• Companies ranked in each column category, with the total calculated to determine the final score. The lower the score the higher the rank.

• In the list of companies, click on a company name for more information, such as where shares are traded. Click on a column heading to rank the companies by category.

Notes: *Refers to companies that have announced a merger.

• Listed exchanges are New York Stock Exchange (NYSE), Nasdaq National Market (NASDAQ) and American Stock Exchange (AMEX).

• Unlisted stocks are traded on the over-the-counter bulletin board (OTCBB).

• Companies with revenue of less than $50 million are omitted.

Sources: PricewaterhouseCoopers LLP, Capital IQ subsidiary of Standard & Poor's, staff research