Each year around the world, 2.4 million newborns die in the first month of life and up to 30 million newborns require some level of inpatient care. The majority of these small and sick newborns are born with low birth weight or prematurely, leaving them and their mothers highly vulnerable and in need of specialized care. The neoLENS project aims to document the approaches taken, barriers and enablers, and lessons learned for establishing and strengthening inpatient newborn care services within a network of newborn care, as viewed by stakeholders in Ethiopia, India, Malawi and Rwanda. PATH identified and documented experiences and perceptions of key stakeholders/informants on what it took/takes to establish, scale up, and strengthen inpatient newborn care services. As part of the data collection process and in the final case study, we focused on recording and documenting the objectives and processes in each setting, as well as the evolution for how they reached their current state.