Instanza Interactive Limited
PlayStation Mobile Inc.
Zello Inc
Psiphon Inc.
Mail.Ru Group
textPlus
Microsoft Corporation
Shalltry Group
Movistar España
AOB Software
LLC Mail.Ru
Zalo Group
CallApp Caller ID Software
TalkU International Inc.
Skype
Яндекс
Opera
resolution Reichert Network Solutions GmbH
Talkatone, Llc
TextMe, Inc.