The single largest corporate donation in this year’s election so far was more than $5 million. But not much is known about the donor.

Based out of Knoxville, Tennessee, Specialty Group Inc. contributed nearly $5.3 million between October 1-11 to FreedomWorks for America, a super PAC affiliated with former House Majority Leader Dick Armey (R-Texas) that endorsed 84 Republican candidates in this year’s e;ection.

The company has been around for only a month, and operates out of a private home. The only person associated with it is its registered agent, William S. Rose Jr., a lawyer with a disconnected phone number, according to The Center for Public Integrity.

Rose issued a press release on Monday explaining that Specialty is involved in “real estate ventures and investments.”

Corporations have given about $75 million to super PACs in the 2012 election cycle, according to The Center for Public Integrity and the Center for Responsive Politics.

Eighty-five percent of this money has gone to Republican-oriented groups, leaving 11% for Democratic ones and the rest for organizations not aligned with either party.

-Noel Brinkerhoff

To Lean More:

Mystery Firm Is Election's Top Corporate Donor At $5.3 Million (by Michael Beckel and Reity O'Brien, Center for Public Integrity)

Nonprofits, Shell Corporations Help Shield Identity Of Ad Backers (by Russ Choma, Center for Public Integrity)