10/13/2010 02:29 pm ET Updated May 25, 2011

10 Biggest Corporate Campaign Contributors Over The Last 20 Years

As the mid-term election slowly draw nearer, we're taking a look at the companies whose deep pockets help keep America's political campaigns rolling along. With the help of the nonpartisan folks at the Center for Responsive Politics, we've combined a list of the top ten corporate campaign contributors, offering a look at the candidates they support, the issues that concern them, and their lobbying habits.

Here are ten companies that give America the best elections that money can buy, arranged in reverse order by campaign dollars contributed between 1989 and 2010.

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