1. Air-Met Scientific Pty Ltd.
2. Angst+Pfister AG
3. APPLIED TECHNO ENGINEERS PRIVATE LIMITED
4. ATB Analytics LLC
5. Badger Meter Inc.
6. BE ATEX
7. BOREAL LASER INC.
8. Crowcon Detection Instruments Ltd. by Halma PLC
9. Dr?gerwerk AG & Co. KGaA
10. ECSense GmbH
11. GAO Tek Inc.
12. Gas-Sensing.com
13. Gasera Ltd.
14. GazDetect
LLC
15. Gesellschaft f?r Ger?tebau mbH
16. Honeywell International Inc.
17. International Gas Detectors Ltd.
18. mPower Electronics Inc.
19. MSA Safety Incorporated
20. R.C. Systems Inc.
21. RIKEN KEIKI Co.Ltd.
22. RKI Instruments Inc.
23. Sensidyne
LP
24. Sensorix GmbH
25. Zhengzhou Winsen Electronics Technology Co. Ltd.