1. APZEM Inc
2. BossTek
3. BWI Eagle Inc.
4. Camfil Group
5. CW Machine Worx
6. Donaldson Company Inc.
7. DSH Systems Ltd.
8. Dust Control Technologies Inc.
9. EmiControls
10. Nederman Holding AB
11. Quaker Chemical Corporation
12. Rees-Memphis Inc.
13. Savic Group
14. Sly Inc.
15. Spraying Systems Company