Adobe Target - Adobe Target provides an intuitive user interface and an expanded personalization toolset.
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
Optimizely - A/B testing you'll actually use.
Webeo - Dynamically change your B2B website and tailor your website experience to each of your specific audiences to drive increased engagement, conversion and leads.
Dynamic Yield - Personalization & customer experience management
AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.