1. Apator SA
2. Arad Group
3. Axioma Metering
4. B Meters S.r.l.
5. B METERS srl
6. Badger Meter Inc.
7. BETAR Company
8. Datamatics Global Services Ltd
9. Die Diehl Stiftung & Co. KG
10. Electronet Equipments Private Limited
11. Honeywell International Inc.
12. Hubbell Incorporated
13. Itron Inc.
14. Kamstrup
15. Landis+Gyr AG
16. Mueller Water Products Inc.
17. Neptune Technology Group
18. Ningbo Water Meter Co. Ltd.
19. Schneider Electric SE
20. Siemens AG
21. Sontex SA
22. STMicroelectronics N.V.
23. Telbit (Pty) Ltd
24. Xylem Inc.
25. Zenner International GmbH & Co. KG