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Top Fintech companies in the United Kingdom

Companies modernising banking, payments, lending, and financial infrastructure. Filtered to companies headquartered in the United Kingdom.

Built from a search like: “Top Fintech companies in the United Kingdom”

Ranked by current headcount across Fintech companies headquartered in the United Kingdom. Refreshed daily.

  1. 1
    HSBC· London, England, United Kingdom
    • Post-IPO debt
    • 195.4k employees
  2. 2
    Aon· London, England, United Kingdom
    • Post-IPO debt
    • 92.6k employees
    • Founded 1979
  3. 3
    Barclays· London, England, United Kingdom
    • 80.9k employees
  4. 4
    Standard Chartered· London, England, United Kingdom
    • Post-IPO debt
    • 78.6k employees
  5. 5
    Lloyds Banking Group· London, England, United Kingdom
    • 62.9k employees
    • Founded 1985
  6. 6
    WTW· London, England, United Kingdom
    • 57.3k employees
    • Founded 1950
  7. 7
    NatWest Group· Edinburgh, Scotland, United Kingdom
    • Post-IPO debt
    • 44.1k employees
  8. 8
    Virgin· London, England, United Kingdom
    • 36.8k employees
  9. 9
    Intertek· London, England, United Kingdom
    • Grant
    • 30.6k employees
    • Founded 1996
  10. 10
    Aviva· London, England, United Kingdom
    • Post-IPO equity
    • 26.3k employees
  11. 11
    LSEG· London, England, United Kingdom
    • post ipo secondary
    • 24.6k employees
    • Founded 2007
  12. 12
    RBS· United Kingdom
    • Private equity
    • 23.3k employees
    • Founded 2009
  13. 13
    Revolut· London, England, United Kingdom
    • Secondary
    • 16.8k employees
    • Founded 2015
  14. 14
    Howden· London, England, United Kingdom
    • Grant
    • 13.7k employees
    • Founded 1994
  15. 15
    Nationwide Building Society· Swindon, England, United Kingdom
    • Grant
    • 13.1k employees
  16. 16
    Finastra· London, England, United Kingdom
    • Debt
    • 12.5k employees
    • Founded 2017
  17. 17
    Admiral Group Plc· Cardiff, Wales, United Kingdom
    • 10.7k employees
    • Founded 1993
  18. 18
    Wise· London, England, United Kingdom
    • Post-IPO debt
    • 10.1k employees
    • Founded 2011
  19. 19
    Santander UK· London, England, United Kingdom
    • 9.8k employees
    • Founded 1988
  20. 20
    Barclays UK· London, England, United Kingdom
    • 9.8k employees
  21. 21
    Fidelity International· London, England, United Kingdom
    • 9.7k employees
    • Founded 1969
  22. 22
    Investec· London, England, United Kingdom
    • Post-IPO debt
    • 9.7k employees
    • Founded 1974
  23. 23
    Legal & General· London, England, United Kingdom
    • Post-IPO debt
    • 9.3k employees
  24. 24
    RSA· London, England, United Kingdom
    • 9k employees
    • Founded 1956
  25. 25
    Apex Group Ltd (UK & Ireland)· London, England, United Kingdom
    • 9k employees

Find engineers at Fintech companies in the United Kingdom

the United Kingdom has long been a hub for Fintech, and the list above ranks the largest Fintech companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 10,926 matching companies in our index, this is a good map of where the Fintech talent in the United Kingdomlives — useful whether you’re recruiting, partnering, or sizing a market.

The biggest Fintech companies in the United Kingdom tend to be the gravitational centres for specialised talent — senior engineers, ML researchers, applied scientists, designers — while the smaller ones compete on speed, equity, and proximity to founders.

Refolk converts this list into a live search. Ask for “Fintech engineers in the United Kingdomhiring senior staff” or “founders of Fintech companies in the United Kingdomwho left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.

How this list is built

Refolk pulled Fintech companies headquartered in the United Kingdom from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 10 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 06:54:00 GMT

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