The purpose of this Guide is to provide corporations with a better understanding of the barriers and challenges preventing women-owned businesses from accessing and fully participating in the corporate supply chain. It also provides tools and techniques for overcoming these barriers and leveraging the vast untapped economic potential represented by women-owned businesses. To put this in perspective, about 63 percent of the top 175 global economic entities are corporations and not countries based on annual revenue or Gross Domestic Product, as the case may be (White, 2012). Each year, corporations spend trillions of dollars acquiring goods and services,yet purchases from women-owned businesses account for a merei percent of the total spend (Vazquez & Sherman, 2013, p. 43). By overlooking women-owned businesses, corporations are missing an opportunity to expand their markets, diversify their supply chains, and grow the economy, while simultaneously improving the lives of women and girls around the globe.