"Vertical funds are multistakeholder global programs that provide earmarked funding for specified purposes. This brief presents a series of lessons learned from vertical fund experiences that are applicable to scaling up in agriculture and rural development. It draws on the experience of the Global Fund to Fight AIDS, Tuberculosis and Malaria as well as other funds with substantial operational programs at the country level. It also draws on the experience of the Scaling up Nutrition (SUN) movement, a multistakeholder global program without a vertical fund that is directly relevant to agriculture and rural development."