1. Specialty Investments Group, Inc. - $10.6 million

2. FreedomWorks, Inc. - $2.6 million

3. Kingston Pike Development LLC - $1.5 million

4. Mary Stiefel, retired - $750,000 

5. William Dunn, DUNN Capital Management, LLC - $500,000

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

Source: Center for Responsive Politics, Federal Election Commission