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Seed AI companies in London

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

Edit the query above, or pick a refinement. 100 free credits on sign-up, no card needed.

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

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

  1. 1
    LYMA· London Colney, England, United Kingdom
    • Seed
    • 105 employees
    • Founded 2018
  2. 2
    Clerkenwell Health· London, England, United Kingdom
    • Seed
    • 64 employees
    • Founded 2020
  3. 3
    Bactobio· London, England, United Kingdom
    • Seed
    • 54 employees
    • Founded 2020
  4. 4
    Prima Mente· London, England, United Kingdom
    • Seed
    • 41 employees
    • Founded 2023
  5. 5
    Early· London, England, United Kingdom
    • Seed
    • 29 employees
    • Founded 2022
Reveal 54 more·100 free credits, no card

Find engineers at Seed AI companies in London

Searching for “engineers at top Seed AI companies in London” surfaces this slice of the market. The list above ranks AI companies headquartered in London whose latest disclosed round is Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. With 59 matching companies in our index, this is a tight read on where the AI talent in London is heating up.

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

Refolk converts this list into a live search. Ask for “senior engineers at Seed AI companies in London hiring” or “founders of Seed AI 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 AI 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: Sun, 21 Jun 2026 10:39:19 GMT

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