StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
Dynamic Yield - Personalization & customer experience management
Histats - Start tracking your visitors in 1 minute!
Optimizely - A/B testing you'll actually use.
AFSAnalytics - AFSAnalytics.
Google Marketing Platform - Google's unified and improved marketing and analytics tools.