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Largest Companies in USA by Market Cap

Fiserv, Inc. is the biggest company in USA by market capitalization ($27.891B). This page ranks 1 publicly traded companies in USA by market cap, updated daily.

Top 1 by market cap

  1. 1.Fiserv, Inc.FISV$27.891B
#CompanyMarket CapPriceChange
1$27.891B$52.45-0.51%

Frequently asked questions

What is the largest company in USA by market cap?
Fiserv, Inc. is the largest publicly traded company in USA by market capitalization, with a market cap of $27.891B.
How many companies in USA are ranked on this page?
This ranking includes 1 publicly traded companies headquartered in USA, sorted by market capitalization from largest to smallest.
How often is the USA market cap ranking updated?
Rankings are updated daily using live stock prices and the latest reported financial data.
What does market capitalization mean?
Market capitalization is the total value of a company's outstanding shares (share price multiplied by shares outstanding). It is the standard way to rank the largest public companies.