The 2015 edition of the ranking has just come out Fortune 500, which ranks companies by total revenue for their last fiscal years. As in 2014, the Apple appears in the fifth position.
Check out the top ten ranking:

It is the 61st edition of the Fortune 500 ranking, whose participating companies now total US $ 12.5 trillion in revenue, US $ 945 billion in profits, US $ 17 trillion in market value and 26.8 million employees.
Just for you to have an idea of the recent evolution of Apple, in 2009 it was in 253 position, in 2010 it jumped to 56, in 2011 to 35, in 2012 to 17 and in 2013 it joined the Top 10 occupying the 6 position.
(via MacRumors)