1. Autosport Electronics
2. Bowler Performance Transmissions
3. Dura Automotive Systems
LLC
4. Edelbrock
LLC
5. Geartronics Ltd.
6. GSK InTek Co. Ltd.
7. Hewland Engineering Ltd.
8. Holinger Engineering
9. Jack Webb Motorsport Ltd.
10. Joyson Safety Systems Aschaffenburg GmbH
11. Leopold Kostal GmbH & Co. KG
12. LEYO Motorsport
13. Powertrain Control Solutions LLC
14. ProShift Technologies Ltd.
15. Savanini Precision Machinery Co. Ltd.
16. Shiftec Leamington Ltd.
17. Taizhou Savanini Precision Machinery Co. Ltd.
18. TCI Automotive
LLC
19. TECHART Automobildesign GmbH
20. VAC Motorsports Inc.