Largest S&P 500 companies by market cap 2023 Published by Statista Research Department, Aug 10, 2023 As of July 2023, tech giants Apple, Microsoft Alphabet (Google), Amazon, and Nvidia dominated the S&P 500 index and were the only five companies with a market capitalization exceeding one trillion U.S. dollars in the U.S..

Aug 30, 2023 With a market capitalization of 2.75 trillion U.S. dollars as of May 2023, Apple was the world’s largest company that year. Rounding out the top five were some of the world’s most recognizable brands: Microsoft, Saudi Arabian Oil Company (Saudi Aramco), Google’s parent company Alphabet, and Amazon.