AirFlow Catalyst Systems
Diesel oxidation catalysts—Catalyzed particulate filters

AirProtekt Limited
Industrial air pollution control systems—Catalyzed particulate filters—DeNOx & oxidation systems

BASF Catalysts LLC
Emission control catalysts—Diesel particulate filters—Zeolite and vanadium based SCR catalysts

OE and aftermarket emissions control systems for diesel, propane, gasoline and natural gas engines

Cummins Emission Solutions
Exhaust aftertreatment technology for the commercial on and off-highway light-duty, medium-duty, heavy-duty and high-horsepower engine markets

Catalytic Exhaust Products
Catalytic converters for off-road vehicles and stationary engines

DCL International
Diesel emission control systems—Catalytic converters—Catalytic mufflers—Flow-through diesel particulate filters—Wall flow diesel particulate filters

HJS Fahrzeugtechnik
Exhaust gas aftertreatment systems for diesel and petrol engines—Sintered Metal Filter (SMF®)

Hug Engineering AG
Emission control systems stationary, on- and offroad, rail and marine applications

Johnson Matthey
Diesel and automotive catalysts—Catalytic Mufflers—DeNOx and SCR catalysts for stationary engines—Industrial VOC control catalysts

Industrial engine exhaust catalyst: NSCR, SCR and DPF—Exhaust silencers—Air/fuel ratio controllers—RICE NESHAP monitors—Turnkey installation service, project management, onsite services and training.

Nett Technologies Inc.
Catalytic emission control for off-road vehicles, buses, trucks, and stationary engines

Proventia Emission Control
Emission control systems for off-road and stationary diesel and petrol engines

Rypos Inc.
Actively regenerated diesel particulate filter system

STT Emtec AB
Emisson control systems and components for all legislated exhaust emissions—OEM and retrofit applications

Umicore Automotive Catalysts
Diesel and automotive catalysts—SCR catalysts—Lean NOx catalysts—Diesel Particulate Filters

A-R-T GmbHGermany
AeriNOx Inc.USA
Airmeex S.A.France
AirProtekt Ltd.UK
AirTek Inc. / CatcoUSA
Ansa MarmitteItaly
Blackthorn Environmental LtdUK
Catalytic Exhaust Products Ltd.Canada
Cleaire Advanced Emission Controls LLCUSA
Clean Diesel Technologies Inc. (CDTi)USA
Clean Emissions Products Inc.Canada
CleanAir Systems, Inc.USA
Combustion Components Associates (CCA)USA
Cordonna Associates, Inc. (CAI)USA
Cummins Emission Solutions Inc.USA
D.E.C. Marine ABSweden
DCL International Inc.Canada
Deparia Engineering SrlItaly
Diemma BVThe Netherlands
Diesel Emission Control Ltd.UK
DIF Die Ideenfabrik GmbHGermany
Dinex A/SDenmark
EAS IncorporatedUSA
Eastern Manufacturing Inc.USA
Ecovent GmbH & Co. KGGermany
EHC Teknik abSweden
Emico Technologies Inc.Canada
Emicon Systems A/SDenmark
Eminox LimitedUK
Engine Control Systems LimitedCanada
Ernst Apparatebau GmbH & Co.Germany
ESW CleanTech, Inc.USA
ETB Energietechnik Bremen GmbHGermany
Exhaust Control Industries Pty. Ltd.Australia
FlowGreen Emission Control Inc.Canada
H+H Umwelt & Industrietechnik GmbHGermany
Heimbach GmbH & Co.Germany
Heraeus Holding GmbHGermany
Hitz (Hitachi Zosen)Japan
HJS Fahrzeugtechnik GmbH & Co KGGermany
HUG Engineering AGSwitzerland
Huss GroupGermany
JMJ - Zakład Produkcji KatalizatorówPoland
Lanyu Technologies Inc.China
Mageta AGGermany
Mechanical Equipment Inc.USA
Met-Pro CorporationUSA
Micro Fresh Filters (Aust) Pty LtdAustralia
Nett Technologies Inc.Canada
Noxtech, Inc.USA
Oberland Mangold GmbHGermany
Out-of-the-Water Enterprises, LLCUSA
PCA / Pure Clean Air AGSwitzerland
Pirelli & C. Ambiente S.p.AItaly
Precision Combustion, Inc.USA
Proventia Emission ControlFinland
Purefi A/SDenmark
PURItech GmbH & Co. KGGermany
Pyroban Ltd. (UK)UK
Rypos, Inc.USA
Safety Power Inc.Canada
Simulation Tech, Inc. (STI)Korea
STT Emtec AB (Svensk Turbo Teknik)Sweden
Svenska Emissionsteknik AGSweden
Tehag Engineering AGSwitzerland
Ward Diesel Filter Systems, Inc.USA