In 2008, a U.S. bankruptcy trustee in Massachusetts accused Capital One of illegally trying 5, 600 times to collect debts already wiped out by a bankruptcy judge.

WSJ: Debts Go Bad, Then It Gets Worse

The other comer is Mitt Romney, governor of Massachusetts, founder of Bain Capital, and former CEO of the Salt Lake City Organizing Committee.

FORBES: Will The Next U.S. President Be An Entrepreneur?

Boston, Massachusetts -- affectionately called Beantown -- is the unofficial student capital of the United States, with the greater Boston area containing some of the most distinguished universities in the world, including Harvard and the Massachusetts Institute of Technology (MIT).

BBC: Best student cities: Boston

Filings Romney made in Massachusetts that have been unearthed show that he owned 100% of Bain Capital.

FORBES: Move up http://i.forbesimg.com t Move down

Most of the companies 37 out of 50 are based in California where the largest share of venture capital is invested, while four are in New York and three are in Massachusetts.

WSJ: Looking for the 'Next Big Thing'? Ranking the Top 50 Start-Ups