Apple’s Fortune 500 ranking is back at number three this year, after it overtook Warren Buffet’s conglomerate Berkshire Hathaway.

Apple does take the number one slot in two categories …

Apple is the most profitable company in the listing, well ahead of second-ranked JPMorgan Chase and third-placed Google parent Alphabet. Similarly, in the tech sector Apple is almost twice the size of second-placed Alphabet, with Microsoft, Dell and IBM completing the top five tech giants.

But the overall Fortune 500 rankings are based purely on revenue. The top 10 this year are:

Fortune notes the evolving nature of Apple’s business model.

Apple has been in the Fortune 500 list for 37 years, with its lowest position back in 2002, when it was #325. It entered the top 10 back in 2013, where it has remained ever since.

Fortune notes that the top 500 companies account for two-thirds of America’s GDP.

It also explains which companies qualify for a place on the list.

Other metrics are captured: profits, balance sheet, number of employees, earnings per share and total return to investors.

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