Company lists · Data refreshed September 2026

Top 25 IT business consulting firms based in London, United Kingdom

Name: IT business 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 26, 2026 2,096 companies tracked

RevenueBase identified 2,096 IT business consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 52,583 professional contacts across them, including 16,060 with verified work emails. London is the largest hub.

This list covers IT business 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 26, 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 26, 2026 86% judged on-target in blind review

2,096Companies

52,583Contacts tracked

16,060Verified emails

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The 25 largest IT business consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 2,096 IT business consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to IT business 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	Endava	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	10001+	9,653 contacts →
	Indirect evidence “For over two decades, we have been harnessing technology to drive meaningful change.” Source: RevenueBase Database · checked Sep 26, 2026
2	K2 Partnering Solutions	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	1,001-5,000	1,417 contacts →
	Indirect 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 26, 2026
3	Equal Experts	Indirect evidence	London, United KingdomHQ checked Sep 26, 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 26, 2026
4	NSC Global	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	1,001-5,000	1,039 contacts →
	Indirect evidence “Global business doesn’t have to be complicated.” Source: RevenueBase Database · checked Sep 26, 2026
5	VML Enterprise Solutions	Indirect evidence	London, United KingdomHQ checked Sep 26, 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 26, 2026
6	Zenitech	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	501-1,000	408 contacts →
	Indirect evidence “Zenitech creates technology to transform businesses.” Source: RevenueBase Database · checked Sep 26, 2026
7	Zenzero	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	501-1,000	401 contacts →
	Partial evidence “We believe successful businesses are underpinned by quality IT infrastructure.” Source: RevenueBase Database · checked Sep 26, 2026
8	Hirexa Solutions	Indirect evidence	London, United KingdomHQ checked Sep 26, 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 26, 2026
9	Sandhata Technologies	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	363 contacts →
	Indirect evidence “We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Source: RevenueBase Database · checked Sep 26, 2026
10	Emergn	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	501-1,000	351 contacts →
	Indirect evidence “Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Source: RevenueBase Database · checked Sep 26, 2026
11	Ubique Systems	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	501-1,000	333 contacts →
	Partial evidence “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Source: RevenueBase Database · checked Sep 26, 2026
12	Cartesian	Partial evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	302 contacts →
	Partial evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 26, 2026
13	Elixirr	Partial evidence	London, United KingdomHQ checked Sep 26, 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 26, 2026
14	Percipere	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	245 contacts →
	Indirect evidence “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Source: RevenueBase Database · checked Sep 26, 2026
15	Natilik	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	222 contacts →
	Indirect evidence “Natilik is your technology solutions partner and confident guide to digital transformation, specialising in a range of solutions to help you achieve your goals and drive real…” Source: RevenueBase Database · checked Sep 26, 2026
16	Fusion Global Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	219 contacts →
	Indirect evidence “As a global leader in service management, we help businesses transform their operations with data-driven insights, scalable digital solutions, and measurable results.” Source: RevenueBase Database · checked Sep 26, 2026
17	Cisilion	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	194 contacts →
	Indirect evidence “Combining market-leading tech with world-class service, we go above and beyond expectations to ensure our clients are ready for a digital future.” Source: RevenueBase Database · checked Sep 26, 2026
18	Absolutelabs	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	192 contacts →
	Indirect evidence “AbsoluteLabs is a Salesforce Summit Partner and partner of Microsoft Azure, Amazon Web Services, and Google Cloud Platform.” Source: RevenueBase Database · checked Sep 26, 2026
19	Azurian	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	201-500	178 contacts →
	Indirect evidence “The future has never moved this fast.” Source: RevenueBase Database · checked Sep 26, 2026
20	BIP UK	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	5,001-10,000	167 contacts →
	Indirect evidence “BIP is the international consultancy for the 21st century with over 6,500 consultants globally daring to make a difference.” Source: RevenueBase Database · checked Sep 26, 2026
21	CVL	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	n/a	165 contacts →
	Indirect evidence “Strategic development for already dynamic businesses, successful mergers & acquisitions between household names, technology planning in cutting edge industries and real-world…” Source: RevenueBase Database · checked Sep 26, 2026
22	Interex Group	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	160 contacts →
	Indirect evidence “InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.” Source: RevenueBase Database · checked Sep 26, 2026
23	Dogma Group	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	149 contacts →
	Indirect evidence “The Dogma Group is a progressive digital transformation company committed to delivering the digital imperative and becoming the most trusted advisor to its clientele.” Source: RevenueBase Database · checked Sep 26, 2026
24	Daemon	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	51-200	145 contacts →
	Indirect evidence “Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Source: RevenueBase Database · checked Sep 26, 2026
25	ORG	Indirect evidence	London, United KingdomHQ checked Sep 26, 2026	1,001-5,000	139 contacts →
	Indirect evidence “We believe that change is an opportunity to thrive.” Source: RevenueBase Database · checked Sep 26, 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: IT business 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 IT business consulting firms.
Partial evidence: Its own public description names part of IT business consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT business 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 25 of 2,096 IT business consulting firms based in London, United Kingdom

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IT business consulting firms based in London, United Kingdom at a glance

As of Sep 26, 2026

30.5%Verified-email coverage

25.1Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

1,256

11-50

539

51-200

202

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 2,096 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 IT business 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 “IT business 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 IT business 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 IT business 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, 16,060 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 26, 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.

IT business consulting firms by metro in the United Kingdom

IT business consulting firms in London2096
IT business consulting firms in Manchester123
IT business consulting firms in Birmingham94
IT business consulting firms in Bristol70
IT business consulting firms in Reading67
IT business consulting firms in Leeds61
IT business consulting firms in Glasgow54
IT business consulting firms in Edinburgh52
IT business consulting firms in Milton Keynes50
IT business consulting firms in Sheffield45
IT business consulting firms in Coventry31
IT business consulting firms in Cambridge30
IT business consulting firms in Oxford29
IT business consulting firms in Harrow27
IT business consulting firms in Leicester27
IT business consulting firms in Nottingham27
IT business consulting firms in Cardiff26
IT business 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 IT business 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 IT business consulting firms are there based in London, United Kingdom?

RevenueBase identified 2,096 IT business 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?

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

Which city has the most IT business consulting firms?

London leads with 2096 headquartered companies, followed by Manchester (123) and Birmingham (94).

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 16,060 verified decision-maker contacts tracked across these 2,096 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 26, 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.