Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Wickr - Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
Adobe Audience Manager - Adobe Audience Manager is a data management platform that integrates online and offline data to deliver a unified view of all your audiences
Burn Note - Burn Note is the name of a continuous private messaging utilizing which you can have an ongoing private discussion with your companions or any individual who is at Burn Note.
Google Audience Center - 3 votes and 6 comments so far on Reddit
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.