1. ABB Ltd.
2. Cisco Systems Inc.
3. Emerson Electric Co
4. General Electric
5. Hitachi
Ltd.
6. Huawei Technologies Co. Ltd.
7. Moxa Inc.
8. Necon Group
9. OptaSense Ltd
10. PSI Software AG
11. Rockwell Automation Inc.
12. Schneider Electric
13. Siemens AG
14. Wipro Limited
15. Xylem Inc.