Think of powerful, multi-billion dollar corporations, and many come readily to mind. Wal-Mart. General Electric. Exxon Mobil. Bank of America. McDonald's. Apple. We recognize their logos, know what they sell and how to buy it -- or how to not buy it if we choose.
But for all their riches and ubiquity, when it comes to sheer raw power, these high-profile behemoths are eclipsed by a company that most of us have never heard of.