Company lists · Data refreshed September 2026

Top 25 Wastewater treatment biogas companies based in the United States

Name: Wastewater treatment biogas 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 22, 2026 288 companies tracked

RevenueBase identified 288 wastewater treatment biogas companies headquartered in the United States as of September 2026 and tracks 4,007 professional contacts across them, including 1,590 with verified work emails. Houston is the largest hub.

This list covers wastewater treatment biogas 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 22, 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 22, 2026 86% judged on-target in blind review

288Companies

4,007Contacts tracked

1,590Verified emails

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The 25 largest wastewater treatment biogas companies based in the United States

Ranked by team size

Top 25 of 288 wastewater treatment biogas companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment biogas 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	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Strong evidence	Old Saybrook, CT, United StatesHQ checked Sep 22, 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 22, 2026
2	Valicor	Indirect evidence	Monroe, OH, United StatesHQ checked Sep 22, 2026	201-500	254 contacts →
	Indirect evidence “Valicor is a trusted partner for sustainable waste management solutions.” Source: RevenueBase Database · checked Sep 22, 2026
3	Huber Technology US	Indirect evidence	Denver, NC, United StatesHQ checked Sep 22, 2026	201-500	243 contacts →
	Indirect evidence “HUBER Technology, LLC, the U.S.” Source: RevenueBase Database · checked Sep 22, 2026
4	Fluence Corporation	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 22, 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 22, 2026
5	Tomorrow Water	Strong evidence	Anaheim, CA, United StatesHQ checked Sep 22, 2026	51-200	133 contacts →
	Strong evidence “Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Source: RevenueBase Database · checked Sep 22, 2026
6	World Water Works, INC	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 22, 2026	51-200	97 contacts →
	Strong 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 22, 2026
7	Nacelle Solutions	Partial evidence	Charleston, WV, United StatesHQ checked Sep 22, 2026	51-200	96 contacts →
	Partial evidence “Nacelle is a gas conditioning and processing company serving two distinct markets: biogas and oil and gas.” Source: RevenueBase Database · checked Sep 22, 2026
8	Streamline Innovations	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 22, 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 22, 2026
9	Biogas Engineering	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 22, 2026	51-200	91 contacts →
	Partial evidence “Biogas Engineering is an award winning, one of the fastest growing companies in field of Renewable Natural Gas.” Source: RevenueBase Database · checked Sep 22, 2026
10	EDI Environmental Dynamics International	Partial evidence	Columbia, MO, United StatesHQ checked Sep 22, 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 22, 2026
11	Clean Water Technology	Partial evidence	Gardena, CA, United StatesHQ checked Sep 22, 2026	51-200	83 contacts →
	Partial 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 22, 2026
12	Water & Wastewater Equipment Company	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 22, 2026	11-50	80 contacts →
	Strong 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 22, 2026
13	BCR	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 22, 2026	11-50	58 contacts →
	Indirect evidence “BCR Environmental Corporation is a U.S.” Source: RevenueBase Database · checked Sep 22, 2026
14	Aries Clean Technologies	Indirect evidence	Franklin, TN, United StatesHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “Every time you flush the toilet, your waste goes on a journey most don’t think about.” Source: RevenueBase Database · checked Sep 22, 2026
15	TSG Water Resources, INC	Strong evidence	Gainesville, FL, United StatesHQ checked Sep 22, 2026	11-50	49 contacts →
	Strong evidence “We Design, Manufacture & Operate Water and Wastewater Treatment Plants.” Source: RevenueBase Database · checked Sep 22, 2026
16	Unison Solutions, INC	Indirect evidence	Dubuque, IA, United StatesHQ checked Sep 22, 2026	51-200	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
17	Biofiltro	Indirect evidence	Davis, CA, United StatesHQ checked Sep 22, 2026	51-200	47 contacts →
	Indirect evidence “We believe in a world where business, people, and the planet thrive.” Source: RevenueBase Database · checked Sep 22, 2026
18	Headworks International	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 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 22, 2026
19	Orion Water Solutions	Partial evidence	Austin, United StatesHQ checked Sep 22, 2026	51-200	42 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
20	Proact Services Corporation	Partial evidence	Ludington, MI, United StatesHQ checked Sep 22, 2026	51-200	42 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
21	Regenis	Indirect evidence	Lynden, WA, United StatesHQ checked Sep 22, 2026	51-200	41 contacts →
	Indirect evidence “On a planet with over seven billion people, our mission is to re-imagine reusable resources to create a valuable supply chain of products for farms, food processors and…” Source: RevenueBase Database · checked Sep 22, 2026
22	Cambrian	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “At Cambrian our vision is simple: industry is an ecosystem.” Source: RevenueBase Database · checked Sep 22, 2026
23	UGS	Strong evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	31 contacts →
	Strong evidence “UGS Unconventional Gas Solutions, designs and builds Gas treatment systems including Biogas upgrading, Compression, Acid Gas Removal, Dehydration, BTU Reduction, Heavy Hydrocarbon…” Source: RevenueBase Database · checked Sep 22, 2026
24	Triplepoint Environmental	Indirect evidence	Centennial, CO, United StatesHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “At Triplepoint Environmental, we believe lagoons do it better.” Source: RevenueBase Database · checked Sep 22, 2026
25	Biomicrobics, Inc.	Strong evidence	Lenexa, KS, United StatesHQ checked Sep 22, 2026	51-200	29 contacts →
	Strong evidence “Water \| Wastewater \| Greywater \| Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea.” Source: RevenueBase Database · checked Sep 22, 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: wastewater treatment biogas 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 wastewater treatment biogas companies.
Partial evidence: Its own public description names part of wastewater treatment biogas companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment biogas 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 288 wastewater treatment biogas companies based in the United States

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Wastewater treatment biogas companies based in the United States at a glance

As of Sep 22, 2026

39.7%Verified-email coverage

13.9Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

116

11-50

124

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 288 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 wastewater treatment biogas 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 “wastewater treatment biogas 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 wastewater treatment biogas 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 wastewater treatment biogas 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, 1,590 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 22, 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 wastewater treatment biogas 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 wastewater treatment biogas companies are there based in the United States?

RevenueBase identified 288 wastewater treatment biogas 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?

Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions, headquartered in Old Saybrook, tops this list with the largest team on record.

Which city has the most wastewater treatment biogas companies?

Houston leads with 6 headquartered companies, followed by Milwaukee (5) and Charlotte (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 1,590 verified decision-maker contacts tracked across these 288 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 22, 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.