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Series A Developer tools companies in San Francisco

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

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

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

  1. 1
    Gusto· San Francisco, California, United States
    • Series A
    • 4.4k employees
    • Founded 2011
  2. 2
    micro1· San Francisco Bay Area
    • Series A
    • 4.1k employees
    • Founded 2022
  3. 3
    Anything· San Francisco, California, United States
    • Series A
    • 2k employees
    • Founded 2021
  4. 4
    Jasper· San Francisco, California, United States
    • Series A
    • 1k employees
    • Founded 2020
  5. 5
    Woflow· San Francisco, California, United States
    • Series A
    • 609 employees
    • Founded 2017
  6. 6
    Printify· San Francisco, Minnesota, United States
    • Series A
    • 589 employees
    • Founded 2015
  7. 7
    Humand· San Francisco, California, United States
    • Series A
    • 548 employees
    • Founded 2019
  8. 8
    Be My Eyes· San Francisco, California, United States
    • Series A
    • 362 employees
    • Founded 2012
  9. 9
    Beyond· San Francisco, California, United States
    • Series A
    • 299 employees
    • Founded 2013
  10. 10
    ChangeEngine· San Francisco, California, United States
    • Series A
    • 294 employees
    • Founded 2021
  11. 11
    Tailor· San Francisco, California, United States
    • Series A
    • 248 employees
    • Founded 2021
  12. 12
    Nexus· San Francisco, California, United States
    • Series A
    • 241 employees
    • Founded 2022
  13. 13
    Testsigma· San Francisco, California, United States
    • Series A
    • 239 employees
    • Founded 2019
  14. 14
    interface.ai· San Francisco, California, United States
    • Series A
    • 231 employees
    • Founded 2019
  15. 15
    SecurityPal AI· San Francisco, California, United States
    • Series A
    • 214 employees
    • Founded 2020
  16. 16
    Ema· San Francisco, California, United States
    • Series A
    • 209 employees
    • Founded 2023
  17. 17
    Fathom.ai· San Francisco, California, United States
    • Series A
    • 175 employees
    • Founded 2020
  18. 18
    Elucidata· San Francisco, California, United States
    • Series A
    • 173 employees
    • Founded 2015
  19. 19
    nOps· San Francisco, California, United States
    • Series A
    • 170 employees
    • Founded 2017
  20. 20
    Instaleap· San Francisco, California, United States
    • Series A
    • 170 employees
    • Founded 2019
  21. 21
    Nue.io· San Francisco, California, United States
    • Series A
    • 169 employees
    • Founded 2019
  22. 22
    BLACKBOX.AI· San Francisco, California, United States
    • Series A
    • 169 employees
    • Founded 2018
  23. 23
    AdRoll· San Francisco, California, United States
    • Series A
    • 167 employees
    • Founded 2007
  24. 24
    Uncountable Inc.· San Francisco, California, United States
    • Series A
    • 163 employees
    • Founded 2016
  25. 25
    Cocoon· San Francisco, California, United States
    • Series A
    • 161 employees
    • Founded 2020

Find engineers at Series A Developer tools companies in San Francisco

Searching for “engineers at top Series A 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 Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 358 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 — Series A, 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 Series A Developer tools companies in San Francisco hiring” or “founders of Series A 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 Series A 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 07:45:18 GMT

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