Optimizely - A/B testing you'll actually use.
Mutiny - Personalize your website for each visitor
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
Markettailor.io - Convert the traffic you already have and reach different B2B customer segments through personalized websites. No code ─ build personalizations in minutes with visual editor and high quality company data.
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.
Conductrics - Conductrics offers an API that allows users to create targeted, self-optimizing, customer-facing web and mobile applications.