1. Agilent Technologies Inc.
2. Atlas Copco AB
3. Becker Pumps Corporation
4. BGS General Srl
5. Busch Dienste GmbH
6. Dekker Vacuum Technologies Inc.
7. Don Whitley Scientific Limited
8. Ebara Corporation
9. Edwards Limited
10. Flowserve Corporation
11. Gast Manufacturing Inc.
12. Global Vacuum Presses
13. GlobalVac & Air
14. Graham Corporation
15. Ingersoll Rand PLC
16. Kashiyama Industries
Ltd.
17. KNF DAC GmbH
18. Merck KGaA
19. Pfeiffer Vacuum GmbH
20. Shimadzu Corporation
21. Tsurumi Manufacturing Co. Ltd.
22. Tuthill Corporation
23. ULVAC Inc.
24. Vooner FloGard Corporation
25. Wintek Corporation