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Late-stage venture AI companies in San Francisco

Companies building AI products, foundation models, and applied ML platforms. Filtered to Late-stage venture-stage companies headquartered in San Francisco.

Built from a search like: Top Late-stage venture AI companies in San Francisco

Ranked by current headcount across Late-stage venture AI companies in San Francisco. Refreshed daily.

  1. 1
    OpenAI· San Francisco, California, United States
    • Series unknown
    • 7.8k employees
    • Founded 2015
  2. 2
    Cytovale· South San Francisco, California, United States
    • Series unknown
    • 121 employees
    • Founded 2013
  3. 3
    Decipher by Veracyte· South San Francisco, California, United States
    • Series unknown
    • 99 employees
    • Founded 2008
  4. 4
    Ohalo· South San Francisco, California, United States
    • Series unknown
    • 97 employees
    • Founded 2019
  5. 5
    Ossium Health· San Francisco, California, United States
    • Series unknown
    • 93 employees
    • Founded 2016
  6. 6
    Mission Bio· South San Francisco, California, United States
    • Series unknown
    • 84 employees
    • Founded 2014
  7. 7
    Verge Genomics· South San Francisco, California, United States
    • Series unknown
    • 28 employees
    • Founded 2015
  8. 8
    Syapse· San Francisco, California, United States
    • Series unknown
    • 27 employees
    • Founded 2008
  9. 9
    SillaJen· San Francisco, California, United States
    • Series unknown
    • 27 employees
    • Founded 2003
  10. 10
    Probably Genetic· San Francisco, California, United States
    • Series unknown
    • 24 employees
    • Founded 2019
  11. 11
    CoMentis, Inc.· South San Francisco, California, United States
    • Series E
    • 21 employees
    • Founded 2006
  12. 12
    Acelot· South San Francisco, California, United States
    • Series unknown
    • 21 employees
    • Founded 2006
  13. 13
    Ion Torrent by Life Technologies· South San Francisco, California, United States
    • Series unknown
    • 18 employees
    • Founded 1983
  14. 14
    cTRL Therapeutics· San Francisco, California, United States
    • Series unknown
    • 16 employees
    • Founded 2019
  15. 15
    Kamau Therapeutics· South San Francisco, California, United States
    • Series unknown
    • 14 employees
    • Founded 2023
  16. 16
    CarbonDrop· San Francisco Bay Area
    • Series unknown
    • 14 employees
    • Founded 2021
  17. 17
    Silver Creek Pharmaceuticals· South San Francisco, California, United States
    • Series unknown
    • 13 employees
    • Founded 2010
  18. 18
    Trishula Therapeutics, Inc.· South San Francisco, California, United States
    • Series unknown
    • 13 employees
    • Founded 2020
  19. 19
    Seranova Bio· South San Francisco, California, United States
    • Series unknown
    • 12 employees
    • Founded 2020
  20. 20
    Kits.AI· San Francisco, California, United States
    • Series unknown
    • 12 employees
    • Founded 2021
  21. 21
    Bio Usawa· San Francisco, California, United States
    • Series unknown
    • 11 employees
    • Founded 2023
  22. 22
    Orbillion Bio [Acquired]· San Francisco, California, United States
    • Series unknown
    • 9 employees
    • Founded 2019
  23. 23
    Revel Pharmaceuticals· San Francisco, California, United States
    • Series unknown
    • 8 employees
    • Founded 2019
  24. 24
    Switchback Systems· San Francisco Bay Area
    • Series unknown
    • 7 employees
    • Founded 2019
  25. 25
    Linkage Biosciences | A Thermo Fisher Scientific Brand· South San Francisco, California, United States
    • Series unknown
    • 7 employees
    • Founded 1984

Find engineers at Late-stage venture AI companies in San Francisco

Searching for “engineers at top Late-stage venture AI companies in San Francisco” surfaces this slice of the market. The list above ranks AI companies headquartered in San Francisco whose latest disclosed round is Late-stage venture, by current headcount, drawn from public LinkedIn and Crunchbase records. With 37 matching companies in our index, this is a tight read on where the AI talent in San Francisco is heating up.

Three filters at once narrows the field hard. The companies that survive all three — Late-stage venture, AI, in San Francisco — are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become AI’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Late-stage venture AI companies in San Francisco hiring” or “founders of Late-stage venture AI companies in San Francisco who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.

How this list is built

Refolk pulled AI companies headquartered in San Francisco whose latest disclosed funding round is Late-stage venture from public LinkedIn and Crunchbase records, 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 08:23:57 GMT

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