London Fintech Companies
Fintech lists usually rank by valuation. That is the weakest number available, because a private valuation is one price on one date and it can be years old by the time you read it.
These companies now publish audited revenue and profit. So this list leads with those, and gives the valuation second, with the date attached. Checked August 2026.
The largest, by their own reported figures
| Company | Latest reported year | Revenue | Profit before tax | Customers |
|---|---|---|---|---|
| Revolut | Calendar 2025 | $6.0bn (£4.5bn), up 46% | $2.3bn, up 57% | 68.3m retail, 767,000 business |
| Monzo | Year to 31 March 2026 | £1.7bn, up 39% | £172.6m adjusted, up 20% | 15.2m |
| Starling | FY26 | £887.4m | £217.1m, down from £223.4m | 6.2m platform accounts |
Read the Monzo and Starling rows together, because they say something a valuation cannot. Monzo earned roughly twice Starling’s revenue and produced less than half the profit. Starling’s pre-tax margin was about 24%. Monzo’s adjusted profit against £1.7bn of revenue is around 10%.
Two other figures worth having:
- Monzo’s customer deposits rose 55% to £25.7bn, with savings deposits up 75% to £15.5bn.
- Starling’s deposits reached £12.7bn, and its software arm Engine has £70m of committed annual recurring revenue.
The private valuation marks
Only three of the big London fintechs have a recent, publicly stated private valuation.
| Company | Valuation | What set it | Announced |
|---|---|---|---|
| Revolut | $75bn | Secondary share sale led by Coatue, Greenoaks, Dragoneer and Fidelity | 24 Nov 2025 |
| Checkout.com | $12bn | Employee share buyback | 26 Sep 2025 |
| Wise | Public company | Nasdaq primary listing, London secondary | 11 May 2026 |
Checkout.com is the cautionary one. It was marked at $40bn in a 2022 round. The 2025 buyback put it at $12bn, a fall of about 70%. Any list still carrying the $40bn figure is not slightly stale, it is wrong by $28bn. More on how these marks are set in the valuation tracker.
Monzo and Starling are usually quoted at £4.5bn and £2.5bn. Both figures come from transactions in 2022 and 2024, not from anything announced recently, so we have left them out rather than present them as current. Reported IPO target valuations are press estimates, not priced deals.
Two changes older lists have missed
Revolut became a fully licensed UK bank on 11 March 2026. The Prudential Regulation Authority lifted the restrictions on its authorisation after an eighteen-month mobilisation period, following the restricted licence granted in July 2024. Deposits at Revolut’s UK bank now carry FSCS protection. Any description of Revolut as “awaiting a banking licence” is out of date.
Freetrade is no longer independent. IG Group completed its acquisition on 1 April 2025 for £160m in cash. Freetrade had 720,000 customers and £2.5bn under administration at the end of 2024, with revenue of £27.5m. The £160m price was about 29% below its previous valuation. It still trades under its own brand, as a subsidiary.
Wise has moved its primary listing. It debuted on Nasdaq on 11 May 2026 and kept a secondary listing in London. The company remains headquartered in London.
What the funding market did this year
Innovate Finance’s half-year data, reported by FinTech Global on 31 July 2026, puts UK fintech second globally and first in Europe:
- UK companies did 187 deals in the first half of 2026, up from 181 a year earlier.
- That was 35% of all European fintech deals. France was second on 61 deals, Germany third on 42.
- European fintech raised $9.2bn across 541 deals, up 5% on the first half of 2025.
- Global fintech investment was $28.6bn across 1,411 deals, down 12% on the second half of 2025.
The UK held its share while the global total fell. That is the honest reading: not a boom, but a market losing less ground than the rest.
Checking a fintech’s numbers yourself
Every company above is a UK entity with filing obligations, so you can verify most claims without a paid database.
- Companies House. Annual accounts give revenue, losses and cash. Share allotments filed on form SH01 give the price paid per share in a funding round.
- The FCA register. It shows whether a firm is authorised, what permissions it holds, and whether it is a bank or an e-money institution. Those are very different things for a depositor.
- The company’s own results announcement. Every revenue and profit figure in the tables above comes from one.
Be careful with two common shortcuts. “Users” and “customers” often mean signups rather than active accounts, and companies rarely define the term. And a valuation attributed to unnamed sources ahead of a deal frequently does not survive the deal.
Frequently asked questions
Which is the biggest fintech company in London?
Revolut, on any measure. It reported $6.0bn of revenue and $2.3bn of pre-tax profit for 2025, with 68.3 million retail customers, and holds a $75bn valuation set in November 2025.
Is Monzo or Starling more profitable?
Starling, by a wide margin. Starling made £217.1m of pre-tax profit on £887.4m of revenue in FY26. Monzo made £172.6m of adjusted pre-tax profit on £1.7bn. Starling earns roughly a quarter of every pound of revenue as profit before tax; Monzo earns around a tenth.
How many fintech companies are there in London?
Counts in the thousands are published, but none of the widely quoted ones state a method or a date, so we do not repeat them. What is measurable is deal activity: 187 UK fintech deals in the first half of 2026, 35% of the European total.