Beijing New Metallurgical Machine & Equipment Co.,Ltd(BNMME) China 
 Caterpillar Inc United States 
 Conjet AB Sweden 
 Cummins Inc. United States 
 Deutz Corporation United States 
 Dry Systems Technologies United States 
 Ellefson Off Highway United States 
 Europe Tractor Parts srl Italy 
 Expert Diesel S.A. Panama 
 Finnish Radiator mgf.co Ltd Finland 
 GFS Corp United States 
 Grady Enterprises Inc United States 
 Heavy Quip Sales Inc. United States 
 Hoss Equipment Company United States 
 Impac Systems Engineering United States 
 Intl. Energy Products United States 
 JCB Power Systems Ltd. United Kingdom 
 John Deere Power Systems United States 
 Komatsu America Corp United States 
 Kraft Power Corporation United States 
 KSD Enterprises United States 
 McDowell Brothers Industries Inc. Canada 
 MTU United States 
 MTU Friedrichshafen GmbH Germany 
 MTU Mongolia Mongolia 
 Prime Power North South Africa 
 Shell Lubricants United States 
 Subaru Industrial Power Products United States 
 Sumitomo Machinery Corporation of America United States 
 TESCO United States 
 Toshiba International Corp. United States 
 Volvo Penta Sweden 
 Wartsila Oy Finland