Top 40 AI companies in London
The 40 most prominent AI companies with a head office in London, ranked by team size, money raised and how many of their people we hold. Every head office is checked against two sources, Crunchbase and the company’s own LinkedIn page, and a company is left out when they disagree.
- Head office: London, England
- Crunchbase category: Artificial Intelligence
- Verified AI companies
- 1,477
- People working there now
- 80,707
- Data read
At a glance
Google DeepMind has the largest LinkedIn headcount in this list, at 9,916 people worldwide. The #1 company, Nscale, was founded in 2024, and 8 of the top 40 were founded in the last 5 years. The median founding year of the top 40 is 2016, GWI (founded 2009) is the oldest, and Rezolve Ai is the only one whose latest funding status is listed as Public.
The 40 most prominent
40 of 1,477 · ranked by team size, funding and reach| # | Company | Head office | Team size | Founded | Last round | Profiles we hold |
|---|---|---|---|---|---|---|
| 1 |  Nscalenscale.com |
London, England | 989 | 2024 | Debt | 1,006 |
| 2 |  Wayvewayve.ai |
London, United Kingdom | 1,031 | 2017 | Secondary sale | 1,046 |
| 3 |  Multiversemultiverse.io |
London, England | 1,285 | 2016 | Series E | 1,767 |
| 4 |  Ceracerahq.com |
London, England | 1,328 | 2016 | Debt | 1,216 |
| 5 |  Google DeepMinddeepmind.google |
London | 9,916 | 2010 | Series A | 6,176 |
| 6 |  Synthesiasynthesia.io |
London, England | 889 | 2017 | Series E | 1,041 |
| 7 |  Quantexaquantexa.com |
London | 880 | 2016 | Series F | 1,007 |
| 8 |  Isomorphic Labsisomorphiclabs.com |
London, England | 446 | 2021 | Series B | 483 |
| 9 |  Flo Healthflo.health |
London, England | 701 | 2015 | Series C | 907 |
| 10 |  Rezolve Airezolve.com |
London, England | 594 | 2016 | Public | 587 |
| 11 |  GWIgwi.com |
London | 737 | 2009 | Series B | 874 |
| 12 |  9fin9fin.com |
London, England | 642 | 2016 | Series C | 697 |
| 13 |  Cleomeetcleo.com |
London, England | 732 | 2016 | Series C | 906 |
| 14 |  Cognismcognism.com |
London, England | 447 | 2015 | Series C | 809 |
| 15 |  Verticevertice.one |
London, England | 567 | 2021 | Series C | 665 |
| 16 |  PhysicsXphysicsx.ai |
London, England | 323 | 2019 | Series C | 433 |
| 17 |  ComplyAdvantagecomplyadvantage.com |
London, England | 506 | 2014 | Series C | 698 |
| 18 |  InstaDeepinstadeep.com |
London, England | 407 | 2014 | Secondary sale | 513 |
| 19 |  Humahuma.com |
London, England | 288 | 2011 | Series D | 342 |
| 20 |  Ellipticelliptic.co |
London, England | 266 | 2013 | Venture round | 355 |
| 21 |  Humanoidthehumanoid.ai |
London, England | 286 | 2024 | Series A | 333 |
| 22 |  LoopMeloopme.ai |
London, England | 438 | 2012 | Venture round | 538 |
| 23 |  Behavoxbehavox.com |
London, England | 201 | 2014 | Private equity | 311 |
| 24 |  Beamerybeamery.com |
London, England | 193 | 2014 | Debt | 442 |
| 25 |  Ethosaskethos.com |
London, England | 463 | 2024 | Series A | 478 |
| 26 |  Leahleahai.com |
London | 253 | 2015 | Series C | 290 |
| 27 |  proSapientproSapient.com |
London, England | 553 | 2017 | Series A | 669 |
| 28 |  Lawhivelawhive.co.uk |
London, England | 265 | 2021 | Series B | 353 |
| 29 |  Signal AIsignal-ai.com |
London, England | 281 | 2013 | Series D | 335 |
| 30 |  FintechOSfintechos.com |
London, England | 223 | 2017 | Series B | 294 |
| 31 |  OLIXolix.com |
London, England | 146 | 2024 | Series B | 159 |
| 32 |  Unmindunmind.com |
London, England | 218 | 2016 | Debt | 335 |
| 33 |  Tractabletractable.ai |
London, England | 175 | 2014 | Series E | 324 |
| 34 |  Attioattio.com |
London, England | 205 | 2019 | Series B | 293 |
| 35 |  Chip - your wealth appgetchip.uk |
London, England | 253 | 2017 | Crowdfunding | 298 |
| 36 |  Beambeam.org |
London, England | 346 | 2017 | Series A | 463 |
| 37 |  Mimicamimica.ai |
London, England | 303 | 2018 | Series B | 344 |
| 38 |  Automataautomata.tech |
London, England | 170 | 2015 | Series C | 286 |
| 39 |  Relay Technologiesrelaytech.co |
London, England | 289 | 2022 | Series A | 343 |
| 40 |  Napier AInapier.ai |
London, England | 227 | 2015 | Private equity | 324 |
Tem
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How this list is built
Two sources must agree
Crunchbase files 9,383 AI companies under a London head office. We match each one to its LinkedIn page by domain and keep it only if LinkedIn does not contradict the city or the country: 67 were left out because LinkedIn puts the head office in another city, 267 because it names another country, 63 because the names do not match.
Ranked by substance
The order combines team size on LinkedIn, money raised and how many of the company’s people we hold. It is not a popularity score, and nobody pays to be listed. 1,805 companies with fewer than five people were left out, and so were 2 that now belong to an acquirer, so one employer is not counted twice.
Every number has a date
Each company’s LinkedIn page was read within the last 180 days; 514 with an older read were left out rather than shown with stale numbers. This page was built from data read on .
Questions about AI companies in London
What are the largest AI companies in London?
Of the companies on this list, the largest by team size on LinkedIn are Google DeepMind (9,916), Cera (1,328), Multiverse (1,285), Wayve (1,031) and Nscale (989). Among those founded in the last ten years, the largest are Cera, Multiverse, Wayve, Nscale and Synthesia.
What are the top AI startups in London?
Among companies on this list founded in 2020 or later, the largest by team size on LinkedIn are Nscale (989), Vertice (567), Ethos (463), Isomorphic Labs (446), Relay Technologies (289) and Humanoid (286).
Which AI companies are headquartered in London?
The most prominent are Nscale, Wayve, Multiverse, Cera, Google DeepMind, Synthesia, Quantexa, Isomorphic Labs, Flo Health and Rezolve Ai. This page lists the top 40; Crunchbase files 9,383 AI companies with a London head office, and 1,477 of them pass our checks.
How many AI companies are there in London?
Crunchbase files 9,383 companies with a London head office under its Artificial Intelligence category. 1,477 of them pass our checks: a LinkedIn page that agrees on the city and the country, at least five people, and a company profile read in the last 180 days.
Which London AI companies in this list are the newest?
By founding year: Nscale (2024), Humanoid (2024), Ethos (2024), OLIX (2024), Relay Technologies (2022) and Isomorphic Labs (2021).
How is this list ranked?
By a combined score of team size on LinkedIn, total money raised and how many of the company's people we hold. Every list in the directory uses this order. It is not a popularity vote and nobody pays to be on it.
How do I find contacts at these companies?
Generect holds 80,707 people working at these 1,477 companies now. Open the list in Generect to filter them by role, seniority and location and to get verified work emails. This page publishes company data only, no personal contact details.
When was this list last updated?
It was built from data read on 29 Sep 2026. The date at the top of the page changes every time the list is rebuilt.
Which London AI companies build AI infrastructure or hardware?
Nscale builds AI data centers and provides GPU cloud infrastructure for training and running large AI models. OLIX designs optical AI accelerators that use light-based processors for training and inference. Humanoid develops humanoid robots for industrial and commercial use.
Do the team sizes on this page count only staff in London?
No. Team sizes are LinkedIn headcounts and include each company's staff worldwide, not just in London. Together, the top 40 companies have a worldwide LinkedIn headcount of 28,462.