1. ABB Ltd.
2. AerNos Inc.
3. Alphasense Ltd. by AMETEK Inc.
4. Amphenol Corporation
5. ams-OSRAM AG
6. Applied Techno Systems
7. Asahi Kasei Corporation
8. Bartels Mikrotechnik GmbH
9. Danfoss A/S
10. eLichens
11. Flusso Limited
12. Gas Sensing Solutions Ltd.
13. Gastec Corporation
14. Honeywell International Inc.
15. Interlink Electronics Inc.
16. MEMBRAPOR AG
17. Microsens SA
18. N5Sensors
19. New Cosmos Electric Co. Ltd.
20. Nissha Co. Ltd.
21. Niterra Co. Ltd.
22. Process Sensing Technologies Ltd.
23. Robert Bosch GmbH
24. Sciosense B.V.
25. Sensirion AG
26. Sensorix GmbH
27. smartGAS Mikrosensorik GmbH
28. Toshiba Corporation
29. Vighnaharta Technologies Pvt. Ltd.
30. Zhengzhou Winsen Electronics Technology Co. Ltd.