1. ABB Ltd.
2. Airpath Wirelessnet Solutions
3. Alcatel–Lucent S.A.
4. Alstom Holdings
5. AltaLink by Berkshire Hathaway Energy
6. Cisco Systems Inc.
7. Conlog Solutions
8. DNV AS
9. Enercomtel sp. z o.o.
10. Fujitsu Limited
11. General Electric Company
12. Hitachi Ltd.
13. Hubbel Inc.
14. Itron Inc.
15. Mikronika sp. z o.o.
16. Nokia Corporation
17. Orion Telecom Networks Inc.
18. RAD Data Communications Ltd.
19. Schweitzer Engineering Laboratories Inc.
20. SELTA SpA by Digitalplatforms Srl
21. Siemens AG
22. TC Communications Inc.
23. Tesmec SpA
24. Texas Instruments Inc.
25. Valiant Communications