London's 250 fastest growing tech companies

Ranked by a score out of 100 from three signals we can source. Every row shows where its points came from.

Measured on 13 Oct 2026 across the Fastest growing and Up and coming companies on the map (well known companies are left out). 215 raised a round in the last two years, 69 grew staff in their latest accounts and 96 are hiring in London right now; 14 show all three. A signal we do not have scores 0, so a company that keeps its numbers private can rank lower than it should. How the score works

• Funding: last equity round in the past 24 months, size and recency, up to 40
• Staff growth: year-on-year growth in Companies House accounts, up to 35
• Hiring: open London roles on its own job board, up to 25