1. A. Kayser Automotive Systems GmbH
2. A.L. GROUP
3. Ahlstrom-Munksjo Oyj
4. ALCO Filters Ltd.
5. Champion Laboratories Inc.
6. Cummins Inc.
7. Denso Corporation
8. Donaldson Company Inc.
9. FAA Filters LLC
10. Fildex Filters Canada Corporation
11. FILTRAK BRANDT GmbH
12. First Brands Group IP LLC
13. Freudenberg & Co KG
14. General Motors Company
15. Hengst SE
16. Jetsheen Enterprise Co. Ltd.
17. K&N Engineering Inc.
18. Luman Automotive Systems Pvt Ltd.
19. MAHLE GmbH
20. MANN+HUMMEL GmbH
21. North American Filter Corporation
22. Parker Hannifin Corporation
23. Robert Bosch GmbH
24. Siam Filter Products Ltd.
25. Sogefi S.p.A.
26. UFI Filters S.p.A.