Company lists · Data refreshed September 2026

Top 25 Emission control technology companies based in the United States

RevenueBase identified 176 company matches for emission control technology companies associated with the United States as of September 2026 and tracks 4,824 professional contacts across them, including 1,447 with verified work emails. Houston is the largest hub.

This list covers company matches for emission control technology companies 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
176Companies
4,824Contacts tracked
1,447Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest emission control technology companies based in the United States

Ranked by team size
Top 25 of 176 company matches for emission control technology companies 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 matchLouisville, KY, United StatesHQ recorded Sep 19, 20261,001-5,000806 contacts →

Exact match

“AAF International clean air products and systems offer the most comprehensive clean air solutions available in the world.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026501-1,000306 contacts →

Exact match

“With decades of operating history and innovation across our trusted brands, Cimarron provides technology-driven emissions management solutions for the global energy system.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchTulsa, OK, United StatesHQ recorded Sep 19, 2026501-1,000252 contacts →

Exact match

“MIRATECH is the global leader in emissions and acoustic control solutions for stationary natural gas and diesel engines, serving the power generation, oil and gas, data center…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchLincolnton, NC, United StatesHQ recorded Sep 19, 2026201-500199 contacts →

Exact match

“Cataler North America, a Toyota Motor Corporation affiliate, is a leading manufacturer of automotive catalysts that enhance the quality of the environment by filtering exhaust…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchMilwaukee, WI, United StatesHQ recorded Sep 19, 202651-200140 contacts →

Exact match

“Anguil Environmental provides highly-engineered, environmental equipment and service solutions that help clients solve complex industrial air and water challenges across the globe.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchDe Pere, WI, United StatesHQ recorded Sep 19, 2026501-1,000140 contacts →

Exact match

“Dürr Megtec is a leading global supplier of environmental control technologies and engineered products tailored to meet customers' industrial process requirements.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchWarrenville, IL, United StatesHQ recorded Sep 19, 202651-200113 contacts →

Exact match

“Fuel Tech provides multi-pollutant emissions control and water treatment technologies using a cost-effective and sustainable approach.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchOxnard, CA, United StatesHQ recorded Sep 19, 202611-5070 contacts →

Exact match

“CDTi Advanced Materials is a catalyst engineering and coating technology company serving emissions control, power generation, industrial, methane abatement, and carbon capture…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchBloomer, WI, United StatesHQ recorded Sep 19, 202651-20068 contacts →

Exact match

“Founded in 1950, Catalytic Combustion Corporation introduced industry-leading technology with the development of the first ever United States patented catalyst (U.S.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPen Argyl, PA, United StatesHQ recorded Sep 19, 202611-5057 contacts →

Exact match

“Founded in NESTEC, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchDublin, GA, United StatesHQ recorded Sep 19, 202651-20055 contacts →

Exact match

“Dinex is a trusted global partner in advanced exhaust and emission technologies, bringing over 40 years of OEM experience directly to the North American heavy-duty aftermarket.”

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

Exact match

“TANN Corporation designs and manufactures high-performance air pollution control systems built to meet the most demanding industrial applications.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchLong Beach, CA, United StatesHQ recorded Sep 19, 202611-5051 contacts →

Exact match

“STAX is an emerging leader in emissions reduction services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 19, 202651-20050 contacts →

Exact match

“Conifer Systems designs, manufactures and installs state-of-the-art emissions control systems and provides aftermarket services to enable industries to meet and exceed their…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchMontgomeryville, PA, United StatesHQ recorded Sep 19, 202651-20048 contacts →

Exact match

“ESW Group® was founded in 1998 as an R&D company with the goal to develop ceramic based catalytic converters for the automotive industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchAlpharetta, GA, United StatesHQ recorded Sep 19, 202651-20045 contacts →

Exact match

“Welcome to ENERVEX.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchAmerican Canyon, CA, United StatesHQ recorded Sep 19, 202611-5043 contacts →

Exact match

“EnviroCare International, Inc- A CECO Environmental Brand.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchConroe, TX, United StatesHQ recorded Sep 19, 202651-20042 contacts →

Exact match

“Epcon Industrial Systems specializes in designing and manufacturing of pre-engineered and pre-tested Regenerative Thermal Oxidizers, Recuperative Thermal Oxidizers, Afterburners…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchAustin, TX, United StatesHQ recorded Sep 19, 202651-20037 contacts →

Exact match

“From a simple beginning to a multi-national leader supplying critical combustion, vapor recovery and emissions control technology to protect the environment, the Encore Combustion…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchSignal Hill, CA, United StatesHQ recorded Sep 19, 202611-5037 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchKaty, TX, United StatesHQ recorded Sep 19, 202651-20036 contacts →

Exact match

“Formed in 2010 and headquartered in Houston, Texas, Encino Environmental Services, LLC is an emissions testing, monitoring, and compliance support firm serving critical…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchFranklin, MA, United StatesHQ recorded Sep 19, 202611-5035 contacts →

Exact match

“Rypos is driven to address climate change through clean air technology.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchLebanon, PA, United StatesHQ recorded Sep 19, 202651-20032 contacts →

Exact match

“Announcement: MET will be adopting a telecommuting posture until further notice to maintain Covid-19 safety precautions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchHagerstown, MD, United StatesHQ recorded Sep 19, 202651-20030 contacts →

Exact match

“Through its Air Pollution Control activity, Fives aims at reducing environmental impact of the industrial and combustion processes.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchOwosso, MI, United StatesHQ recorded Sep 19, 202651-20029 contacts →

Exact match

“Tri-Mer Corporation, established in 1960, specializes in comprehensive air pollution control solutions.”

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

Showing 25 of 176 emission control technology companies based in the United States

See the full list, filter by size, metro and specialty, and access 1,447 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Emission control technology companies based in the United States at a glance

As of Sep 19, 2026
30.0%Verified-email coverage
27.4Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
66
51-200
30
201-500
8
501-1,000
3
1,001-5,000
3

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 176 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 “emission control technology companies” 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 1,447 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 “emission control technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many emission control technology companies are there based in the United States?

RevenueBase identified 176 company matches for emission control technology companies 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?

AAF International American AIR Filter tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most emission control technology companies?

Houston leads with 6 company records, followed by Tulsa (5) and Dallas (3).

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 1,447 professional contacts with verified work emails tracked across these 176 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.

Ready to reach these companies? Verified emails and direct dials for all 176 emission control technology companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.