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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.

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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
    • 9.4k employees
    • Founded 2015
  2. 2
    Cytovale· South San Francisco, California, United States
    • Series unknown
    • 122 employees
    • Founded 2013
  3. 3
    Ossium Health· San Francisco, California, United States
    • Series unknown
    • 101 employees
    • Founded 2016
  4. 4
    Decipher by Veracyte· South San Francisco, California, United States
    • Series unknown
    • 99 employees
    • Founded 2008
  5. 5
    Mission Bio· South San Francisco, California, United States
    • Series unknown
    • 88 employees
    • Founded 2014
Reveal 28 more·100 free credits, no card

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 33 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: Sun, 21 Jun 2026 12:11:48 GMT

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