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Y Combinator Fintech portfolio in London

The most prolific seed accelerator in the world, batch class twice a year. Filtered to Fintech companies headquartered in London.

Built from a search like: “Y Combinator-backed Fintech companies in London”

Ranked by current headcount across Y Combinator-backed Fintech companies in London. Refreshed daily.

  1. 1
    Monzo Bank· London, England, United Kingdom
    • Secondary
    • 4.8k employees
    • Founded 2015
  2. 2
    LemFi· London, England, United Kingdom
    • Series B
    • 406 employees
    • Founded 2020
  3. 3
    Verto· London, England, United Kingdom
    • Grant
    • 255 employees
    • Founded 2017
  4. 4
    Aspora· London, England, United Kingdom
    • Series B
    • 184 employees
    • Founded 2022
  5. 5
    Runa· London, England, United Kingdom
    • Series B
    • 143 employees
    • Founded 2016
  6. 6
    Saturn· London, England, United Kingdom
    • Series A
    • 68 employees
    • Founded 2023
  7. 7
    Capi Money· London, England, United Kingdom
    • Series A
    • 58 employees
    • Founded 2023
  8. 8
    Female Invest· London, England, United Kingdom
    • Series A
    • 51 employees
    • Founded 2019
  9. 9
    Bits· London, England, United Kingdom
    • Seed
    • 47 employees
    • Founded 2018
  10. 10
    Prospa· London, England, United Kingdom
    • Pre-seed
    • 44 employees
    • Founded 2019
  11. 11
    nsave· London, England, United Kingdom
    • Series A
    • 39 employees
    • Founded 2022
  12. 12
    Pi Labs· London, England, United Kingdom
    • Series A
    • 35 employees
    • Founded 2014
  13. 13
    Coinrule (YC)· London, England, United Kingdom
    • Seed
    • 13 employees
    • Founded 2017
  14. 14
    BackFuture· London, England, United Kingdom
    • Seed
    • 13 employees
  15. 15
    Selfin (YC F25)· London, England, United Kingdom
    • Pre-seed
    • 11 employees
    • Founded 2025
  16. 16
    Partna (YC W22)· London, England, United Kingdom
    • Seed
    • 9 employees
    • Founded 2019
  17. 17
    Zavo· London, England, United Kingdom
    • Seed
    • 8 employees
    • Founded 2024
  18. 18
    Revenir· London, England, United Kingdom
    • Pre-seed
    • 7 employees
    • Founded 2019
  19. 19
    Houghton Street Ventures· Greater London, England, United Kingdom
    • Seed
    • 5 employees
    • Founded 2019

Y Combinator-backed Fintech companies in London

The list above ranks Y Combinator-backed Fintech companies headquartered in London by current headcount, drawn from public LinkedIn and Crunchbase records. With 19 matching companies in our index, you can see exactly where Y Combinator’s Fintech thesis has landed in London.

Three filters — investor, industry, city — narrow the field to a tight cluster of operators with overlapping incentives. They share a thesis, a network, and a market. Hiring from this list usually means hiring someone already inside the Y Combinator Fintech world in London.

Refolk converts this list into a live search. Ask for “Y Combinator Fintech companies in Londonhiring senior engineers” or “founders of Y Combinator-backed Fintech companies in London who left in the last year” and Refolk returns a ranked shortlist.

How this list is built

Refolk pulled Fintech companies headquartered in London whose disclosed Crunchbase investor list includes Y Combinator, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 06:08:50 GMT

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