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Largest Companies in UK by Market Cap

3i Group Ord is the biggest company in UK by market capitalization ($21.428B). This page ranks 1 publicly traded companies in UK by market cap, updated daily.

Top 1 by market cap

  1. 1.3i Group OrdIII.L$21.428B
#CompanyMarket CapPriceChange
1$21.428B$21.45+1.98%

Frequently asked questions

What is the largest company in UK by market cap?
3i Group Ord is the largest publicly traded company in UK by market capitalization, with a market cap of $21.428B.
How many companies in UK are ranked on this page?
This ranking includes 1 publicly traded companies headquartered in UK, sorted by market capitalization from largest to smallest.
How often is the UK 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.