1. American Air Filter Company Inc.
2. Amphenol Corporation
3. Camfil AB
4. Champion Aerospace Inc.
5. Chase Filters and Components Inc.
6. Donaldson Company Inc.
7. Eaton Filtration
LLC
8. Epec
LLC
9. Filtertech Inc.
10. Freudenberg & Co. KG
11. Genisco Filter Corp
12. GKN Aerospace Services Limited
13. Hollingsworth & Vose
14. Mott Corporation
15. Norman Filter Company
16. Pall Corporation
17. Parker Hannifin Corporation
18. Porvair plc
19. PTI Technologies Inc.
20. Recco Products Inc.
21. Saifilter Filtration Technologies
22. Sefar AG
23. Sensata Technologies Inc.
24. Superior Felt & Filtration
LLC
25. Swift Filters
26. The Lee Company