| 1 | Cyclone Power Technologies Inc. | | USA |
| 2 | Millar Auto Machine Company Ltd. | | USA |
| 3 | B&M Racing & Performance Inc. | | USA |
| 4 | Allstar Engine Company | | USA |
| 5 | Zed Engines | | USA |
| 6 | Bennett Racing Engines | | USA |
| 7 | Quick Silver Race Engines Inc. | | USA |
| 8 | Pittsburgh Electric Engines Incorporated | | USA |
| 9 | Authentic Scale | | USA |
| 10 | Lingenfelter Performance Engineering Inc. | | USA |
| 11 | Michigan Motor Exchange | | USA |
| 12 | Precision Valve & Crank (1998) Ltd. | | USA |
| 13 | Opel Engineering | | USA |
| 14 | Steyr North America Inc. | | USA |
| 15 | Tri Star Engines & Transmissions | | USA |
| 16 | Hre Forums | | USA |
| 17 | Turbonetics Inc. | | USA |
| 18 | Standard Aero Holdings Inc | | USA |
| 19 | AM General Corp. | | USA |
| 20 | Reher-Morrison Racing Engines | | USA |
| 21 | Keith Black Racing Engines | | USA |
| 22 | Marshall Engines | | USA |
| 23 | AB Engine | | USA |
| 24 | Leitch Performance Engines | | USA |
| 25 | Navistar Inc. | | USA |
| 26 | RPM Industries LLC | | USA |
| 27 | Hp2G Llc | | USA |
| 28 | Aero-Mecachrome | | USA |
| 29 | Dealer's Mfg. Co. | | USA |
| 30 | Reliable Engine Services Ltd. | | USA |
| 31 | Component Machine Inc. | | USA |
| 32 | Atlantic Engine Rebuilders Inc. | | USA |
| 33 | Teksid Aluminum Foundry Inc. | | USA |
| 34 | Mamco Inc. | | USA |
| 35 | Bill Mitchell Products BMP | | USA |
| 36 | Cooksville Automotive Engines Ltd. | | USA |
| 37 | Mall Tooling & Engineering Inc. | | USA |
| 38 | Astro Automotive Machine | | USA |
| 39 | Performance Marine & Auto | | USA |
| 40 | SF Engine Remanufacturing Co. Inc. | | USA |
| 41 | Cornett Machine Shop Inc. | | USA |
| 42 | Eljay-Gold Bar Diesel & Machine Work Inc. | | USA |
| 43 | Mantis Racing Inc. | | USA |
| 44 | Ken's Automotive Engineering Inc. | | USA |
| 45 | Great Lakes Diesel | | USA |
| 46 | Thompson Automotive Machine | | USA |
| 47 | Cottrell Racing Engines | | USA |
| 48 | Cetus Engines | | USA |
| 49 | Knighton's Automotive Machine Shop | | USA |
| 50 | Forbes Rebuilt Automotive Parts | | USA |
| 51 | Republic Locomotive | | USA |
| 52 | Hema Driveline and Hydraulics Inc. | | USA |
| 53 | Governors America Corp. (GAC) | | USA |
| 54 | Continental | | USA |
| 55 | Speedway Motors Inc. | | USA |
| 56 | Honda Engines Group | | USA |
| 57 | Sonny's Racing Engines | | USA |
| 58 | Nivel | | USA |
| 59 | Berrien Buggy by Acme | | USA |
| 60 | American Honda Motor Co. Inc. | | USA |
| 61 | Egge Machine Company Inc. | | USA |
| 62 | Pfaff Engines | | USA |
| 63 | ECO Physics Inc. | | USA |
| 64 | Scuderi Group | | USA |
| 65 | Briggs & Stratton Corp. | | USA |
| 66 | General & Automotive Machine | | USA |
| 67 | Aisin World Corp. of America | | USA |
| 68 | Prefix Corp. | | USA |
| 69 | French Grimes Race Systems | | USA |
| 70 | JR Race Cars | | USA |
| 71 | Panther Airboat Corp. | | USA |
| 72 | Holley Performance Products Inc. | | USA |
| 73 | General Motors Corp. | | USA |
| 74 | C S Industries Inc. | | USA |
| 75 | Ryan Falconer Racing Engines | | USA |
