Engajer is a cloud-based sales and communication platform that engages viewers deeply via interactive non-linear online videos. The company's platform provides deep lead-scoring capabilities and qualifying analytics based on customers' usage patterns. It tracks the viewer’s selections and activity and builds out a comprehensive profile not just of the viewer's overall level of interest but also of the specific subjects the viewer is most interested in. Engajer was founded in 2010 by Michael Castellano.