Company lists · Data verified August 2026

Top 25 AI consulting firms based in the United Kingdom

Name: AI consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,159 companies tracked

There are 1,159 AI consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 20,696 professional contacts across them, including 7,117 with verified work emails and 3,896 with mobile numbers. London is the largest hub.

This list covers AI consulting firms headquartered in the 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.

1,159Companies

20,696Contacts tracked

7,117Verified emails

3,896Mobile numbers

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The 25 largest AI consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,159 AI consulting firms based in the 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	The Hackett Group INC	London	501-1,000	1,499	694
2	Hyperlink Infosystem	London	1,001-5,000	1,240	131
3	Kubrick Group	London	501-1,000	1,003	679
4	Faculty	London	201-500	565	269
5	Venturedive	London	201-500	399	117
6	Innova-Tsn	London	201-500	271	40
7	Vcreatek Consulting	Cardiff	201-500	245	64
8	Keepler Data Tech	London	201-500	224	24
9	Covasant	Reading	201-500	213	43
10	Cloudsmiths	London	51-200	150	8
11	Dufrain	Edinburgh	51-200	118	95
12	Elsewhen	London	51-200	96	33
13	Sullivan & Stanley	n/a	51-200	96	28
14	Colibri Digital	n/a	51-200	91	61
15	Optima Partners	London	51-200	90	52
16	Tecknoworks	London	51-200	79	42
17	Network Science	London	51-200	70	39
18	Altius NOW Avanade	London	201-500	69	5
19	Nexaquanta	London	51-200	53	26
20	Synergo Group	London	51-200	53	12
21	Onepoint Consulting	London	51-200	52	32
22	Aptitude Global	London	51-200	50	36
23	Xanda LTD	London	51-200	49	26
24	Razor LTD	Sheffield	51-200	48	24
25	Celerik INC	London	51-200	46	19

Showing 25 of 1,159 AI consulting firms based in the United Kingdom

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AI consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 648 HQs

3,896Contacts with mobile numbers

43Emails re-verified in last 30 days

Companies by employee count

1-10

854

11-50

213

51-200

201-500

501-1,000

1,001-5,000

10001+

AI consulting firms by metro

Metro	Companies
AI consulting firms in London	648
AI consulting firms in Manchester	38
AI consulting firms in Glasgow	19
AI consulting firms in Birmingham	15
AI consulting firms in Edinburgh	12
AI consulting firms in Bristol	11
AI consulting firms in Reading	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 consulting firms”, with match quality audited by blind human judging, and headquartered in the 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; 43 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 consulting firms are there based in the United Kingdom?

There are 1,159 AI consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

The Hackett Group INC, headquartered in London, tops this list with the largest team on record.

Which city has the most AI consulting firms?

London leads with 648 headquartered companies, followed by Manchester (38) and Glasgow (19).

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 7,117 verified decision-maker contacts tracked across these 1,159 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.