1. ABB Ltd.
2. Airbus SE
3. Ascom Holding AG
4. AT&T Inc.
5. Atos SE
6. Cibicom A/S
7. Cisco Systems Inc.
8. Cobham Limited
9. CommScope Holding Company Inc.
10. General Dynamics Mission Systems Inc.
11. Hitachi
Ltd.
12. Honeywell International Inc.
13. Huawei Technologies Co. Ltd.
14. Hytera Communications Corporation Limited
15. Inmarsat Global Limited by Viasat Inc.
16. JVCKENWOOD Corporation
17. L3Harris Technologies Inc.
18. Leonardo S.p.A.
19. Mentura Group Oy
20. MiMOMax Wireless by Ubiik Inc.
21. Motorola Solutions Inc.
22. Nokia Corporation
23. Northcom Solutions AS
24. Omnitronics Pty Limited
25. Sepura Limited
26. Siemens AG
27. Sonim Technologies Inc.
28. Sovereign Data Systems Ltd.
29. Streamwide S.A.
30. Tait Communications
31. TASSTA GmbH
32. Telefonaktiebolaget LM Ericsson
33. TeleGroup Limited
34. Telit Communications
35. Telstra Group Limited
36. Thales Group
37. TTG Global Limited
38. Zenitel Group
39. Zetron by Codan Limited
40. ZTE Corporation