Red Tricycle - Find Great Family Activities
Optimizely - A/B testing you'll actually use.
Facebook Local - Discover places to go and events happening near you
SplitMetrics - SplitMetrics is the A/B testing platform for App Store and Google Play page to discover the most converting icons, screenshots, video, etc.
Winnie - Great activities and destinations for families
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.