Company lists · Data refreshed November 2026

Top 16 IT technology companies based in the United Kingdom

Name: IT technology companies 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 8,285 companies tracked

RevenueBase identified 8,285 company matches for IT technology companies associated with the United Kingdom as of November 2026 and tracks 283,433 professional contacts across them, including 68,475 with verified work emails. London is the largest hub.

This list covers company matches for IT technology companies 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

8,285Companies

283,433Contacts tracked

68,475Verified emails

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The 16 largest IT technology companies based in the United Kingdom

Ranked by team size

Top 16 of 8,285 company matches for IT technology companies 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	Micro Focus	Exact match	Newbury, United KingdomHQ recorded Nov 6, 2026	10001+	3,134 contacts →
	Exact match “OpenText has completed the purchase of Micro Focus.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Softcat	Exact match	Marlow, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,073 contacts →
	Exact match “Softcat is a leading provider of IT infrastructure to corporate and public sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Oneadvanced	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	2,293 contacts →
	Exact match “OneAdvanced is a leading provider of sovereign AI-powered sector-focused SaaS software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Caci LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,903 contacts →
	Exact match “From our headquarters in London, CACI empowers organisations to make bold, strategic decisions through the intelligent use of data and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Noventiq	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	1,532 contacts →
	Exact match “Noventiq (Noventiq Holdings PLC) is a leading global solutions and services provider in digital transformation and cybersecurity, headquartered in London.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	CDW UK	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,291 contacts →
	Exact match “We offer a full-stack, full-lifecycle approach to technology, leveraging our extensive solutions, services and brand relationships to meet your organization’s unique needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	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
9	Genisys Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	852 contacts →
	Exact match “Genisys Group is a new age global information technology and business process services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	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
11	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
12	MTI	Exact match	Staines-upon-thames, United KingdomHQ recorded Nov 6, 2026	201-500	811 contacts →
	Exact match “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Bytes Software Services	Exact match	Leatherhead, United KingdomHQ recorded Nov 6, 2026	501-1,000	804 contacts →
	Exact match “Bytes is a leading provider of world-class IT solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	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
15	Fds, A DXC Technology Company	Exact match	Aldershot, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	738 contacts →
	Exact match “FDS is the Enabler of DXC Delivery, leading on delivering outstanding IT support over a vast range of services to DXC’s customers in 9 European countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Exponential-E	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	681 contacts →
	Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” 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 technology companies”. 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 16 of 8,285 IT technology companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 68,475 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT technology companies based in the United Kingdom at a glance

As of Nov 6, 2026

24.2%Verified-email coverage

34.2Average contacts per company

1-10Median size (employees)

29.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,881

11-50

2,272

51-200

624

201-500

173

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 8,285 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 technology companies” 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 68,475 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 technology companies 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 technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT technology companies are there based in the United Kingdom?

RevenueBase identified 8,285 company matches for IT technology companies 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?

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

Which city has the most IT technology companies?

London leads with 2440 company records, followed by Manchester (188) and Birmingham (159).

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 68,475 professional contacts with verified work emails tracked across these 8,285 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.