How Big U.S. Companies Would Rank as Countries

Based on 2010 sales revenue, Business Insider has a list of how 25 of America's largest companies compare to the GDP of entire countries in 2010, here are the top three:

1. With 2010 revenues of $414 billion, Walmart would rank as the world's 26th largest economy, right behind #25 Norway, which produced $422 billion of GDP last year.

2. Exxon would rank as the world's 30th largest economy with $355 billion of revenue, ahead of Thailand's $319 billion of GDP. 

3. Chevron would rank #46 in the world with $196 billion in sales last year, ahead of the Czech Republic's GDP of $192 billion.  

HT: Robert Kuehl

Update: Please note that sales revenue and GDP are measures of different types of economic activity and are not directly comparable in a pure economic or scientific sense.  Consider this to be more of an amusing comparison that allows us to put the billions of dollars of revenue that Walmart or ExxonMobil generate every year into some context by comparing those dollar amounts to the annual output of entire country, giving us an appreciation of the size of America's largest companies.