Foundations play a critical role in supporting efforts to address gender-based violence, yet little research has been conducted on the level or type of funding in the U.S. Spurred by the paucity of data and analysis, the Ms. Foundation for Women undertook a multi-pronged study to measure the scope, focus and impact of funding in this area. Coinciding with the 15th anniversary of the Violence Against Women Act, this report reviews the progress foundations have made in addressing gender based violence in order to sketch the current philanthropic landscape and its potential for growth.