- AAA Machine Shop
- Advanced Combustion
- Advanced Engines Development
- AEBS
- ALSTOM Power
- AMW Cuyuna Engine Co
- Appalachian Motor Svc
- Auburn Technology Inc
- Automotive Machine Shop
- Automotive Machine Shop
- B & J Machine Shop
- Briggs & Stratton Corp
- Compression Specialities
- Custom Speed Parts
- Daimler Chrysler Corp
- Dairyland Auto Parts
- Dave's Machine
- Donrich Machine Shop
- Dresser Waukesha Engine
- Dresser Waukesha Engine
- Dresser Waukesha Engine
- Engine Rebuilding & Specialty
- Engine Service Ctr
- Exline Inc
- Ford Motor Co
- Gale Banks Engineering
- Garzo Inc
- Garzo Inc
- GE Power Generation
- Go-Devil Mfg-Louisiana
- Gray Marine Co
- Harbor Engine & Grinding Inc
- Hatch & KIRK-Houston
- Hatch & KIRK-Houston
- Hayes Machine Svc
- Hayes Machine Svc
- Honda Of America Mfg Inc
- IDJ Automotive Machine Shop
- Impco Technologies Inc
- In-Mar Systems Inc
- Industrial Power Isuzu Truck
- Inland Detroit Diesel-Allison
- J R Turbyfill Inc
- Kem Equipment Inc
- Kroeger's Automotive Inc
- M I Marine
- M R Electronics
- Marine Power Inc
- Mercury Marine
- MJM Auto Parts Inc
- N & E Machine & Parts
- Northern Cylinder Heads
- NVR Racing
- Outboard Jets
- Parker Machine & Specialties
- Patterson Racing
- Peaker Svcs Inc
- Performance Technology Inc
- Pioneer Orchards
- Pleasurecraft Marine En
- Pleasurecraft Marine Engine Co
- Powrbilt Products Inc
- Progressive High Performance
- R S Marine Engine Svc
- Rebuild Inc
- Ross' Automotive Machine Co
- Rpm
- Salmini World Wide
- San Juan Engineering & Mfg Co
- Vic's Harbor Machine
- Volvo Penta Of The Americas
- Waukesha Engine
- Wegner Motorsports Inc
- White's Engine & Machine
- Woodward Fst Inc
- Worldwide Enterprises Of Va