1. BorgWarner Inc.
2. Continental AG
3. Denso Corporation
4. Heinzmann GmbH & Co. KG
5. HELLA GmbH & Co. KGaA
6. Hitachi Ltd.
7. Indo Sch?ttle Pvt. Ltd.
8. MAHLE Group
9. Robert Bosch GmbH
10. SI PARTS S.r.l.
11. Spectra Premium
12. Standard Motor Products Inc.
13. TI Fluid Systems
14. UCAL Fuel System Limited
15. VALEO