1. Friends of Herman Cain, Cain's presidential campaign committee - $596,400

2. 9-9-9 Fund, a pro-Cain super PAC - $100,000

3. Peter Kalikow, H.J. Kalikow & Company - $50,000

4. William Weidner, Venetian Casino Resort - $25,000

5. Hernando County Republican Committee - $10,000

*Top donors for 2012 election cycle; numbers trhough Nov. 26, 2012.

Source: Center for Responsive Politics, Federal Election Commission