Optimizely - A/B testing you'll actually use.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
Webtrends Optimize - Webtrends Optimize - a powerful, enterprise-grade Testing and Personalisation platform. AB, MVT & Server-side Testing, Product Recommendations & much more.
LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.
Evolv - Evolv is the visual editor for web-based projects that are used to find better ways to connect with customers in order to improve marketing economics.
Affise - Affise offers performance marketing solution to manage and analyze affiliates, advertisers, creatives, conversions, offers, and payments.