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Seed AI companies in San Francisco

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

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Built from a search like: “Top Seed AI companies in San Francisco”

Ranked by current headcount across Seed AI companies in San Francisco. Refreshed daily.

  1. 1
    Liquid Trees· San Francisco, California, United States
    • Seed
    • 1.5k employees
    • Founded 2022
  2. 2
    OPTIC· San Francisco, California, United States
    • Seed
    • 280 employees
    • Founded 2021
  3. 3
    Athena Alliance· San Francisco, California, United States
    • Seed
    • 238 employees
    • Founded 2021
  4. 4
    Miracle· San Francisco, California, United States
    • Seed
    • 67 employees
    • Founded 2022
  5. 5
    Grand Time Research (Coordination Layer)· San Francisco, California, United States
    • Seed
    • 62 employees
    • Founded 2017
Reveal 73 more·100 free credits, no card

Find engineers at Seed AI companies in San Francisco

Searching for “engineers at top Seed 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 Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. With 78 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 - Seed, 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 Seed AI companies in San Francisco hiring” or “founders of Seed 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 Seed 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 07:18:49 GMT

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