Big Tech
Big Tech, also known as the Tech Giants, Big Four, Four Horsemen, Big Five, or S&P 5, are the largest and most dominant companies in the information technology industry of the United States, namely Amazon, Apple, Google, Facebook and Microsoft. Since the end of the 2000s, these five have been, besides Saudi Aramco, the most valuable public companies globally, with each having had a maximum market capitalization ranging from around $500 billion to around $2 trillion USD at various times.
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