1. ABB Ltd.
2. Advance UV Systems Pty. Ltd.
3. Advanced UV Inc.
4. Aeroqual Ltd.
5. Agilent Technologies Inc.
6. AMETEK Inc.
7. Atlantic Ultraviolet Corporation
8. Delta Gas Mobin Group
9. ECD
10. Emerson Electric Co.
11. Envirotech Instruments Pvt Ltd.
12. First Light Technologies Ltd.
13. Halma PLC
14. Hitachi High-Technologies Corporation
15. Horiba
Ltd.
16. OPSIS AB
17. Real Tech Inc.
18. Servomex Group Limited
19. Siemens AG
20. Teledyne Technologies Inc.
21. Thermo Fisher Scientific Inc.
22. Vasthi Instruments Pvt Ltd.
23. Xylem Inc.