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Y Combinator portfolio Fintech companies

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

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

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

  1. 1
    Y Combinator· United States
    • 8.9k employees
    • Founded 2005
  2. 2
    Coinbase· First, West Virginia, United States
    • Post-IPO debt
    • 7.4k employees
    • Founded 2012
  3. 3
    Cowrywise· Ikeja, Lagos State, Nigeria
    • Seed
    • 5.5k employees
    • Founded 2017
  4. 4
    Monzo· London, England, United Kingdom
    • Secondary
    • 5.3k employees
    • Founded 2015
  5. 5
    Wave Mobile Money· Arrondissement de Mbadakhoune, Kaolack Region, Senegal
    • Debt
    • 5.2k employees
    • Founded 2017
Reveal 403 more·100 free credits, no card

Y Combinator’s Fintech portfolio

The list above ranks Y Combinator-backed Fintech companies by current headcount, drawn from public LinkedIn and Crunchbase records. 408 matching companies in our index give you a quick read on where Y Combinator has gone deepest in the Fintech space.

Y Combinator’s Fintech bets tend to share a thesis. The engineers, ML researchers, and founders inside these companies are often building the same primitives - and they show up in Fintech talent pools across the next decade.

Refolk converts this list into a live search. Ask for “Y Combinator Fintechcompanies hiring senior engineers” or “founders of Y Combinator-backed Fintechcompanies” and Refolk returns a fresh ranked shortlist.

How this list is built

Refolk pulled Fintech companies whose disclosed Crunchbase investor list includes Y Combinator, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 09:14:31 GMT

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