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Y Combinator Fintech portfolio in San Francisco

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

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

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

  1. 1
    Brex· San Francisco, California, United States
    • Debt
    • 1.8k employees
    • Founded 2017
  2. 2
    Flutterwave· San Francisco, California, United States
    • Secondary
    • 880 employees
    • Founded 2016
  3. 3
    Newfront· San Francisco, California, United States
    • Series D
    • 649 employees
    • Founded 2017
  4. 4
    Every· San Francisco, California, United States
    • Series A
    • 413 employees
    • Founded 2021
  5. 5
    Tilt· San Francisco, California, United States
    • Series B
    • 305 employees
    • Founded 2012
  6. 6
    NALA· San Francisco, California, United States
    • Series A
    • 248 employees
    • Founded 2022
  7. 7
    Arc· San Francisco, California, United States
    • Series A
    • 247 employees
    • Founded 2021
  8. 8
    Lively, Inc.· San Francisco, California, United States
    • Series C
    • 174 employees
    • Founded 2016
  9. 9
    AtoB· San Francisco, California, United States
    • Series C
    • 168 employees
    • Founded 2019
  10. 10
    Vouch Insurance· San Francisco, California, United States
    • Series D
    • 142 employees
    • Founded 2018
  11. 11
    Pibit.AI· South San Francisco, California, United States
    • Series A
    • 135 employees
    • Founded 2020
  12. 12
    Corgi· San Francisco, California, United States
    • Series A
    • 131 employees
    • Founded 2024
  13. 13
    Fivestars by SumUp· San Francisco, California, United States
    • Series D
    • 129 employees
    • Founded 2011
  14. 14
    Angle Health· San Francisco, California, United States
    • Series B
    • 126 employees
    • Founded 2019
  15. 15
    Nova Credit· San Francisco, California, United States
    • Series D
    • 112 employees
    • Founded 2016
  16. 16
    Numeral· San Francisco, California, United States
    • Series B
    • 109 employees
    • Founded 2022
  17. 17
    NFX· San Francisco, California, United States
    • 106 employees
    • Founded 2017
  18. 18
    True Link· San Francisco, California, United States
    • Series B
    • 101 employees
    • Founded 2012
  19. 19
    Aella· San Francisco, California, United States
    • Debt
    • 89 employees
    • Founded 2015
  20. 20
    Shepherd· San Francisco, California, United States
    • Series B
    • 82 employees
    • Founded 2021
  21. 21
    1984 Ventures· San Francisco, California, United States
    • Seed
    • 79 employees
    • Founded 2017
  22. 22
    SV Angel· San Francisco, Minnesota, United States
    • Seed
    • 76 employees
    • Founded 2009
  23. 23
    Legalist· San Francisco, California, United States
    • Series unknown
    • 72 employees
    • Founded 2016
  24. 24
    Hapi App· San Francisco, California, United States
    • Seed
    • 69 employees
    • Founded 2020
  25. 25
    Rank (Formerly Moni)· San Francisco, California, United States
    • non equity assistance
    • 69 employees
    • Founded 2020

Y Combinator-backed Fintech companies in San Francisco

The list above ranks Y Combinator-backed Fintech companies headquartered in San Francisco by current headcount, drawn from public LinkedIn and Crunchbase records. With 87 matching companies in our index, you can see exactly where Y Combinator’s Fintech thesis has landed in San Francisco.

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 San Francisco.

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

How this list is built

Refolk pulled Fintech companies headquartered in San Francisco 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 06:59:18 GMT

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