Telbee.io - telbee adds voice messaging to podcasts, websites, social media and email to easily hear from and build human relationships with your customers and community - save time, reduce frustration, and gain sales, understanding and fans
Dynamic Yield - Personalization & customer experience management
Vocaroo - Vocaroo is a quick and easy way to share voice messages over the interwebs.
Optimizely - A/B testing you'll actually use.
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
AB Tasty - AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.