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Series C SaaS companies in London

Software-as-a-service vendors selling subscription cloud software to other businesses. Filtered to Series C-stage companies headquartered in London.

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Built from a search like: “Top Series C SaaS companies in London”

Ranked by current headcount across Series C SaaS companies in London. Refreshed daily.

  1. 1
    Flo Health Inc.· London, England, United Kingdom
    • Series C
    • 689 employees
    • Founded 2015
  2. 2
    Dext· London, England, United Kingdom
    • Series C
    • 511 employees
    • Founded 2010
  3. 3
    Vertice· London, England, United Kingdom
    • Series C
    • 500 employees
    • Founded 2021
  4. 4
    ComplyAdvantage· London, England, United Kingdom
    • Series C
    • 490 employees
    • Founded 2014
  5. 5
    Cognism· London Colney, England, United Kingdom
    • Series C
    • 458 employees
    • Founded 2015
Reveal 30 more·100 free credits, no card

Find engineers at Series C SaaS companies in London

Searching for “engineers at top Series C SaaS companies in London” surfaces this slice of the market. The list above ranks SaaS companies headquartered in London whose latest disclosed round is Series C, by current headcount, drawn from public LinkedIn and Crunchbase records. With 35 matching companies in our index, this is a tight read on where the SaaS talent in London is heating up.

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

Refolk converts this list into a live search. Ask for “senior engineers at Series C SaaS companies in London hiring” or “founders of Series C SaaS 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 SaaS companies headquartered in London whose latest disclosed funding round is Series C 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 11:53:56 GMT

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