1. Alphasense Inc.
2. Bacharach Inc.
3. Cubic Sensor And Instrument Co. Ltd.
4. Dynament
5. E+E Elektronik GmbH
6. Edinburgh Sensors Ltd.
7. ELT Sensor Corp.
8. Emerson Electric Co.
9. Figaro Engineering Inc.
10. Gas Sensing Solutions Ltd.
11. Honeywell International Inc.
12. Mipex Technology
13. N.E.T. Srl
14. Senseair AB
15. SENSIRION AG
16. Zhengzhou Winsen Electronics Technology Co. Ltd.