Teams
- Aston Martin Racing
- Aten Motorsports
- Corvette Racing
- CRS Racing
- Farnbacher Loles Racing
- Fernandez Racing
- Flying Lizard Motorsports
- Highcroft Racing
- JMB Racing
- Krohn Racing
- Lola Cars
- Pescarolo Sport
- Rahal-Letterman Racing
- Reiter Engineering
- Risi Competizione
