The world's largest company, Wal-Mart Stores, has revenues higher than the gross domestic product of all but twenty-five of the world's countries. Its employees outnumber the populations of almost one hundred nations. The world's largest asset manager, a New York company called Black Rock, controls assets greater than the national reserves of any country on the planet. A private philanthropy, the Gates Foundation, spends as much worldwide on health care as the World Health Organization. The rise of private power may be the most important and least understood trend of our time. Power, Inc. provides a fresh, timely look at how we have reached a point where thousands of companies have greater power than all but a handful of states. Beginning with the story of an inquisitive Swedish goat wandering off from his master and inadvertently triggering the birth of the oldest company still in existence, Power, Inc.