In terms of dollars/revenue - no one comes close to ExxonMobil Oil Corp at over $45 billion in 2008. The largest US employer is WalMart at around 2.5 million employees (full and part-time from all...
Nautica Jeans Company
Harvard College is the oldest corporation in America
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United States Steel, created by J. Pierpont Morgan after buying Andrew Carnegie's holdings, which actually capitalized at $1.4 billion.