Gainsight - Customer Success for the New Enterprise
Optimizely - A/B testing you'll actually use.
Totango - Totango is a Customer Success Software Platform
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
AskNicely - Collect customer experience feedback on a daily basis and empower your team to take immediate action to drive retention, upgrades, reviews and referrals.
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.