Berkshire Hathaway is an American multinational conglomerate, headquartered in Omaha, Nebraska. It is run by Warren Buffett, who acts as President, Chairman and CEO. Berkshire Hathaway wholly owns GEICO, Lubrizol, Dairy Queen and others. It also has holdings in American Express, Coca-Cola, Wells Fargo, IBM, Kraft Heinz, and Mars, to name a few.