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Top IPO companies in London

Public companies and recent post-IPO follow-on raises. Filtered to companies headquartered in London.

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

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

  1. 1
    HSBC· London, England, United Kingdom
    • Post-IPO debt
    • 197.3k employees
  2. 2
    Vodafone· London, England, United Kingdom
    • Post-IPO equity
    • 142.7k employees
    • Founded 1982
  3. 3
    G4S· London, England, United Kingdom
    • Post-IPO equity
    • 116.5k employees
    • Founded 1901
  4. 4
    Aon· London, England, United Kingdom
    • Post-IPO debt
    • 92.8k employees
    • Founded 1979
  5. 5
    DXC Technology· Ashburn, Virginia, United States
    • Post-IPO debt
    • 90.6k employees
    • Founded 2017
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Find engineers at IPO companies in London

IPO companies in London are some of the fastest-moving employers in the market. The list above ranks the largest IPO-stage companies headquartered in London by current headcount, drawn from public LinkedIn and Crunchbase records. With 302 matching companies in our index, the density of senior engineers, designers, and founders is unusually high.

At IPO, 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 IPO companies in London” or “senior engineers at IPO companies in London hiring” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled IPO 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 10:37:48 GMT

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