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Top Seed companies in London

Companies on their seed round, typically the first priced equity raise. Filtered to companies headquartered in London.

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

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

  1. 1
    Capita· London, England, United Kingdom
    • Seed
    • 25.6k employees
    • Founded 1984
  2. 2
    Cloud Consulting· London, England, United Kingdom
    • Seed
    • 14.6k employees
    • Founded 2018
  3. 3
    Foreign, Commonwealth and Development Office· London, England, United Kingdom
    • Seed
    • 6.6k employees
  4. 4
    Idea· London, England, United Kingdom
    • Seed
    • 3.7k employees
    • Founded 1999
  5. 5
    Healthcare AI· London, England, United Kingdom
    • Seed
    • 3.4k employees
    • Founded 2024
Reveal 2,057 more·100 free credits, no card

Find engineers at Seed companies in London

Seed companies in London are some of the fastest-moving employers in the market. The list above ranks the largest Seed-stage companies headquartered in London by current headcount, drawn from public LinkedIn and Crunchbase records. With 2,062 matching companies in our index, the density of senior engineers, designers, and founders is unusually high.

At Seed, teams tend to be small, ambitious, and on the hunt for senior talent. The companies on this list are good signals for where the Londontalent market is heating up - and for which engineers and founders are about to become tomorrow’s operators.

Refolk converts this list into a live search. Ask for “founders of Seed companies in London” or “senior engineers at Seed companies in London hiring” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled Seed companies headquartered in London from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 09:19:31 GMT

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