Incorporated in 1964 in NE. In 2006, Warren Buffett pledged almost $3 billion worth of his Berkshire-Hathaway, Inc. stock to the foundation to be paid out over time. As a result, the Susan Thompson Buffett Foundation's assets and annual giving have risen sharply - Founded by Warren Buffett and his late wife Susan Thompson Buffett. Mr. Buffett is founder, chairman and C.E.O. of Berkshire Hathaway Inc., a conglomerate holding company headquartered in Omaha, Nebraska, that oversees and manages a number of subsidiary companies, including GEICO Insurance. He is often called the "Oracle of Omaha" or the "Sage of Omaha". In 2008 he was ranked by Forbes as the richest person in the world with an estimated net worth of approximately $62 billion. In 2006, Warren Buffett pledged a portion of his Berkshire Hathaway, Inc. stock to the foundation to be paid out over time. Warren Buffett has committed to The Giving Pledge, and has pledged to give away at least half of his wealth to philanthropy