1. Agilent Technologies Inc.
2. Circle Valve Technologies Inc.
3. CKD Corp.
4. Doering Company
5. Ebara Technologies Inc.
6. Emerson Electric Co.
7. Kitz SCT Corporation
8. Kurt J. Lesker Co.
9. MKS Instruments Inc.
10. Pfeiffer Vacuum Technology AG
11. Plast-O-Matic Valves Inc.
12. Shanghai QIGAO Valve Manufacturing Co. Ltd.
13. SMC Corp.
14. ULVAC Inc.
15. VAT Group AG