Company lists · Data refreshed November 2026

Top 11 IT services consultancies based in the United Kingdom

Name: IT services consultancies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 8,801 companies tracked

RevenueBase identified 8,801 company matches for IT services consultancies associated with the United Kingdom as of November 2026 and tracks 276,987 professional contacts across them, including 61,318 with verified work emails. London is the largest hub.

This list covers company matches for IT services consultancies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

8,801Companies

276,987Contacts tracked

61,318Verified emails

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The 11 largest IT services consultancies based in the United Kingdom

Ranked by team size

Top 11 of 8,801 company matches for IT services consultancies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	NSC Global	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,091 contacts →
	Exact match “Global business doesn’t have to be complicated.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Advania UK	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,046 contacts →
	Exact match “We empower people to create sustainable value with the clever use of technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Mindera	Exact match	Leicester, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	960 contacts →
	Exact match “Mindera is a global consulting and engineering company with 1100+ people, delivering technology solutions across 9 locations, from Brazil to Australia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Nasstar	Exact match	Wakefield, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	840 contacts →
	Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	TSG	Exact match	Gateshead, United KingdomHQ recorded Nov 6, 2026	201-500	811 contacts →
	Exact match “TSG: The Technology Partner for Ambitious Businesses We're not a reseller.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	KERV	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	802 contacts →
	Exact match “Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Huxley	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	754 contacts →
	Exact match “Shaping the future of finance Huxley is an IT specialist, part of SThree, the global STEM workforce consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	XMA	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	501-1,000	629 contacts →
	Exact match “Unlock your potential with XMA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Alten LTD - UK	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	528 contacts →
	Exact match “We are a leading Engineering and IT consultancy operating across all sectors in 30 different countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	FSP	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	201-500	459 contacts →
	Exact match “FSP is a leading consultancy specialising in Data and AI, Cyber Security, Enterprise Cloud and Change Delivery, providing advisory led enterprise transformation delivered through…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Hirexa Solutions	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	386 contacts →
	Exact match “Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT services consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 11 of 8,801 IT services consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 61,318 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT services consultancies based in the United Kingdom at a glance

As of Nov 6, 2026

22.1%Verified-email coverage

31.5Average contacts per company

1-10Median size (employees)

31.2%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,710

11-50

2,146

51-200

533

201-500

146

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 8,801 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “IT services consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 61,318 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT services consultancies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT services consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services consultancies are there based in the United Kingdom?

RevenueBase identified 8,801 company matches for IT services consultancies associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

NSC Global tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT services consultancies?

London leads with 2749 company records, followed by Manchester (197) and Birmingham (131).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 61,318 professional contacts with verified work emails tracked across these 8,801 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.