Company lists · Data refreshed September 2026

Top 25 Enterprise IT consulting firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 5,964 companies tracked

RevenueBase identified 5,964 enterprise IT consulting firms headquartered in the United Kingdom as of September 2026 and tracks 267,261 professional contacts across them, including 60,357 with verified work emails and 18,388 with mobile numbers. London is the largest hub.

This list covers enterprise IT 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

5,964Companies

267,261Contacts tracked

60,357Verified emails

18,388Mobile numbers

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The 25 largest enterprise IT consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 5,964 enterprise IT consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise IT 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	Tech Mahindra	Strong evidence	Milton Keynes, United Kingdom	10001+	138,625 contacts →
	Strong evidence “Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.” Source: RevenueBase Database · checked Sep 2, 2026
2	Sopra Steria	Partial evidence	Edinburgh, United Kingdom	10001+	37,387 contacts →
	Partial evidence “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Source: RevenueBase Database · checked Sep 2, 2026
3	NRI Group	Indirect evidence	London, United Kingdom	10001+	2,871 contacts →
	Indirect evidence “We align our goals with our clients’ goals – a true partnership that ensures shared success.” Source: RevenueBase Database · checked Sep 2, 2026
4	Gspann Technologies, INC	Strong evidence	London, United Kingdom	1,001-5,000	1,874 contacts →
	Strong evidence “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Source: RevenueBase Database · checked Sep 2, 2026
5	PMC	Partial evidence	Abingdon, United Kingdom	501-1,000	1,429 contacts →
	Partial evidence “PMC combines consulting with expert software engineering and 24x7x365 managed services to deliver high-quality technology services and solutions across retail, D2C, and broader…” Source: RevenueBase Database · checked Sep 2, 2026
6	First Derivative	Indirect evidence	Newry, United Kingdom	1,001-5,000	1,022 contacts →
	Indirect evidence “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Source: RevenueBase Database · checked Sep 2, 2026
7	Miratech	Indirect evidence	London, United Kingdom	1,001-5,000	982 contacts →
	Indirect evidence “Miratech helps visionaries to change the world.” Source: RevenueBase Database · checked Sep 2, 2026
8	Cerecore	Strong evidence	London, United Kingdom	501-1,000	757 contacts →
	Strong evidence “CereCore® provides EHR consulting and implementation services, IT and application support, clinical service desk, IT managed services, technical staffing, strategic IT consulting…” Source: RevenueBase Database · checked Sep 2, 2026
9	Ahana Systems And Solutions Pvt. LTD	Indirect evidence	London, United Kingdom	501-1,000	645 contacts →
	Indirect evidence “Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.” Source: RevenueBase Database · checked Sep 2, 2026
10	XMA	Indirect evidence	Nottingham, United Kingdom	501-1,000	585 contacts →
	Indirect evidence “Unlock your potential with XMA.” Source: RevenueBase Database · checked Sep 2, 2026
11	Impressico Business Solutions	Partial evidence	London, United Kingdom	501-1,000	523 contacts →
	Partial evidence “Impressico Business Solutions, a CMMi Level 5 company is an IT services, digital solutions and outsourcing organization that delivers customized solutions to global businesses…” Source: RevenueBase Database · checked Sep 2, 2026
12	Dynatech Systems	Strong evidence	Leeds, United Kingdom	501-1,000	478 contacts →
	Strong evidence “DynaTech is an AI-first IT consulting and Microsoft AI Cloud partner in the USA (United States), empowering organizations to reimagine how they operate, scale, & compete in a…” Source: RevenueBase Database · checked Sep 2, 2026
13	Leader Investment Group - LIG	Partial evidence	London, United Kingdom	501-1,000	452 contacts →
	Partial evidence “Leader Investment Group is a MNC & a worldwide pioneer in Management Consultation, Executive Consultation, Digital Transformation & IT.” Source: RevenueBase Database · checked Sep 2, 2026
14	Trustmarque	Indirect evidence	York, United Kingdom	501-1,000	422 contacts →
	Indirect evidence “Trustmarque delivers the value of technology to bring real-life impact.” Source: RevenueBase Database · checked Sep 2, 2026
15	ACORA	Indirect evidence	Tufton Warren, United Kingdom	501-1,000	421 contacts →
	Indirect evidence “We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Source: RevenueBase Database · checked Sep 2, 2026
16	Zenzero	Partial evidence	Coventry, United Kingdom	501-1,000	403 contacts →
	Partial evidence “We believe successful businesses are underpinned by quality IT infrastructure.” Source: RevenueBase Database · checked Sep 2, 2026
17	Seargin	Indirect evidence	London, United Kingdom	501-1,000	275 contacts →
	Indirect evidence “Seargin was founded to close the gap between traditional advisory and hands-on delivery - combining strategic insight with deep expertise in ERP, AI and data.” Source: RevenueBase Database · checked Sep 2, 2026
18	V R Della Infotech Inc- V R Della Group	Strong evidence	London, United Kingdom	501-1,000	253 contacts →
	Strong evidence “Della is a IT consulting and staffing firm focused on both IT and non IT needs of our customers.” Source: RevenueBase Database · checked Sep 2, 2026
19	Proact IT Group AB	Partial evidence	Leeds, United Kingdom	1,001-5,000	224 contacts →
	Partial evidence “Proact is a leading IT expert helping customers secure business critical data via best in class hybrid cloud solutions.” Source: RevenueBase Database · checked Sep 2, 2026
20	Capita IT Professional Services	Partial evidence	Haywards Heath, United Kingdom	10001+	209 contacts →
	Partial evidence “Our IT professional services deliver expertise in effective business change, facilitated by technology.” Source: RevenueBase Database · checked Sep 2, 2026
21	Ibridge, LLC	Indirect evidence	London, United Kingdom	501-1,000	183 contacts →
	Indirect evidence “For over 16 years, iBridge has helped many organizations in the legal, healthcare, manufacturing, utilities, financial, and education industries apply the latest technologies to…” Source: RevenueBase Database · checked Sep 2, 2026
22	Esquare	Partial evidence	Birmingham, United Kingdom	501-1,000	133 contacts →
	Partial evidence “Esquare Info Solutions \| Enterprise Portal & Digital Transformation Experts Innovate.” Source: RevenueBase Database · checked Sep 2, 2026
23	C Ahead Digital	Partial evidence	London, United Kingdom	1,001-5,000	122 contacts →
	Partial evidence “C Ahead Technologies is an innovative brainchild of its founders created to provide IT Services, Digital Technologies, Strategic Ai Workforce, and Outsourcing in an effective…” Source: RevenueBase Database · checked Sep 2, 2026
24	Baseel Partners	Strong evidence	London, United Kingdom	1,001-5,000	78 contacts →
	Strong evidence “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Source: RevenueBase Database · checked Sep 2, 2026
25	Andersen People	Partial evidence	London, United Kingdom	1,001-5,000	50 contacts →
	Partial evidence “Andersen is a European IT company with headquarter in Warsaw, Poland.” Source: RevenueBase Database · checked Sep 2, 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: enterprise IT 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 enterprise IT consulting firms.
Partial evidence: Its own public description names part of enterprise IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise IT 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 5,964 enterprise IT consulting firms based in the United Kingdom

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Enterprise IT consulting firms based in the United Kingdom at a glance

As of Sep 2, 2026

22.6%Verified-email coverage

6.9%Mobile-number coverage

44.8Average contacts per company

1-10Median size (employees)

36.2%Largest-city concentration · London

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

3,809

11-50

1,398

51-200

447

201-500

501-1,000

1,001-5,000

10001+

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 enterprise IT 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 the United Kingdom whose own description of what they do matches “enterprise IT 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 enterprise IT 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 enterprise IT consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom 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, 60,357 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 2, 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.

Enterprise IT consulting firms by metro

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 enterprise IT 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 enterprise IT consulting firms are there based in the United Kingdom?

RevenueBase identified 5,964 enterprise IT consulting firms headquartered in the 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?

Tech Mahindra, headquartered in Milton Keynes, tops this list with the largest team on record.

Which city has the most enterprise IT consulting firms?

London leads with 2160 headquartered companies, followed by Manchester (142) and Birmingham (89).

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 60,357 verified decision-maker contacts tracked across these 5,964 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 2, 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.