1. ABB Ltd.
2. Calex Electronics Limited
3. Enfield Technologies
4. Eurotherm by Schneider Electric
5. Gefran SPA
6. Hanyoung Co. Ltd.
7. Honeywell International Inc.
8. OMEGA Engineering Inc.
9. OMRON Corporation
10. Radix Electrosystems Pvt. Ltd.
11. Red Lion Controls Inc.
12. Sensotronic System Ltd.
13. TOPTICA Photonics AG
14. Watlow Electric Manufacturing Company
15. Yokogawa Electric Corporation