http://www.ibtimes.com/articles/264481/20111209/30-major-u-s-corporations-paid-lobby.htm
Lots more of the article if you click the link.
By employing a plethora of tax-dodging techniques, 30 multi-million dollar American corporations expended more money lobbying Congress than they paid in federal income taxes between 2008 and 2010, ultimately spending approximately $400,000 every day -- including weekends -- during that three-year period to lobby lawmakers and influence political elections, according to a new report from the non-partisan Public Campaign.
Lots more of the article if you click the link.