Times Square in New York

Top 30 US companies in the S&P 500 index 2021

The largest American companies are deeply involved in the economy of the United States, as well as the rest of the world. The thirty largest publicly traded US companies, top constituents of the S&P 500 index, are presented here together with their activities, logos, and useful links.

Top 30 US companies in the NASDAQ index 2021

Technology and innovative companies thrive in the United States where they have access to a large and sophisticated market and dedicated stock exchange, the Nasdaq. The thirty largest publicly traded companies in the Nasdaq Composite index are here presented together with their activities, logos, and useful links.