London Tech Company Profiles

Most company profile pages are assembled from other company profile pages. The figures get copied forward, the dates get dropped, and after two years the profile describes a company that no longer exists in that form.

This page does the opposite. Eight London companies, one hard figure each, the date it was set, and the source. Then the method, so you can build a profile for any UK company yourself without paying for a database.

The ecosystem, in numbers with a date

Dealroom’s London city profile, checked in August 2026, tracks:

  • 11,500 funded startups in the city.
  • 161 companies valued between $1bn and $10bn.
  • $713bn of combined enterprise value, which grew 5.6 times over five years.
  • $21.3bn of venture capital invested across the tracked ecosystem.

London is well ahead of any other UK cluster on this measure. The East of England, which includes Cambridge, is second at $205bn of enterprise value.

Eight profiles

Revolut. Financial services. Reported $6.0bn of revenue and $2.3bn of pre-tax profit for calendar 2025, with 68.3 million retail customers. Valued at $75bn in a secondary share sale announced 24 November 2025. Became a fully licensed UK bank on 11 March 2026. More in the fintech list.

Monzo. Digital bank. Revenue of £1.7bn and adjusted pre-tax profit of £172.6m for the year to 31 March 2026, its third consecutive profitable year. 15.2 million customers and £25.7bn of deposits, from its own annual report.

Wise. Cross-border payments. Moved its primary listing to Nasdaq on 11 May 2026, keeping a secondary listing in London and its London headquarters. As a listed company its numbers are quarterly and public, which makes it the easiest company on this page to verify.

Wayve. Self-driving software. Raised a $1.2bn Series D at an $8.6bn valuation, led by Eclipse, Balderton and SoftBank Vision Fund 2, announced 25 February 2026.

ElevenLabs. Voice AI. Raised a $500m Series D led by Sequoia Capital at an $11bn valuation, announced 4 February 2026.

Synthesia. AI video generation, co-founded by a UCL professor. Valued at $4bn in a $200m round in October 2025, confirmed by UCL.

Isomorphic Labs. Drug design, spun out of Google DeepMind in King’s Cross. Closed a $2.1bn Series B in May 2026. No valuation was disclosed with the round, so we do not give one.

Deliveroo. No longer independent. DoorDash completed its acquisition on 2 October 2025 at 180p a share, valuing Deliveroo at about £2.9bn. It appears here because it still sits on most London tech lists as a standalone company.

Four of those eight had their headline number set in 2026. Two were set in 2025. One company on the list has been acquired outright. That churn rate is the reason a profile without a date is close to worthless.

Building a profile yourself

Every UK company files, and the filings are free. For a private company this beats any paid summary, because you are reading the primary document.

  1. Companies House. Search the company name, then open the filing history. Annual accounts give revenue, losses, cash and employee numbers. Form SH01 records share allotments, which means the number of shares issued and the price paid in a funding round. Multiply by the fully diluted share count and you have a floor for the post-money valuation.
  2. The confirmation statement. This lists shareholders and persons with significant control. It shows who actually owns the company, which press coverage rarely does.
  3. The company’s own announcements. A priced round with a named lead investor and a stated valuation is the strongest evidence available. Every valuation on this page comes from one.
  4. The FCA register, if the company is regulated. It shows the permissions held and whether authorisation is restricted.
  5. The filing dates. An overdue set of accounts is a signal. So is a company that has switched to filing micro-entity accounts after previously filing full ones.

Two traps worth naming. Small companies file abridged accounts that omit revenue entirely, so absence of a figure is not evidence of a bad year. And group structures mean the trading entity you want may not be the one with the recognisable name; check for a holdings company above it.

What we removed from the older version of this page

The previous version of this page claimed a database of over 10,000 London tech companies, £180bn of combined valuation, 2.3 million tech jobs and profiles covering revenue, executives, partnerships and clients for each one.

No such database existed on this site, and none of those four figures cited a source. They have been removed rather than restated. The Dealroom counts at the top of this page are the nearest verifiable equivalent, and they are counts of venture-backed companies rather than all tech businesses, which is a narrower thing.

Frequently asked questions

How many tech companies are there in London?

There is no single authoritative count, because it depends entirely on what counts as a tech company. Dealroom tracks 11,500 funded startups in the city as at August 2026. That figure covers companies that have raised institutional money, so it excludes bootstrapped and self-funded businesses.

Where can I find free company profiles for London businesses?

Companies House, for any UK-registered company. It gives accounts, shareholders, directors and share issuances at no cost. Commercial databases repackage the same filings with an interface on top.

Which London tech companies are worth the most?

Revolut, at $75bn set in November 2025, is well clear of the rest. ElevenLabs at $11bn and Wayve at $8.6bn follow, both set in February 2026. The full ranking, with the deal behind each mark, is in the valuation tracker.