1. 3M Company
2. ACOEM Group
3. Aeroqual Ltd.
4. Agilent Technologies Inc.
5. Daikin Comfort Technologies North America Inc.’
6. E + E Elektronik Ges.m.b.H
7. Emerson Electric Co.
8. ENVEA
9. Gasmet Technologies Oy
10. General Electric Company
11. Honeywell International Inc.
12. HORIBA
Ltd.
13. Ingersoll Rand PLC
14. Merck KGaA
15. Oizom Instruments Pvt. Ltd.
16. OPSIS AB
17. PerkinElmer Inc.
18. Prana Air
19. Siemens AG
20. Spectris PLC
21. Synspec BV
22. Teledyne Technologies Inc.
23. Testo SE & Co. KGaA
24. Thermo Fisher Scientific Inc.
25. TSI Incorporated