United Kingdom

Top 3 largest UK Companies in the Financial Data & Stock Exchanges industry by Market Cap

This is the list of the largest public listed companies in the Financial Data & Stock Exchanges industry from the United Kingdom by market capitalization with links to their reference stock.

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Top Financial Data & Stock Exchanges Companies from the United Kingdom as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
1 London Stock Exchange Group plc $60.40 B United Kingdom UK Financials UK Financial Data & Stock Exchanges
2 Euromoney Institutional Investor plc $1.82 B

(Nov. 1, 2022)

 United Kingdom UK Financials UK Financial Data & Stock Exchanges
3 Aquis Exchange plc $218.3 M

(July 1, 2025)

 United Kingdom UK Financials UK Financial Data & Stock Exchanges

Top Financial Data & Stock Exchanges Companies from the United Kingdom as of Jan. 01, 2026

1. London Stock Exchange Group plc

Company Profile: London Stock Exchange Group plc
Market Cap (USD): $60.40 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Financial Data & Stock Exchanges

2. Euromoney Institutional Investor plc

Company Profile: Euromoney Institutional Investor plc
Market Cap (USD): $1.82 B (Nov. 1, 2022)
Country: United Kingdom
Sector: UK Financials
Industry: UK Financial Data & Stock Exchanges

3. Aquis Exchange plc

Company Profile: Aquis Exchange plc
Market Cap (USD): $218.3 M (July 1, 2025)
Country: United Kingdom
Sector: UK Financials
Industry: UK Financial Data & Stock Exchanges

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