColumbia, MO, United StatesHQ recorded Sep 19, 2026201-50087 contacts →

Exact match

“Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchAustin, TX, United StatesHQ recorded Sep 19, 202651-20086 contacts →

Exact match

“We make water better.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchGardena, CA, United StatesHQ recorded Sep 19, 202651-20083 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 · Sep 19, 2026 · View company records in RevenueBase
10Exact matchCleveland, OH, United StatesHQ recorded Sep 19, 202611-5080 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 · Sep 19, 2026 · View company records in RevenueBase
11Exact matchHartland, WI, United StatesHQ recorded Sep 19, 202651-20059 contacts →

Exact match

“The Probst Group, LLC (TPG) is an engineering firm specializing in industrial wastewater management.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchBakersfield, CA, United StatesHQ recorded Sep 19, 202651-20054 contacts →

Exact match

“Clear Creek Systems is a leading provider of water treatment systems and services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchDavis, CA, United StatesHQ recorded Sep 19, 202651-20047 contacts →

Exact match

“We believe in a world where business, people, and the planet thrive.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchVoorhees, NJ, United StatesHQ recorded Sep 19, 202651-20046 contacts →

Exact match

“BioAir Solutions, LLC is the leading provider worldwide of biological odor and air emission control solutions for municipalities and industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 19, 202651-20045 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 · Sep 19, 2026 · View company records in RevenueBase
16Exact matchAustin, United StatesHQ recorded Sep 19, 202651-20042 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 · Sep 19, 2026 · View company records in RevenueBase
17Exact matchLudington, MI, United StatesHQ recorded Sep 19, 202651-20042 contacts →

Exact match

“The Leading Manufacturer of Reliable Rental, New and Used, Environmental Remediation Treatment Systems and Services to Consultants and their Clients and… The National Leader in…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchGreensboro, NC, United StatesHQ recorded Sep 19, 202611-5032 contacts →

Exact match

“Anua is an American company that provides sustainable Clean Water and Clean Air solutions for the Western Hemisphere.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchSandy, UT, United StatesHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“ClearStream Environmental engineers high-performance water and wastewater treatment solutions for municipal and industrial applications.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchCentennial, CO, United StatesHQ recorded Sep 19, 202611-5029 contacts →

Exact match

“At Triplepoint Environmental, we believe lagoons do it better.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchCinnaminson Township, NJ, United StatesHQ recorded Sep 19, 202651-20029 contacts →

Exact match

“Municipal Maintenance Company is the region's leader in service, sales, and installation of water and wastewater treatment equipment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchLenexa, KS, United StatesHQ recorded Sep 19, 202651-20029 contacts →

Exact match

“Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchLos Angeles, CA, United StatesHQ recorded Sep 19, 202611-5027 contacts →

Exact match

“We are the premier manufacturer of fully-automated, skid-mounted pH Adjustment Systems, Pump Lift Stations, Chemical Collection Cabinets, Solvent Collection Cabinets, Heavy Metal…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLouisville, KY, United StatesHQ recorded Sep 19, 202611-5026 contacts →

Exact match

“Hydro Solutions, Inc, a multi-million dollar company, was founded in 1993 to focus on developing a nationwide business which specializes in providing engineered solutions for…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchMadison, WI, United StatesHQ recorded Sep 19, 202611-5026 contacts →

Exact match

“In Aquafix started with the goal of developing great bio-technologies to the people who work in the wastewater industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 269 biological treatment system installers based in the United States

See the full list, filter by size, metro and specialty, and access 1,199 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Biological treatment system installers based in the United States at a glance

As of Sep 19, 2026
36.1%Verified-email coverage
12.3Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Los Angeles
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
112
51-200
29
201-500
7
501-1,000
1
1,001-5,000
1
5,001-10,000
1

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 269 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 “biological treatment system 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 1,199 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 September 19, 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 “biological treatment system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many biological treatment system installers are there based in the United States?

RevenueBase identified 269 company matches for biological treatment system installers associated with the United States as of September 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?

Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most biological treatment system installers?

Los Angeles leads with 5 company records, followed by Charlotte (4) and Cleveland (4).

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 1,199 professional contacts with verified work emails tracked across these 269 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 September 19, 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.