2. David Koch – $43.9 Billion
Photo: bloomberg
David Koch once ran as the Vice Presidential candidate for the Libertarian Party in the 1980 election but was unsuccessful. However, it’s been the complete opposite in his business career. He’s currently the executive vice president, as well as 42% owner, of Koch Industries, which happens to be the second-largest privately owned company in the United States. His estimated net worth is said to be $43.9 billion.