Company lists · Data verified August 2026

Top 25 AI companies based in London, United Kingdom

Name: AI companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 752 companies tracked

The London ai companies list contains 752 companies and 8,612 business contacts, including 2,264 email addresses. Published in August 2026, the list includes companies across the category, with London as the single most-represented city. Use it to identify potential buyers, partners, and vendors in the ai companies market.

AI companies develop, sell, or provide artificial intelligence software, systems, products, or related services. This list covers companies that develop, sell, or provide artificial intelligence software, systems, products, or related services. Ranked by team size, largest first. Data current as of August 28, 2026.

752Companies

8,612Contacts tracked

2,264Verified emails

431Mobile numbers

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The 25 largest AI companies based in London, United Kingdom

Ranked by team size

Top 25 of 752 AI companies based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Quantium	London	1,001-5,000	1,274	687
2	Hyperlink Infosystem	London	1,001-5,000	1,240	131
3	Faculty	London	201-500	565	269
4	Venturedive	London	201-500	399	117
5	Quantco	London	201-500	226	180
6	Tractable	London	201-500	185	68
7	Worktual AI	London	201-500	154	2
8	Kanhasoft	London	51-200	130	15
9	Elsewhen	London	51-200	96	33
10	Samyotech	London	51-200	80	4
11	Rockborne	London	11-50	79	25
12	COGNA	London	51-200	70	46
13	Evident	London	51-200	55	34
14	Turintech AI	London	11-50	53	31
15	Nexaquanta	London	51-200	53	26
16	Synergo Group	London	51-200	53	12
17	Onepoint Consulting	London	51-200	52	32
18	Unidatalab	London	11-50	52	14
19	Conquer AI	London	51-200	51	4
20	Xanda LTD	London	51-200	49	26
21	Celerik INC	London	51-200	46	19
22	Datasparq	London	51-200	40	15
23	digimeta.dev	London	51-200	31	9
24	Brainpool AI	London	11-50	21	9
25	Softblues	London	51-200	19	6

Showing 25 of 752 AI companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,264 reachable decision-makers.

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AI companies based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 752 HQs

431Contacts with mobile numbers

14Emails re-verified in last 30 days

Companies by employee count

1-10

492

11-50

202

51-200

201-500

501-1,000

1,001-5,000

10001+

AI companies by metro in the United Kingdom

Metro	Companies
AI companies in London	752
AI companies in Manchester	42
AI companies in Birmingham	19
AI companies in Glasgow	19
AI companies in Cardiff	18
AI companies in Bristol	15
AI companies in Cambridge	11

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “AI companies”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 14 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many ai companies are in the London list?

The list contains 752 ai companies based in London, United Kingdom.

Which city has the most ai companies on the list?

London is the single most-represented city among the companies on the list.

Does the ai companies list include contact information?

Yes, the list includes 8,612 business contacts and 2,264 email addresses.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.