Deere Power Systems Group
Industrial, off-road and marine diesel engines, CNG truck and bus engines
Kubota Canada Ltd. Engine Division
Clean emission diesel engines
- ACME Motori S.r.l.
- Alaska Diesel Electric, Inc.
- American Diesel Corporation
- Arrow Engine Company
- Basant Products India (Vidhata)
- Bernard Moteurs
- Beta Marine Ltd.
- Briggs & Stratton
- Briggs & Stratton Daihatsu
- Buck Diesel
- Callensen, Heinrich, A/S
- Caterpillar Inc.
- Changfa Group (China)
- C.M.D.
- Crusader Engines
- Cummins Inc.
- Cummins Natural Gas
- Daewoo Heavy Industries
- Daytona Marine Engine Corp.
- Detroit Diesel Corp.
- Detroit Diesel of Canada, Ltd.
- Deutz AG
- Fairbanks Morse
- Farymann Diesel/PRP Inc.
- Ford Power Products
- GE Jenbacher AG
- GM Powertrain
- Guascor
- Hatz Diesel of America, Inc.
- Hercules Engine Co.
- Hino Motors Ltd.
- Honda Motor Co.
- Isotta Fraschini
- Isuzu Motors Inc.
- Iveco
- Kawasaki Motors Corp.
- Kohler Co.
- Kubota Engine America
- Liebherr
- Linamar
- Lister-Petter
- Lombardini USA, Inc.
- Mack Trucks, Inc.
- Malloys India
- MAN Nutzfahrzeuge AG
- Mazda Motor
- Mercedes-Benz AG
- Mirrlees Blackstone Ltd.
- Mitsubishi Engine
- Motosan A.S. (Turkey)
- MTU Motoren und Turbinen Union
- Navistar International Transportation Corp.
- Nissan Industrial Engines
- Onan Corp.
- Pancar Motor (Turkey)
- Peninsular Engines Inc.
- Perkins Engines
- Peugeot Citroen Engines
- Pielstick, S.E.M.T.
- Robin America, Inc.
- Scania AB, Industrial & Marine Engines
- Sisu Diesel
- Tecumseh Products Co.
- Two Stroke International
- Volkswagen AG
- Volvo Penta
- Wartsila
- Waukesha Engine Division
- Westerbeke Corporation
- Wisconsin Motors
- Yanmar Diesel America Corp.