1. ABB Ltd
2. Aphorism Engineering Private Limited
3. Banner Engineering Corp.
4. BERNSTEIN AG
5. Eaton Corporation PLC
6. Emerson Electric Co.
7. EUCHNER GmbH + Co. KG
8. Finetech Controls Pvt. Ltd.
9. Fortress Interlocks Limited
10. Honeywell International Inc.
11. IDEC Corporation
12. Idem Safety Switches
13. K.A. Schmersal GmbH & Co. KG
14. Leviton Manufacturing Co. Inc.
15. Littelfuse
16. OMRON Corporation
17. Panasonic Holdings Corporation
18. Pepperl+Fuchs SE
19. Pilz GmbH & Co. KG
20. Powertech Equipments
21. R. STAHL AG
22. Rockwell Automation Inc.
23. Schneider Electric SE
24. SICK AG
25. Siemens AG