Optimizely - A/B testing you'll actually use.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
BEYABLE - Real-time personalization solutions for e-commerce & lead gen websites
Marpipe - Automate Your Ad Testing, Optimize Your Creative
Enhencer - Enhencer is an auto-machine learning SAAS platform that helps e-commerce sites to predict customer behaviours and take actions accordingly
AbTest.io - A free url shortener with A/B testing features