1. Adobe Inc.
2. AT&T Inc.
3. Avaya Inc.
4. Blue Jeans Network Inc.
5. BT Group
6. Cisco Systems Inc.
7. Citrix Systems Inc.
8. ClickMeeting
9. Communiqu? Conferencing Inc.
10. EyeNetwork
11. Fuze Inc.
12. Kaltura Inc.
13. Microsoft Corp.
14. Vidyo Inc.
15. Zoho Corporation