8X8 INC.
Adobe Inc.
ALPHABET INC. (GOOGLE INC.)
Amazon.com Inc.
AT&T INC.
AVAYA INC.
CISCO SYSTEMS INC
Dialpad Inc.
Fuze Inc.
HUAWEI TECHNOLOGIES CO. LTD.
LIFESIZE
LOGITECH INTERNATIONAL SA
LOGMEIN INC.
MICROSOFT CORP.
Ooma Inc.
PLANTRONICS INC. (POLY)
PREMIUM GLOBAL SERVICES INC.
RINGCENTRAL INC.
VERIZON COMMUNICATIONS INC.
VIDYO INC.
ZOHO CORP.
Zoom Video Communications Inc.