This study explores whether and how Philippine open government reformers have been able to leverage the Open Government Partnership (OGP) mechanisms, processes, spaces, and assistance to improve government responsiveness and accountability. Specifically, it examines the outcomes of the country’s engagement with OGP, viewed through the institutionalization of the open government agenda at the national level, and the presence (or absence) of a strong OGP thrust in the Bottom-Up Budgeting (BuB) at the local level.