1. AT&T Inc.
2. Bankai Group
3. Cequens
4. China Telecom Global Limited
5. ClearSky Technologies Inc.
6. Clickatell
7. Comviva Technologies Limited
8. Elfo Sdn. Bhd.
9. HexWireless
10. Infobip Ltd.
11. MMDSmart Ltd.
12. Monty UK Global Ltd.
13. Orange SA
14. Route Mobile Limited
15. Sify Technologies Limited
16. Silverstreet International Pte Ltd
17. Sinch AB
18. Syniverse Technologies LLC
19. Tata Communications Limited
20. Testelium
21. Teways
22. ThinQ by Commio
23. Twilio Inc.
24. Tyntec
25. Vodafone Limited
26. Vonage America
LLC
27. XConnect Services Limited by Somos Inc.