Company lists · Data refreshed August 2026

Top 25 IT consulting companies based in the United Kingdom

As of August 2026, this directory lists 6,853 IT consulting companies based in the United Kingdom, with 357,396 contacts and 83,933 email addresses. London is the single most-represented city among the companies on the list. Use the directory to identify potential vendors, partners, and sales prospects.

IT consulting companies advise organizations on technology strategy, systems, software, infrastructure, cybersecurity, cloud services, and related IT implementation needs. This list covers companies that provide professional IT consulting services, including technology advisory, systems planning, implementation support, and related services. Ranked by team size, largest first. Data current as of August 29, 2026.

6,853Companies
357,396Contacts tracked
83,933Verified emails
24,653Mobile numbers
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The 25 largest IT consulting companies based in the United Kingdom

Ranked by team size
Top 25 of 6,853 IT consulting companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Aug 29, 2026. Evidence rates how directly each company's own description names IT consulting companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
Tech MahindraPartial evidence

“Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.”

Source: company website · checked Aug 29, 2026
Milton Keynes, United Kingdom10001+138,62521,414
2
MphasisIndirect evidence

“At Mphasis, engineering has been in our DNA since inception.”

Source: company website · checked Aug 29, 2026
London, United Kingdom10001+43,7406,968
3
Sopra SteriaPartial 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: company website · checked Aug 29, 2026
Edinburgh, United Kingdom10001+37,38716,784
4
ITC InfotechIndirect evidence

“ITC Infotech is a global technology solution and services leader providing business-friendly solutions, that enable future-readiness for clients.”

Source: company website · checked Aug 29, 2026
London, United Kingdom10001+16,8964,111
5
EnsonoIndirect evidence

“Ensono is an expert technology adviser and managed service provider.”

Source: company website · checked Aug 29, 2026
Staines-Upon-Thames, United Kingdom1,001-5,0003,2461,963
6
SoftcatPartial evidence

“Softcat is a leading provider of IT infrastructure to corporate and public sectors.”

Source: company website · checked Aug 29, 2026
Whiteley, United Kingdom1,001-5,0002,873928
7
NRI GroupIndirect evidence

“We align our goals with our clients’ goals – a true partnership that ensures shared success.”

Source: company website · checked Aug 29, 2026
London, United Kingdom10001+2,87136
8
Gspann Technologies, INCPartial evidence

“GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,0001,874754
9
Sword GroupPartial evidence

“Sword is a leader in data insights, digital transformation and technology services with a substantial reputation in complex IT, business projects and mission critical operations…”

Source: company website · checked Aug 29, 2026
Aberdeen, United Kingdom1,001-5,0001,747982
10
Zühlke GroupIndirect evidence

“Zühlke is a global transformation partner, with engineering and innovation in our DNA.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,0001,580909
11

“Radical Minds group leverages its highly qualified and experienced professionals at its offshore, near-shore and onshore locations to address our clients present challenges and…”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,0001,5574
12
BBDIndirect evidence

“Welcome to BBD – where experience, innovation and software engineering excellence come together.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,0001,220485
13
Puresoftware LTDIndirect evidence

“PureSoftware, a wholly owned subsidiary of Happiest Minds, is a global software products and digital services company.”

Source: company website · checked Aug 29, 2026
Court, United Kingdom1,001-5,0001,186514
14
BJSSIndirect evidence

“BJSS is an award-winning technology and engineering consultancy for business.”

Source: company website · checked Aug 29, 2026
Nottingham, United Kingdom1,001-5,0001,076660
15
First DerivativeIndirect evidence

“First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.”

Source: company website · checked Aug 29, 2026
Newry, United Kingdom1,001-5,0001,022525
16
MiratechIndirect evidence

“Miratech helps visionaries to change the world.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,000982352
17
VisagioIndirect evidence

“A Visagio Group company.”

Source: company website · checked Aug 29, 2026
Reading, United Kingdom501-1,000976439
18
MinderaPartial evidence

“Mindera is a global consulting and engineering company with 1100+ people, delivering technology solutions across 9 locations, from Brazil to Australia.”

Source: company website · checked Aug 29, 2026
Leicester, United Kingdom1,001-5,000942563
19
Advania UKIndirect evidence

“We empower people to create sustainable value with the clever use of technology.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,0009055
20
NasstarIndirect evidence

“Complexity isn’t the enemy.”

Source: company website · checked Aug 29, 2026
Wakefield, United Kingdom1,001-5,000841381
21
Bytes Software ServicesPartial evidence

“Bytes is a leading provider of world-class IT solutions.”

Source: company website · checked Aug 29, 2026
Portsmouth, United Kingdom501-1,000784523
22
Systems PlusIndirect evidence

“Systems Plus is a leading technology solutions provider driven by the integrated blend of People, Process, and Technology.”

Source: company website · checked Aug 29, 2026
Reading, United Kingdom501-1,00073579
23

“Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.”

Source: company website · checked Aug 29, 2026
London, United Kingdom501-1,000645183
24
Node4Indirect evidence

“Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.”

Source: company website · checked Aug 29, 2026
London, United Kingdom1,001-5,000624480
25
XMAIndirect evidence

“Unlock your potential with XMA.”

Source: company website · checked Aug 29, 2026
Nottingham, United Kingdom501-1,000585308

Showing 25 of 6,853 IT consulting companies based in the United Kingdom

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IT consulting companies based in the United Kingdom at a glance

As of Aug 29, 2026
1-10Median size (employees)
LondonLargest hub · 2456 HQs
24,653Contacts with mobile numbers
Aug 29, 2026Data refreshed

Companies by employee count

1-10
4,314
11-50
1,629
51-200
525
201-500
130
501-1,000
36
1,001-5,000
43
10001+
16

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 consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “IT consulting companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among IT consulting companies, 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 an evidence rating so you can judge each match yourself.
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, 83,933 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 August 29, 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.

Frequently asked

How many IT consulting companies are in the directory?

The directory contains 6,853 IT consulting companies based in the United Kingdom as of August 2026.

How can I find contacts at IT consulting companies?

You can use this directory to review 357,396 contacts and 83,933 email addresses associated with IT consulting companies based in the United Kingdom.

Which city has the most IT consulting companies on the list?

London is the single most-represented city among the IT consulting companies on the list.

Ready to reach these companies? Verified emails and direct dials for all 6,853 IT consulting companies based in the United Kingdom. Start with a free account, no credit card.

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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.