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Philadelphia-based Fortune 500 corporations (by 2009 rank) | |
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Delaware Valley-based Fortune 500 corporations (by 2009 rank) | |
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Other notable Philadelphia-based businesses | |
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Notable Philadelphia-based professional partnerships | |
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Other notable Delaware Valley-based businesses | |
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Notable Delaware Valley-based US headquarters of foreign businesses | |
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Notable Delaware Valley-based division headquarters of US corporations | |
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