1. Abnormal Security Corp.
2. BAE Systems PLC
3. Barracuda Networks Inc.
4. Broadcom Inc.
5. Check Point Software Technologies Ltd.
6. CipherMail B.V.
7. Cisco Systems Inc.
8. Cloudflare Inc.
9. Darktrace Holdings Limited
10. Echoworx Corporation
11. Egress Software Technologies Limited
12. Entrust Corporation
13. Fortinet Inc.
14. Google LLC by Alphabet Inc.
15. Green Radar Limited
16. Hush Communications Corporation
17. Intermedia.net Inc.
18. International Business Machines Corporation
19. IRONSCALES LTD.
20. Lux Scientiae
Incorporated
21. Mailfence
22. Microsoft Corporation
23. Mimecast Services Limited
24. Open Text Corporation
25. Proofpoint Inc.
26. Proton AG
27. RMail
28. Seclore
29. SecureMyEmail by Witopia Inc.
30. Smarsh Inc.
31. Sophos Limited
32. Tessian Limited
33. Trend Micro Incorporated
34. Verizon Communications Inc.
35. Virtu Financial
Inc
36. Zix Corporation
37. Zoho Corporation Pvt. Ltd.