Co-hosted by WINGS and "la Caixa" Banking Foundation in Barcelona, Spain, on March 26 & 27, the meeting was meant for funders (and potential funders) of philanthropy infrastructure to engage in discussions around the role of foundations within the philanthropy ecosystem and how they can better contribute to it, ultimately benefiting civil society as a whole. Worldwide, there are institutions creating the conditions for a favorable environment for philanthropy institutions to accomplish their mission and achieve their potential. This includes activities and policies that strengthen the sector, including a legal framework that empowers them, a tax structure that provides incentives for giving, an accountability system that builds confidence in philanthropy and civil society, sufficient institutional capacity to implement effective activities and sufficient resources to undertake these activities, and a strong culture of giving to grow philanthropy. This positive environment is what is referred to as philanthropy infrastructure. The meeting provided examples of impact of infrastructure organizations from different regions of the world. Discussions revolved around how to develop grassroots philanthropy for long term development; how to adapt to a changing global landscape of support to philanthropy; how to develop strong and locally-relevant philanthropy support ecosystems; beyond foundations, who the unusual suspects in infrastructure funding are; and how to evaluate philanthropy infrastructure’s impact.