- AHP & Sport Compacts
- Amick Motorsports
- Blake's Carburetion
- Boosted Performance
- Brunnhoelzl Racing Products
- Cicci Frank Racing
- Dave Jensen Enterprise
- Goodridge USA
- Motorsport Tools
- Pro-System Inc
- RMI Racing Fabrication
- Roberts Racing Engines
- Spraker Racing Ent Inc
- Thermal Control Design LTD
- Wegner Motorsports
- West Bay Inc