Koch Brothers
Top Election Donors 2014: Mike Bloomberg, Sheldon Adelson, David Koch Were Biggest Contributors
Koch, the influential vice president of Koch Industries, which owns a number of chemical and energy companies, backs multiple super PACs and the company s political action committee with his brother, Charles Koch. While David Koch personally contributed $6.2 million toward the 2014 midterm elections, the Koch brothers super PAC, Americans for Prosperity, spent $125 million on the election, according to Politico.