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Seed Developer tools companies in San Francisco

IDEs, runtimes, frameworks, and platforms built primarily for engineers. Filtered to Seed-stage companies headquartered in San Francisco.

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

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

  1. 1
    Wish· San Francisco, California, United States
    • Seed
    • 879 employees
    • Founded 2010
  2. 2
    Prive (Now Recurly Commerce)· San Francisco, California, United States
    • Seed
    • 741 employees
    • Founded 2021
  3. 3
    Pareto.AI· San Francisco, California, United States
    • Seed
    • 571 employees
    • Founded 2020
  4. 4
    Agency· San Francisco, California, United States
    • Seed
    • 527 employees
    • Founded 2023
  5. 5
    Scorp· San Francisco, California, United States
    • Seed
    • 511 employees
    • Founded 2015
  6. 6
    Cantina Labs· San Francisco, California, United States
    • Seed
    • 403 employees
    • Founded 2023
  7. 7
    Office Hours· San Francisco, California, United States
    • Seed
    • 400 employees
    • Founded 2020
  8. 8
    VentureBeat· San Francisco, California, United States
    • Seed
    • 323 employees
    • Founded 2006
  9. 9
    AdvantageClub.ai· San Francisco, California, United States
    • Seed
    • 309 employees
    • Founded 2016
  10. 10
    testRigor· San Francisco, California, United States
    • Seed
    • 296 employees
    • Founded 2015
  11. 11
    Stellar Development Foundation· San Francisco, California, United States
    • Seed
    • 260 employees
    • Founded 2014
  12. 12
    Guide· San Francisco, California, United States
    • Seed
    • 224 employees
    • Founded 2021
  13. 13
    Close· San Francisco, California, United States
    • Seed
    • 203 employees
    • Founded 2013
  14. 14
    Gushwork· San Francisco, California, United States
    • Seed
    • 203 employees
    • Founded 2023
  15. 15
    Brix· San Francisco, California, United States
    • Seed
    • 187 employees
    • Founded 2023
  16. 16
    Beem· San Francisco, California, United States
    • Seed
    • 183 employees
    • Founded 2020
  17. 17
    Mon Ami· San Francisco, California, United States
    • Seed
    • 182 employees
    • Founded 2018
  18. 18
    Need Inc· San Francisco, California, United States
    • Seed
    • 181 employees
    • Founded 2013
  19. 19
    Banana· San Francisco, California, United States
    • Seed
    • 168 employees
    • Founded 2021
  20. 20
    App Academy· San Francisco, California, United States
    • Seed
    • 156 employees
    • Founded 2012
  21. 21
    Sprouts.ai· San Francisco, California, United States
    • Seed
    • 152 employees
    • Founded 2022
  22. 22
    mason· San Francisco, California, United States
    • Seed
    • 145 employees
    • Founded 2020
  23. 23
    Writesonic· San Francisco, California, United States
    • Seed
    • 127 employees
    • Founded 2021
  24. 24
    Hostfully· San Francisco, California, United States
    • Seed
    • 124 employees
    • Founded 2015
  25. 25
    lablab.ai· San Francisco, California, United States
    • Seed
    • 111 employees
    • Founded 2020

Find engineers at Seed Developer tools companies in San Francisco

Searching for “engineers at top Seed Developer tools companies in San Francisco” surfaces this slice of the market. The list above ranks Developer tools companies headquartered in San Francisco whose latest disclosed round is Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. With 803 matching companies in our index, this is a tight read on where the Developer tools talent in San Francisco is heating up.

Three filters at once narrows the field hard. The companies that survive all three — Seed, Developer tools, 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 Developer tools’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Seed Developer tools companies in San Francisco hiring” or “founders of Seed Developer tools 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 Developer tools 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: Thu, 07 May 2026 05:57:17 GMT

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