Unlike most other travel sites, which generally want you to book right away, Hopper is predicated on patience. Aimed primarily at the leisure-travel market, the app uses a sophisticated algorithm to predict the best deals and times to fly and...

Accomplice first invested in AngelList in January 2011. We believed that the Naval and Nivi combination was something special and saw the potential to use their platform as the operating system for our business. It’s been an incredible partnership:...