Company lists · Data verified August 2026

Top 25 AI software companies based in London, United Kingdom

Name: AI software 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 815 companies tracked

There are 815 AI software companies headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 10,950 professional contacts across them, including 2,350 with verified work emails and 551 with mobile numbers. London is the largest hub.

This list covers AI software companies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

815Companies

10,950Contacts tracked

2,350Verified emails

551Mobile numbers

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The 25 largest AI software companies based in London, United Kingdom

Ranked by team size

Top 25 of 815 AI software 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	Mobius Knowledge Services	London	501-1,000	1,434	60
2	Quantium	London	1,001-5,000	1,274	687
3	Venturedive	London	201-500	399	117
4	Quantco	London	201-500	226	180
5	Keepler Data Tech	London	201-500	224	24
6	Worktual AI	London	201-500	154	2
7	Causaly	London	51-200	135	83
8	Kanhasoft	London	51-200	130	15
9	Prospect 33	London	51-200	119	15
10	Speechmatics	London	51-200	113	86
11	Xelpmoc Design And Tech Limited	London	51-200	92	30
12	Predictx	London	51-200	83	47
13	Samyotech	London	51-200	80	4
14	COGNA	London	51-200	70	46
15	Aecor Digital	London	51-200	64	34
16	Seldon	London	51-200	64	19
17	Onepoint Consulting	London	51-200	52	32
18	Conquer AI	London	51-200	51	4
19	Celerik INC	London	51-200	46	19
20	Datasparq	London	51-200	40	15
21	Fogsphere	London	51-200	39	23
22	A-Development	London	51-200	35	1
23	Guildhawk	London	51-200	32	18
24	digimeta.dev	London	51-200	31	9
25	swifter.io	London	51-200	27	8

Showing 25 of 815 AI software companies based in London, United Kingdom

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AI software companies based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 815 HQs

551Contacts with mobile numbers

19Emails re-verified in last 30 days

Companies by employee count

1-10

485

11-50

246

51-200

201-500

501-1,000

1,001-5,000

10001+

AI software companies by metro in the United Kingdom

Metro	Companies
AI software companies in London	815
AI software companies in Manchester	41
AI software companies in Birmingham	21
AI software companies in Bristol	16
AI software companies in Glasgow	16
AI software companies in Cambridge	15
AI software companies in Edinburgh	14

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 software 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; 19 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 software companies are there based in London, United Kingdom?

There are 815 AI software companies headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Mobius Knowledge Services, headquartered in London, tops this list with the largest team on record.

Which city has the most AI software companies?

London leads with 815 headquartered companies, followed by Manchester (41) and Birmingham (21).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,350 verified decision-maker contacts tracked across these 815 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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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.