🦄 The Top 20 Private Tech Companies in the UK - September 2025

As of 16th September 2025, Revolut is the UK's largest private tech company, valued at $75B, followed by FNZ at $20B and Access at $11.6B.

➡️ Only one king - Revolut - valued at staggering $75B

➡️ OnlyFans is the UK's 9th highest valued private tech company

➡️ Fintech is the UK's superpower - 12 out 20 (!) companies on the list operate across fintech/payments

➡️ The top 20 companies have combined $200B+ in value

Methodology: this ranking includes 20 largest private tech companies in the UK. It might include acquired companies that operate in a standalone way. Most valuations are last reported or recently rumoured.

On ZIRP-era valuations: we exclude companies that latest reported valuation would be enough to hit the list, but it is expected that the company is now valued significantly lower.

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