Pagewiz - An innovative landing page platform that lets you create, publish, and split-test landing pages.
SiteGainer - SiteGainer is an A/B testing and conversion optimization platform.
AdBasis - A/B and multivariate ad testing software
Experiment Engine - Experiment Engine is a A/B testing solution that harnesses human expertise to automate conversion optimization.
GrowthGiant - GrowthGiant enables marketers to increase their website sales and conversions by continuous A/B testing.
Optimizely - A/B testing you'll actually use.