PropelNext is a comprehensive, cohort-based, capacity-building program launched by the Edna McConnell Clark Foundation (EMCF) to enhance the effectiveness of promising nonprofits serving America’s disadvantaged youth. With a focus on high-quality programming, grantees participate in a structured three-year program that helps them build the knowledge, infrastructure, and practices they need to be come data-driven learning organizations. The first national cohort completed PropelNext in 2015. To better understand the impact of the program, EMCF partnered with Harder+Company Community Research and Engage R+D to assess post-program progress, achievements, and challenges. This report highlights key results and insights about the challenges, facilitators, and nuances of building a learning organization.