In this report, Investing in Workforce Program Innovation: A Formative Evaluation of Five Workforce Organizations' Experiences during the Human Capital Innovation Fund Initiative, we describe the five organizations' experiences planning, implementing, and adapting new strategies. Investing in Workforce Program Innovation offers insights into the complex work of developing and maintaining relationships that cross institutions. We discuss factors grantees considered when identifying partner organizations, the approaches they used to find common ground and work effectively together, and the ways in which partnerships evolved and deepened over time. We describe how organizations cultivated long-term relationships with employers to not only inform workforce program design and promote job placement, but also to engage employers to reflect upon their hiring and employment practices. Finally, we discuss the ways in which HCIF-supported organizations tailored comprehensive and ongoing supports to the unique needs of their participants to help them succeed in and beyond training programs.