1. Elster Group GmbH
2. Jiangsu Liang Energy Co. Ltd
3. Landis + GYR Group AG
4. Sagemcom SAS
5. Wasion Group Holdings Limited
6. Aclara Technologies LLC
7. Hexing Electric Company Ltd
8. Holley Technology Ltd
9. Iskraemeco d.d.
10. Itron Inc.
11. Itron Inc.
12. Kamstrup A/S
13. Microchip Technology Inc.
14. Nanjing Xinlian Electronics Co. ltd
15. Ningbo Sanxing Electric Co. Ltd
16. Schneider Electric SE
17. Sensus USA Inc.
18. Shenzhen Hemei Group Co. Ltd
19. Siemens AG