Many philanthropists are successful business professionals, investors or entrepreneurs. In addition to their financial resources, they bring expertise, skills, and collegial networks that can be of enormous benefit to the nonprofits they support. A growing number of donors and philanthropists are seeking ways to become more closely involved with a limited "portfolio" of charities, providing a combination of financial, intellectual and social capital. These so-called "engaged philanthropists" infuse their grantmaking activities with the principles and tools of venture capital investing, partnering with these organizations over an extended period of time
