Company lists · Data refreshed November 2026

Top 11 IT data companies based in the United Kingdom

RevenueBase identified 7,297 company matches for IT data companies associated with the United Kingdom as of November 2026 and tracks 369,256 professional contacts across them, including 93,857 with verified work emails. London is the largest hub.

This list covers company matches for IT data 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
7,297Companies
369,256Contacts tracked
93,857Verified emails
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The 11 largest IT data companies based in the United Kingdom

Ranked by team size
Top 11 of 7,297 company matches for IT data 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0004,123 contacts →

Exact match

“Accenture helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed for organisations across industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNewbury, United KingdomHQ recorded Nov 6, 202610001+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
3Exact matchMarlow, United KingdomHQ recorded Nov 6, 20261,001-5,0003,073 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
4Exact matchBirmingham, United KingdomHQ recorded Nov 6, 20261,001-5,0002,293 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
5Exact matchCity Of London, United KingdomHQ recorded Nov 6, 20265,001-10,0002,110 contacts →

Exact match

“We are a specialist professional services and technology firm, working in partnership with leading insurance, highly regulated and global businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,903 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
7Exact matchAbingdon, United KingdomHQ recorded Nov 6, 2026501-1,0001,503 contacts →

Exact match

“PMC combines consulting with expert software engineering and 24x7x365 managed services to deliver high-quality technology services and solutions across retail, D2C, and broader…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,091 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
9Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,046 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
10Exact matchLeicester, United KingdomHQ recorded Nov 6, 20261,001-5,000960 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
11Exact matchNewry, United KingdomHQ recorded Nov 6, 20261,001-5,000936 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 11 of 7,297 IT data companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 93,857 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT data companies based in the United Kingdom at a glance

As of Nov 6, 2026
25.4%Verified-email coverage
50.6Average contacts per company
1-10Median size (employees)
36.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
4,190
11-50
1,986
51-200
647
201-500
178
501-1,000
62
1,001-5,000
60
5,001-10,000
15
10001+
27

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 7,297 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 data 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 93,857 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.

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 data companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 7,297 company matches for IT data 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?

Accenture UK & Ireland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT data companies?

London leads with 2685 company records, followed by Manchester (188) and Birmingham (133).

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 93,857 professional contacts with verified work emails tracked across these 7,297 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.