Message.io - Make your chat bots cross-platform
Lotame - Make your data actionable, learn about your most valuable customers, improve ROI by targeting the right audience and increase relevance across screens.
Message Me - Website to create your contact business card
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
SmoochBot - Open source on-boarding bot for conversational apps
Google Audience Center - 3 votes and 6 comments so far on Reddit