| 1 | Jet Engine Technology | | USA |
| 2 | ABB Turbine Manufacturing Div. | | USA |
| 3 | Atelier d'Usinage Moteur de Beauce Inc. | | USA |
| 4 | Power Phase LLC | | USA |
| 5 | Dynalco | | USA |
| 6 | Gibson Performance Inc. | | USA |
| 7 | Perkins Pacific | | USA |
| 8 | Lunenburg Foundry & Engineering Limited | | USA |
| 9 | Pako Inc. | | USA |
| 10 | Carmel Welding & Supply Co. Inc. | | USA |
| 11 | Kubota Engine America Corporation | | USA |
| 12 | Solar Turbines Incorporated | | USA |
| 13 | Arrow Engine Company | | USA |
| 14 | Workhorse Group Inc. | | USA |
| 15 | Industrial Pump Sales Inc. | | USA |
| 16 | Technol Fuel Conditioners Inc. | | USA |
| 17 | Schwanke Engines LLC | | USA |
| 18 | Mercury Marine | | USA |
| 19 | COMP Cams | | USA |
| 20 | Mid-Continent MFG | | USA |
| 21 | Endyn Ltd. | | USA |
| 22 | Tech Development Inc. | | USA |
| 23 | Cyclone Power Technologies Inc. | | USA |
| 24 | AB Engine | | USA |
| 25 | Reagan Equipment Co. Inc. | | USA |
| 26 | Cooper-Bessemer Reciprocating | | USA |
| 27 | Sequel Inc. | | USA |
| 28 | Controls & Power System Inc. | | USA |
| 29 | Nickles Industrial | | USA |
| 30 | Rolls Royce Corp. | | USA |
| 31 | Industrial Welder Rebuilders Inc. | | USA |
| 32 | D & D Parts & Engine Service | | USA |
| 33 | Mogas Fuel Systems | | USA |
| 34 | Murphy Crane Service | | USA |
| 35 | Waukesha-Pearce Industries Inc. | | USA |
| 36 | SES Arrow Manufacturing | | USA |
| 37 | Allison Engine Co. | | USA |
| 38 | Cooper Energy Services | | USA |
| 39 | Waukesha Power Systems | | USA |
| 40 | Genpar Industries LLC | | USA |
| 41 | Schedler's Engine Rebuilding & Supply Inc. | | USA |
| 42 | Engine Power Co. | | USA |
| 43 | United States Motor Power | | USA |
| 44 | Coates International | | USA |
| 45 | Industrial Automotive Parts Inc. | | USA |
| 46 | Salmini Marine Engine Corp. | | USA |
| 47 | Dealer's Mfg. Co. | | USA |
| 48 | Richmont Automotive | | USA |
| 49 | SAE Manufacturing Specialties Corp | | USA |
| 50 | Governors America Corp. (GAC) | | USA |
| 51 | Siemens Energy | | USA |
| 52 | DFW Heavy Duty | | USA |
| 53 | Honda Engines Group | | USA |
| 54 | Production Engine & Pump Inc. | | USA |
| 55 | A/M Air Starter Sales & Service | | USA |
| 56 | B.L.M. Equipment & Manufacturing Co. Inc. | | USA |
| 57 | Alkota Cleaning Systems Inc. | | USA |
| 58 | Edelbrock Corp. | | USA |
| 59 | Fairbanks Morse Engine | | USA |
| 60 | Panther Airboat Corp. | | USA |
| 61 | Hyundai Heavy Industries Co. Ltd. | | USA |
| 62 | Briggs & Stratton Corp. | | USA |
| 63 | Weichai America Corp. | | USA |
| 64 | Fairbanks Morse Defense | | USA |
| 65 | Tie Down Engineering | | USA |
| 66 | Kawasaki Motors Corp. U.S.A. | | USA |
| 67 | Caterpillar Inc. | | USA |
| 68 | Quadra Manufacturing | | USA |
| 69 | Tech 3 Solutions Inc. | | USA |
| 70 | MAHLE Group | | USA |
| 71 | Cummins Inc. | | USA |
| 72 | Jaycraft Corp. | | USA |
| 73 | LFG Technologies | | USA |
