1. ABB Ltd.
2. Aclara Technologies LLC
3. Arteche Group
4. Eaton Corporation
5. General Electric Company
6. Itron GmbH
7. Landis+Gyr Group AG
8. Metrycom Communication
9. Mitsubishi Electric Corporation
10. Oracle Corporation
11. Powel AS
12. QinetiQ Group plc
13. Schneider Electric S.E.
14. Sentient Technologies Holdings
15. Silver Springs Networks
16. Tantalus Systems Corp.