1. ABB Ltd.
2. Auer Signal GmbH
3. Eaton Corporation
4. Emerson Electric Co.
5. General Electric Company
6. HollySys Automation Technologies Ltd.
7. Honeywell International Inc.
8. Omron Corporation
9. Patlite Corporation
10. R. Stahl AG
11. Robert Bosch GmbH
12. Rockwell Automation Inc.
13. Schneider Electric SE
14. Siemens AG
15. Thales Group