The growing investment needs in the South Asia Region (SAR) and East Asia and Pacific Region (EAP) necessitate high quality public financial management in order to sustain the growth momentum and achieve the desired development objectives. As these regions operate within limited fiscal space for development, it is an opportune moment to leverage on the expanded role of the private sector in the development agenda, and identify and explore the opportunities for the private sector to support the strengthening of PFM. This study illustrates examples of good practices of partnerships in financial management reforms between the public and the private sector and draws lessons learned from effective financial management reforms in the private sector in SAR and EAP. It discusses the enabling environment conducive to collaboration, windows of opportunity, leadership and change agents and the institutional environment for the public sector to work in tandem with the private sector.