This note analyzes trends in investment commitments in infrastructure projects with private sector participation in countries eligible for support from the International Development Association during the period 2011 to 2015. The analysis includes only projects in the energy, transport, and water and sanitation sectors . IDA provides grants and lending on concessional terms to the world’s poorest countries. As currently defined by the World Bank, IDA countries are those whose Gross Net Income (GNI) per capita is below the threshold of $1,2153 . For the purpose of this review, we focus on 56 countries that are IDA-eligible and exclude blend and inactive countries. These 56 economies account for 3.1% of the Gross Domestic Product (GDP) and 16% of the population of Emerging Markets and Developing Economies (EMDEs) as of 2015.