BigTwistClosed
http://www.bigtwist.com/Intelligent Presentations for Better Meetings
BigTwist is a web and mobile application for students and professionals to create and share remarkable presentations. We've applied video game technology to break the mold of the typical slideshow. BigTwist is interactive, and audiences explore the content at their own pace. Interactivity eliminates boredom and improves audience engagement. The market for presentation software is over $3B and is ripe for a disruptive improvement.
Angel list: https://angel.co/company/bigtwist
Total raised: $620K