Company lists · Data refreshed September 2026

Top 23 Agentic AI consulting firms based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 2,542 companies tracked

RevenueBase identified 2,542 agentic AI consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 55,672 professional contacts across them, including 17,655 with verified work emails. London is the largest hub.

This list covers agentic AI consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

2,542Companies

55,672Contacts tracked

17,655Verified emails

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The 23 largest agentic AI consulting firms based in London, United Kingdom

Ranked by team size

Top 23 of 2,542 agentic AI consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to agentic AI consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Photon	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	5,001-10,000	5,203 contacts →
	Partial evidence “Photon, a global leader in AI and digital solutions, helps clients accelerate AI adoption and embrace DigitalHyper-expansion® to ‘make tomorrow happen today’.” Source: RevenueBase Database · checked Sep 23, 2026
2	Ciklum	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	2,965 contacts →
	Indirect evidence “Ciklum is a global Experience Engineering firm that stands at the forefront of innovation, blending next-generation product engineering, exceptional customer experiences, and…” Source: RevenueBase Database · checked Sep 23, 2026
3	Computer Futures	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	501-1,000	2,673 contacts →
	Indirect evidence “Building tomorrow’s tech landscape together Computer Futures is a Technology specialist, part of SThree, the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 23, 2026
4	Avance Consulting	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	501-1,000	1,927 contacts →
	Partial evidence “Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…” Source: RevenueBase Database · checked Sep 23, 2026
5	K2 Partnering Solutions	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	1,417 contacts →
	Partial evidence “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Source: RevenueBase Database · checked Sep 23, 2026
6	Efficio	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	1,304 contacts →
	Indirect evidence “Efficio is a global leader in procurement and supply chain management and transformation.” Source: RevenueBase Database · checked Sep 23, 2026
7	Equal Experts	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	1,172 contacts →
	Indirect evidence “We are honoured to be recognised as one of the Top 10 Best Places to Work in the UK for the third year running, according to Glassdoor’s prestigious 2026 list.” Source: RevenueBase Database · checked Sep 23, 2026
8	Kubrick Group	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	501-1,000	1,010 contacts →
	Partial evidence “We deliver powerful data and AI solutions that minimize operational cost, strengthen resilience against risk, and uncover revenue opportunity.” Source: RevenueBase Database · checked Sep 23, 2026
9	VML Enterprise Solutions	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	5,001-10,000	697 contacts →
	Indirect evidence “Follow us now at WPP Enterprise Solutions, WPP’s global business transformation unit, designing, building and operating the growth systems that competitive businesses rely on.” Source: RevenueBase Database · checked Sep 23, 2026
10	Faculty	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	564 contacts →
	Partial evidence “Founded in 2014, Faculty is one of Europe’s leading applied AI companies.” Source: RevenueBase Database · checked Sep 23, 2026
11	Instadeep	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	447 contacts →
	Partial evidence “InstaDeep is a pioneer in decision-making AI, driven by the belief that AI can help everyone.” Source: RevenueBase Database · checked Sep 23, 2026
12	Systango	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	413 contacts →
	Partial evidence “Systango is an AI-native digital engineering company.” Source: RevenueBase Database · checked Sep 23, 2026
13	KIN Carta	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	5,001-10,000	400 contacts →
	Indirect evidence “Kin + Carta was acquired by Valtech in 2024.” Source: RevenueBase Database · checked Sep 23, 2026
14	Hirexa Solutions	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	377 contacts →
	Indirect evidence “Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Source: RevenueBase Database · checked Sep 23, 2026
15	Softwire	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	360 contacts →
	Indirect evidence “Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Source: RevenueBase Database · checked Sep 23, 2026
16	Momenta	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	313 contacts →
	Indirect evidence “With over 30 years of experience servicing blue-chip clients, Momenta Group is renowned for our expertise and quality-driven approach.” Source: RevenueBase Database · checked Sep 23, 2026
17	Solirius Reply	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	305 contacts →
	Indirect evidence “We are digital transformation specialists, on a mission to make our society an easier and more equitable place for people to live, work and thrive.” Source: RevenueBase Database · checked Sep 23, 2026
18	Digital Futures	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	295 contacts →
	Partial evidence “Digital Futures is an AI services and platform company that helps industry and government build enterprise AI capability at scale.” Source: RevenueBase Database · checked Sep 23, 2026
19	Datatonic	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	284 contacts →
	Partial evidence “The leading cloud data + AI consultancy, driving business impact for the world's most ambitious businesses, through cutting-edge cloud technologies.” Source: RevenueBase Database · checked Sep 23, 2026
20	Contractpodai	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	280 contacts →
	Strong evidence “ContractPodAi is a global leader in Agentic AI and the pioneer behind the Leah Agentic OS that enables enterprises to build, orchestrate, and govern intelligent agents across…” Source: RevenueBase Database · checked Sep 23, 2026
21	Elixirr	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	501-1,000	275 contacts →
	Partial evidence “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Source: RevenueBase Database · checked Sep 23, 2026
22	Armakuni	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	264 contacts →
	Indirect evidence “Armakuni is a cloud-native technology consultancy and AWS Premier Partner, trusted by enterprises across industries to accelerate their digital transformation journeys.” Source: RevenueBase Database · checked Sep 23, 2026
23	Transform	Partial evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	255 contacts →
	Partial evidence “Transform is a fresh alternative to Big Consulting.” Source: RevenueBase Database · checked Sep 23, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: agentic AI consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names agentic AI consulting firms.
Partial evidence: Its own public description names part of agentic AI consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name agentic AI consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 2,542 agentic AI consulting firms based in London, United Kingdom

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Agentic AI consulting firms based in London, United Kingdom at a glance

As of Sep 23, 2026

31.7%Verified-email coverage

21.9Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

1,653

11-50

613

51-200

186

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 2,542 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among agentic AI consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “agentic AI consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names agentic AI consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among agentic AI consulting firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 17,655 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 23, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Agentic AI consulting firms by metro in the United Kingdom

Agentic AI consulting firms in London2542
Agentic AI consulting firms in Manchester132
Agentic AI consulting firms in Birmingham74
Agentic AI consulting firms in Bristol57
Agentic AI consulting firms in Edinburgh55
Agentic AI consulting firms in Leeds55
Agentic AI consulting firms in Glasgow45
Agentic AI consulting firms in Cambridge33
Agentic AI consulting firms in Milton Keynes32
Agentic AI consulting firms in Cardiff31
Agentic AI consulting firms in Oxford30
Agentic AI consulting firms in Reading30
Agentic AI consulting firms in Liverpool26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names agentic AI consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many agentic AI consulting firms are there based in London, United Kingdom?

RevenueBase identified 2,542 agentic AI consulting firms headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Photon, headquartered in London, tops this list with the largest team on record.

Which city has the most agentic AI consulting firms?

London leads with 2542 headquartered companies, followed by Manchester (132) and Birmingham (74).

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 17,655 verified decision-maker contacts tracked across these 2,542 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.