American companies

This is a list of notable companies based in the United States. For further information on the types of business entities in this country and their abbreviations, see "Business entities in the United States".

This list shows firms in the Fortune Global 500, which ranks firms by total revenues reported before 31 March 2017. Only the top five firms (if available) are included as a sample.

This list includes former companies and those that were acquired or merged:

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