Company lists · Data refreshed October 2026

Top 20 Diesel emissions reduction system suppliers based in the United States

RevenueBase identified 40 company matches for diesel emissions reduction system suppliers associated with the United States as of October 2026 and tracks 237 professional contacts across them, including 96 with verified work emails. Anaheim is the largest hub.

This list covers company matches for diesel emissions reduction system suppliers 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 October 24, 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 Oct 24, 2026 How this list was built
40Companies
237Contacts tracked
96Verified emails
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The 20 largest diesel emissions reduction system suppliers based in the United States

Ranked by team size
Top 20 of 40 company matches for diesel emissions reduction system suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 24, 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 matchFranklin, MA, United StatesHQ recorded Oct 24, 202611-5040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
2Exact matchRedding, CA, United StatesHQ recorded Oct 24, 202651-20025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
3Exact matchSeymour, IN, United StatesHQ recorded Oct 24, 202611-5016 contacts →

Exact match

“S&S Diesel Motorsport is the world leader in high-performance common-rail diesel injection and vehicle controls.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
4Exact matchBolingbrook, IL, United StatesHQ recorded Oct 24, 202611-5016 contacts →

Exact match

“Chicagoland's Source for Truck Parts: With two locations in the Chicago area, Action Truck Parts covers all of your truck parts and accessory needs.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
5Exact matchSpringfield, MO, United StatesHQ recorded Oct 24, 202611-5014 contacts →

Exact match

“Global Pioneer and Leader in DPF & DOC Cleaning, Restoration, & Emissions Systems”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
6Exact matchMesa, AZ, United StatesHQ recorded Oct 24, 202611-509 contacts →

Exact match

“With a track record of more than a decade, Bullet Proof Diesel has been providing upgraded diesel components to private truck owners as well as commercial and governmental fleets.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
7Exact matchSan Bernardino, CA, United StatesHQ recorded Oct 24, 202611-508 contacts →

Exact match

“Today FleetServ provides a full range of diesel emissions solutions, eliminating all of the stress and headache often associated with diesel emissions.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
8Exact matchGlen Burnie, MD, United StatesHQ recorded Oct 24, 202611-505 contacts →

Exact match

“We specialize in the service and support of diesel cooling and emissions systems.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
9Exact matchWalbridge, OH, United StatesHQ recorded Oct 24, 202651-2004 contacts →

Exact match

“The Diesel Force Diesel Maintenance System is a revolutionary comprehensive engine cleaning system designed exclusively for diesel engines equipped with modern emissions systems.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
10Exact matchColumbia, SC, United StatesHQ recorded Oct 24, 202611-504 contacts →

Exact match

“DPF Alternatives offers complete diesel aftertreatment solutions for fleets, repair shops and owner‑operators.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
11Exact matchElmira, NY, United StatesHQ recorded Oct 24, 20261-104 contacts →

Exact match

“Ward Diesel Filter Systems provide diesel exhaust removal for fire trucks & ambulances.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
12Exact matchAnaheim, CA, United StatesHQ recorded Oct 24, 202611-503 contacts →

Exact match

“Enviromotive is the place to go for DPF Cleaning Equipment, DPF Testing Equipment, New DPFs, Aftermarket Diesel Emission Parts, DPF Service Kits & Accessories.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
13Exact matchBristol, RI, United StatesHQ recorded Oct 24, 20261-103 contacts →

Exact match

“Reactive Cyclical Induction STec Technology, Inc.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
14Exact matchMidland, TX, United StatesHQ recorded Oct 24, 20261-103 contacts →

Exact match

“We clean diesel particulate filters and diesel oxidation catalysts.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
15Exact matchNew York, United StatesHQ recorded Oct 24, 20261-102 contacts →

Exact match

“IMAGINE having a way of stopping the environmentally destructive impact of the diesel engine on the planet today?”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
16Exact matchLakeside, CA, United StatesHQ recorded Oct 24, 20261-102 contacts →

Exact match

“While CARB regulations help maintain clean air in California, they can be a challenge for businesses that use diesel equipment.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
17Exact matchDubuque, IA, United StatesHQ recorded Oct 24, 202611-502 contacts →

Exact match

“Diesel injection pumps, fuel injectors, turbos, diesel performance parts, diesel parts, Ford Powerstroke, GM Duramax Diesel, Dodge Cummins Diesel”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
18Exact matchKaty, TX, United StatesHQ recorded Oct 24, 202611-501 contacts →

Exact match

“Diesel Maintenance for DPF Systems Serving Greater Houston.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
19Exact matchSomerville, AL, United StatesHQ recorded Oct 24, 202611-501 contacts →

Exact match

“Our expert team delivers the highest-quality OEM-Certified reman DPFs, DOCs, and SCRs in the industry-each warrantied and guaranteed to perform as intended, with hassle-free…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
20Exact matchLinthicum Heights, MD, United StatesHQ recorded Oct 24, 20261-101 contacts →

Exact match

“W&L Incorporated is a provider of premium and high quality car emission products like direct fit Catalytic Converters and Diesel Particulate Filters that match or exceed OEM…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase

Showing 20 of 40 diesel emissions reduction system suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 96 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diesel emissions reduction system suppliers based in the United States at a glance

As of Oct 24, 2026
40.5%Verified-email coverage
5.9Average contacts per company
11-50Median size (employees)
5.0%Largest-city concentration · Anaheim
Oct 24, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
16
51-200
4
501-1,000
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 40 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 “diesel emissions reduction system suppliers” 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 96 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 October 24, 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 “diesel emissions reduction system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many diesel emissions reduction system suppliers are there based in the United States?

RevenueBase identified 40 company matches for diesel emissions reduction system suppliers associated with the United States as of October 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?

Rypos, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most diesel emissions reduction system suppliers?

Anaheim leads with 2 company records, followed by Algona (1) and Atlanta (1).

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 96 professional contacts with verified work emails tracked across these 40 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 October 24, 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.