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Seed Developer tools companies in London

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

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

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

  1. 1
    Healthcare AI· London, England, United Kingdom
    • Seed
    • 3.4k employees
    • Founded 2024
  2. 2
    J.D. Edwards· London, England, United Kingdom
    • Seed
    • 2k employees
    • Founded 1988
  3. 3
    Anything World· London, England, United Kingdom
    • Seed
    • 837 employees
    • Founded 2018
  4. 4
    Shopper.com· London, England, United Kingdom
    • Seed
    • 433 employees
    • Founded 2018
  5. 5
    Goodnotes· London, England, United Kingdom
    • Seed
    • 365 employees
    • Founded 2011
  6. 6
    social.plus· London, England, United Kingdom
    • Seed
    • 364 employees
    • Founded 2021
  7. 7
    Hotel Manager· London, England, United Kingdom
    • Seed
    • 245 employees
    • Founded 2020
  8. 8
    YR thisisyr· London, England, United Kingdom
    • Seed
    • 219 employees
    • Founded 2013
  9. 9
    YouView TV Limited· London, England, United Kingdom
    • Seed
    • 200 employees
    • Founded 2012
  10. 10
    Andromeda POS· London, England, United Kingdom
    • Seed
    • 193 employees
    • Founded 1999
  11. 11
    Oli· London, England, United Kingdom
    • Seed
    • 152 employees
    • Founded 2020
  12. 12
    Fanvue· London, England, United Kingdom
    • Seed
    • 147 employees
    • Founded 2021
  13. 13
    ScreenCloud· London, England, United Kingdom
    • Seed
    • 135 employees
    • Founded 2015
  14. 14
    Neol· London, England, United Kingdom
    • Seed
    • 123 employees
    • Founded 2022
  15. 15
    Virtuoso QA· London, England, United Kingdom
    • Seed
    • 111 employees
    • Founded 2016
  16. 16
    KYC Hub· London, England, United Kingdom
    • Seed
    • 103 employees
    • Founded 2019
  17. 17
    Fincore Ltd· London, England, United Kingdom
    • Seed
    • 102 employees
    • Founded 2007
  18. 18
    Kato· London, England, United Kingdom
    • Seed
    • 87 employees
    • Founded 2019
  19. 19
    LemonEdge· Greater London, England, United Kingdom
    • Seed
    • 79 employees
    • Founded 2020
  20. 20
    PRIVIT· London, Kansas, United States
    • Seed
    • 77 employees
    • Founded 2009
  21. 21
    Corefy· London, England, United Kingdom
    • Seed
    • 72 employees
    • Founded 2018
  22. 22
    trumpet 🎺· London, England, United Kingdom
    • Seed
    • 69 employees
    • Founded 2021
  23. 23
    Native Commerce· London, England, United Kingdom
    • Seed
    • 68 employees
    • Founded 2021
  24. 24
    AgrigateOne· London, England, United Kingdom
    • Seed
    • 67 employees
    • Founded 2018
  25. 25
    Tab· London, England, United Kingdom
    • Seed
    • 66 employees
    • Founded 2015

Find engineers at Seed Developer tools companies in London

Searching for “engineers at top Seed Developer tools companies in London” surfaces this slice of the market. The list above ranks Developer tools companies headquartered in London whose latest disclosed round is Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. With 466 matching companies in our index, this is a tight read on where the Developer tools talent in London is heating up.

Three filters at once narrows the field hard. The companies that survive all three — Seed, Developer tools, in London — 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 London hiring” or “founders of Seed Developer tools companies in London 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 London 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 06:56:43 GMT

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