United Kingdom

Top 22 largest UK Companies in the Capital Markets industry by Market Cap

This is the list of the largest public listed companies in the Capital Markets industry from the United Kingdom by market capitalization with links to their reference stock.

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Top Capital Markets Companies from the United Kingdom as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 Investec plc $7.82 B United Kingdom UK Financials UK Capital Markets
2 IG Group Holdings plc $5.02 B United Kingdom UK Financials UK Capital Markets
3 TP ICAP plc $2.87 B United Kingdom UK Financials UK Capital Markets
4 AJ Bell plc $2.80 B United Kingdom UK Financials UK Capital Markets
5 Alpha FX Group plc $1.92 B United Kingdom UK Financials UK Capital Markets
6 CMC Markets plc $932.8 M United Kingdom UK Financials UK Capital Markets
7 Close Brothers Group plc $834.0 M United Kingdom UK Financials UK Capital Markets
8 Numis Corporation plc $465.4 M

(July 1, 2023)

 United Kingdom UK Financials UK Capital Markets
9 FRP Advisory Group plc $437.7 M United Kingdom UK Financials UK Capital Markets
10 CoinShares International Ltd $359.0 M

(July 1, 2024)

 United Kingdom UK Financials UK Capital Markets
11 K3 Capital Group plc $343.0 M

(Feb. 1, 2023)

 United Kingdom UK Financials UK Capital Markets
12 Tavistock Investments plc $26.5 M United Kingdom UK Financials UK Capital Markets
13 Argo Blockchain plc $19.2 M United Kingdom UK Financials UK Capital Markets
14 Jarvis Securities plc $11.1 M United Kingdom UK Financials UK Capital Markets
15 ADVFN plc $7.6 M

(Jan. 1, 2025)

 United Kingdom UK Financials UK Capital Markets
16 WH Ireland Group plc $7.0 M United Kingdom UK Financials UK Capital Markets
17 Argentex Group plc $5.6 M United Kingdom UK Financials UK Capital Markets
18 Marechale Capital plc $3.1 M United Kingdom UK Financials UK Capital Markets
19 Quantum Blockchain Technologies Plc United Kingdom UK Financials UK Capital Markets
20 Peel Hunt Limited United Kingdom UK Financials UK Capital Markets
21 Cavendish Financial plc United Kingdom UK Financials UK Capital Markets
22 Alpha Group International plc United Kingdom UK Financials UK Capital Markets

Top Capital Markets Companies from the United Kingdom as of Jul. 01, 2025

1. Investec plc

Company Profile: Investec plc
Market Cap (USD): $7.82 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

2. IG Group Holdings plc

Company Profile: IG Group Holdings plc
Market Cap (USD): $5.02 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

3. TP ICAP plc

Company Profile: TP ICAP plc
Market Cap (USD): $2.87 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

4. AJ Bell plc

Company Profile: AJ Bell plc
Market Cap (USD): $2.80 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

5. Alpha FX Group plc

Company Profile: Alpha FX Group plc
Market Cap (USD): $1.92 B
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

6. CMC Markets plc

Company Profile: CMC Markets plc
Market Cap (USD): $932.8 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

7. Close Brothers Group plc

Company Profile: Close Brothers Group plc
Market Cap (USD): $834.0 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

8. Numis Corporation plc

Company Profile: Numis Corporation plc
Market Cap (USD): $465.4 M (July 1, 2023)
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

9. FRP Advisory Group plc

Company Profile: FRP Advisory Group plc
Market Cap (USD): $437.7 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

10. CoinShares International Ltd

Company Profile: CoinShares International Ltd
Market Cap (USD): $359.0 M (July 1, 2024)
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

11. K3 Capital Group plc

Company Profile: K3 Capital Group plc
Market Cap (USD): $343.0 M (Feb. 1, 2023)
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

12. Tavistock Investments plc

Company Profile: Tavistock Investments plc
Market Cap (USD): $26.5 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

13. Argo Blockchain plc

Company Profile: Argo Blockchain plc
Market Cap (USD): $19.2 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

14. Jarvis Securities plc

Company Profile: Jarvis Securities plc
Market Cap (USD): $11.1 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

15. ADVFN plc

Company Profile: ADVFN plc
Market Cap (USD): $7.6 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

16. WH Ireland Group plc

Company Profile: WH Ireland Group plc
Market Cap (USD): $7.0 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

17. Argentex Group plc

Company Profile: Argentex Group plc
Market Cap (USD): $5.6 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

18. Marechale Capital plc

Company Profile: Marechale Capital plc
Market Cap (USD): $3.1 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

19. Quantum Blockchain Technologies Plc

Company Profile: Quantum Blockchain Technologies Plc
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

20. Peel Hunt Limited

Company Profile: Peel Hunt Limited
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

21. Cavendish Financial plc

Company Profile: Cavendish Financial plc
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

22. Alpha Group International plc

Company Profile: Alpha Group International plc
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

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