As Jayem has done...you can find some "top #" list of some wealthy people on both sides of the fence.
I guess I'm not sure what point this thread is driving at...if it's about money in politics, then that we can definitely have a discussion on.
We'll start with the two hot-button examples
Individual lobbying
Koch Brothers: $2.58 million
George Soros: $1.74 million
Corporate lobbying
Koch Industries: $50,972,700
Soros Fund Management: $860,000
Open Society Policy Center (Soros-Funded): $11,930,000
Organization-based lobbying
George Soros: $32.5 million
Koch Brothers: $1.5 million
If you add up the grand totals
Soros: ~$47 million
Koch: ~$55 million
Both parties also have a long list of powerful companies that back them too...
https://www.opensecrets.org/orgs/list.php?cycle=2012
It's often falsely portrayed that it's exclusively conservatives that are "buying elections"
However, the reality is that both sides are well funded by corporate backers, some who back one side exclusively, like the unions for Democrats, and Big Pharma does for Republicans, but there are far more groups (Like financial & technical companies) who are throwing big bucks at both sides.