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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.

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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· London, England, United Kingdom
    • Secondary
    • 5.3k employees
    • Founded 2015
  2. 2
    LemFi· London, England, United Kingdom
    • Corporate
    • 445 employees
    • Founded 2020
  3. 3
    Verto· London, England, United Kingdom
    • Grant
    • 260 employees
    • Founded 2017
  4. 4
    Aspora· London, England, United Kingdom
    • Series B
    • 212 employees
    • Founded 2022
  5. 5
    Runa· London, England, United Kingdom
    • Series B
    • 138 employees
    • Founded 2016
Reveal 13 more·100 free credits, no card

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 18 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: Sun, 21 Jun 2026 08:22:41 GMT

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