VitalSource

VitalSource Bookshelf is the world's #1 digital content platform, serving more than 25 million users on over 7,000 campuses in 200+ countries with native apps running on iOS, Android, Mac OS X, Windows, as well as directly through the Web. Our platform and APIs serve hundreds of millions of requests per day to meet the needs of those students — along with the largest institutions and publishers from around the globe — while exceeding 99.99% uptime and consistently handling exponential year-over-year growth.