Private foundations, given their charitable orientation, are often overlooked in the competitive arena of investing. However, these firms control vast fortunes that are strategically deployed to enact social influence over a long duration -- often in perpetuity. In part one of Top 20 Private Foundations In America, Trusted Insight profiles 10 prominent multi-billion-dollar charitable organizations established by the founders of America’s largest and oldest companies of the modern age, such as Microsoft, Intel, Hewlett and Packard and Ford Motor Company. Here’s what they do and how they manage their money.