US sweeps list of the world's largest companies: Meet the Top 5

For the first time in nearly a decade, the world’s five largest public companies are all American affair  These are the Top 5, as of mid-April 2013.

4. Berkshire Hathaway (BRK.B)

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    Warren Buffett tours the trade show floor during the Berkshire Hathaway annual shareholders meeting in Omaha last year.
    Lane Hickenbottom/Reuters/File
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Current stock value: $105.02 per share

One-year range: $78.21-$107.40

2012 revenue: $162.5 billion

2012 net income: $14.8 billion

Warren Buffett’s conglomerate based in Omaha, Neb., owns or holds significant stakes in a multitude of well-known companies, including Dairy Queen, Geico, Helzberg Diamonds, and Heinz, to name a few. Mr. Buffett says Berkshire Hathaway has averaged an annual growth in book value of 19.7 percent for the last 48 years, better than double the performance of the S&P 500.

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