Gainsight - Customer Success for the New Enterprise
vBulletin - Build a community website with the leading forum software, vBulletin 5 Connect, or in the cloud on vB Cloud!
Totango - Totango is a Customer Success Software Platform
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
AskNicely - Collect customer experience feedback on a daily basis and empower your team to take immediate action to drive retention, upgrades, reviews and referrals.
XenForo - Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.