Company lists · Data refreshed September 2026

Top 25 Automotive exhaust aftertreatment systems manufacturers worldwide

RevenueBase identified 412 company matches for automotive exhaust aftertreatment systems manufacturers worldwide as of September 2026 and tracks 17,550 professional contacts across them, including 3,321 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers company matches for automotive exhaust aftertreatment systems manufacturers worldwide, 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 29, 2026. Country and city lists for automotive exhaust aftertreatment systems manufacturers follow the table.

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 29, 2026 How this list was built
412Companies
17,550Contacts tracked
3,321Verified emails
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The 25 largest automotive exhaust aftertreatment systems manufacturers worldwide

Ranked by team size
Top 25 of 412 company matches for automotive exhaust aftertreatment systems manufacturers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchEsslingen, GermanyHQ recorded Sep 29, 202610001+2,353 contacts →

Exact match

“The Eberspächer Group is one of the world's leading system developers and suppliers to the automotive industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchEsslingen, GermanyHQ recorded Sep 29, 20265,001-10,0001,777 contacts →

Exact match

“Purem by Eberspaecher is a subsidiary of the Esslingen-based Eberspaecher Group.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLummen, TürkiyeHQ recorded Sep 29, 20261,001-5,000734 contacts →

Exact match

“Established in 1923 in Alkmaar, the BOSAL Group is a Dutch-registered company, headquartered in Lummen, Belgium.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchJacksonville, NC, United StatesHQ recorded Sep 29, 20261,001-5,000682 contacts →

Exact match

“Stanadyne is a global automotive technology leader in engine-based fuel and air management systems.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchConnersville, IN, United StatesHQ recorded Sep 29, 2026501-1,000582 contacts →

Exact match

“Stant’s tradition of innovation and quality began in 1898, when George Stant founded the company in Connersville, Indiana, USA.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchMiddelfart, DenmarkHQ recorded Sep 29, 20261,001-5,000446 contacts →

Exact match

“A leading developer and supplier of innovative Exhaust and Emission Technologies for Heavy Duty On- and Off-road applications.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchMadison, IN, United StatesHQ recorded Sep 29, 2026501-1,000433 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchSanta Catarina, MexicoHQ recorded Sep 29, 20261,001-5,000366 contacts →

Exact match

“Founded in 1993, Katcon is a global Tier 1 supplier of exhaust and aftertreatment systems, thermal insulation, and composite solutions for gasoline, diesel, hybrid, and EV…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchPithampur, IndiaHQ recorded Sep 29, 2026501-1,000316 contacts →

Exact match

“SPM AUTOCOMP SYSTEMS PRIVATE LIMITED is a manufacturing company of auto parts like exhaust manifold, turbo knuckles.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchBrantford, ON, CanadaHQ recorded Sep 29, 20261,001-5,000293 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchChennai, IndiaHQ recorded Sep 29, 2026201-500267 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchAurangabad, IndiaHQ recorded Sep 29, 20261,001-5,000230 contacts →

Exact match

“Laxmi Group Driving Excellence in Automotive Components and Surface Treatment Overview: Laxmi Group is a premier manufacturer and supplier of high-quality automobile components to…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLincolnton, NC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
14Exact matchLohmar, GermanyHQ recorded Sep 29, 2026501-1,000174 contacts →

Exact match

“Emitec Technologies GmbH was founded in 1986 as a joint venture between Siemens and GKN.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchGainsborough, United KingdomHQ recorded Sep 29, 2026201-500146 contacts →

Exact match

“Established in 1978, Eminox specialises in reducing exhaust emissions from heavy duty vehicles and equipment, which helps improve air quality and protect public health around the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchVaughan, ON, CanadaHQ recorded Sep 29, 2026201-500133 contacts →

Exact match

“DCL International Inc.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchBrazilHQ recorded Sep 29, 20261,001-5,000128 contacts →

Exact match

“A Mastra iniciou suas atividades em 1967, na cidade de Limeira, São Paulo.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchGoldsboro, NC, United StatesHQ recorded Sep 29, 2026501-1,000126 contacts →

Exact match

“AP Emissions Technologies manufactures a complete line of automotive, light truck, and heavy-duty exhaust, and emissions products.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchUnited StatesHQ recorded Sep 29, 2026201-500121 contacts →

Exact match

“Manufacturer of exhaust fuel tanks and functional parts for Toyota, Mitsubishi, and Subaru.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchBucaramanga, ColombiaHQ recorded Sep 29, 2026201-500112 contacts →

Exact match

“Partmo, es justo lo que necesitas!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchShanghai, ChinaHQ recorded Sep 29, 20261,001-5,00095 contacts →

Exact match

“TENNECO Tenneco Inc.(NYSE: TEN) is one of the world's leading designers, manufacturers and distributors of clean air and ride performance products and systems for the automotive…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchBursa, TürkiyeHQ recorded Sep 29, 2026201-50094 contacts →

Exact match

“Exhaust and Tube producer for the Automotive industry located in Turkey”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchCheadle, United KingdomHQ recorded Sep 29, 2026201-50089 contacts →

Exact match

“Covering 99% of Europe’s most popular cars, making us the fastest growing European manufacturer of aftermarket car parts today.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchDortmund, GermanyHQ recorded Sep 29, 202651-20075 contacts →

Exact match

“It is our mission to make the air cleaner - with exhaust aftertreatment systems made in Germany.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchPune, IndiaHQ recorded Sep 29, 2026201-50074 contacts →

Exact match

“Active Chromewell Exhaust is a world class provider of exhaust and emissions solutions including thermal management technologies for off highway vehicles, equipment applications…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 412 automotive exhaust aftertreatment systems manufacturers worldwide

See the full list, filter by size, metro and specialty, and access 3,321 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Automotive exhaust aftertreatment systems manufacturers worldwide at a glance

As of Sep 29, 2026
18.9%Verified-email coverage
42.6Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · Istanbul
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
126
11-50
124
51-200
76
201-500
46
501-1,000
16
1,001-5,000
14
5,001-10,000
3
10001+
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for automotive exhaust aftertreatment systems manufacturers are linked below.
What qualifies
Company records worldwide whose business descriptions match “automotive exhaust aftertreatment systems manufacturers” 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. 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 3,321 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 29, 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.

Automotive exhaust aftertreatment systems manufacturers by location

3 lists · largest first

Every Automotive exhaust aftertreatment systems manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “automotive exhaust aftertreatment systems manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many automotive exhaust aftertreatment systems manufacturers are there worldwide?

RevenueBase identified 412 company matches for automotive exhaust aftertreatment systems manufacturers worldwide 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?

Eberspächer Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most automotive exhaust aftertreatment systems manufacturers?

The United States leads with 61 companies, followed by Germany (49) and the United Kingdom (30). Every automotive exhaust aftertreatment systems manufacturers list by country and city is linked on this page.

Which city has the most automotive exhaust aftertreatment systems manufacturers?

Istanbul leads with 6 company records, followed by Pune (4) and Chennai (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 3,321 professional contacts with verified work emails tracked across these 412 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 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 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.