1. Aclara Technologies LLC
2. Adya Smart Metering Pvt Ltd.
3. Aichi Tokei Denki Co. Ltd.
4. Apator Group
5. Chongqing Shancheng Gas Equipment Co. Ltd.
6. Diehl Stiftung & Co. KG
7. Discovergy GmbH
8. EDMI Limited
9. Fujitsu Limited
10. Honeywell International Inc.
11. Itron Inc.
12. Landis+Gyr AG
13. Master Meter Inc.
14. Pietro Fiorentini S.p.a.
15. Zhejiang CHINT Electrics Co. Ltd.