Company lists · Data refreshed November 2026

Top 24 Secure infrastructure providers based in the United Kingdom

RevenueBase identified 1,534 company matches for secure infrastructure providers associated with the United Kingdom as of November 2026 and tracks 41,895 professional contacts across them, including 16,697 with verified work emails. London is the largest hub.

This list covers company matches for secure infrastructure providers 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
1,534Companies
41,895Contacts tracked
16,697Verified emails
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The 24 largest secure infrastructure providers based in the United Kingdom

Ranked by team size
Top 24 of 1,534 company matches for secure infrastructure providers 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 matchAbingdon, United KingdomHQ recorded Nov 6, 20265,001-10,0005,283 contacts →

Exact match

“Sophos, a global cybersecurity leader, defends more than organizations worldwide with Sophos Fusion, the industry's first and most complete AI-native cybersecurity defense system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMaidenhead, United KingdomHQ recorded Nov 6, 20265,001-10,0001,466 contacts →

Exact match

“We are Architects of Change™.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWakefield, United KingdomHQ recorded Nov 6, 20261,001-5,000840 contacts →

Exact match

“Complexity isn’t the enemy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchStaines-upon-thames, United KingdomHQ recorded Nov 6, 2026201-500811 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
5Exact matchLeatherhead, United KingdomHQ recorded Nov 6, 2026501-1,000804 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
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000681 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
7Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026501-1,000681 contacts →

Exact match

“Systal is a global managed network, cloud and security transformation specialist.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchReading, United KingdomHQ recorded Nov 6, 2026501-1,000629 contacts →

Exact match

“Unlock your potential with XMA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchFleet, United KingdomHQ recorded Nov 6, 20261,001-5,000613 contacts →

Exact match

“Dimension Data uses the power of technology to help organisations achieve great things.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000553 contacts →

Exact match

“We are accelerating the roll-out of technology through Cybersecurity, Cloud, IoT, Data & Artificial Intelligence Follow on our social media channels: • X: https://x.com/TefTech_EN…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBurgess Hill, United KingdomHQ recorded Nov 6, 2026501-1,000468 contacts →

Exact match

“We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCirencester, United KingdomHQ recorded Nov 6, 20261,001-5,000449 contacts →

Exact match

“Unlike traditional security providers, we're redefining what protection means in today's world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026201-500424 contacts →

Exact match

“Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHemel Hempstead, United KingdomHQ recorded Nov 6, 2026201-500397 contacts →

Exact match

“boxxe is a leading provider of hardware, software, and managed IT services for public and private sector organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAlderley Edge, United KingdomHQ recorded Nov 6, 2026201-500352 contacts →

Exact match

“We're one of the UK’s leading Voice, Connect, Cloud and Digital solution providers, helping over businesses grow through the use of innovative technology and expert advice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchReading, United KingdomHQ recorded Nov 6, 2026201-500327 contacts →

Exact match

“Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGateshead, United KingdomHQ recorded Nov 6, 2026201-500316 contacts →

Exact match

“Welcome to Aspire Technology Solutions!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500313 contacts →

Exact match

“At Kocho, we believe greatness lies in everyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCamberley, United KingdomHQ recorded Nov 6, 2026201-500304 contacts →

Exact match

“North builds stronger, more reliable networks and creates smarter, more sustainable places.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchYork, United KingdomHQ recorded Nov 6, 2026501-1,000297 contacts →

Exact match

“Trustmarque delivers the value of technology to bring real-life impact.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLiverpool, United KingdomHQ recorded Nov 6, 2026201-500276 contacts →

Exact match

“ARO is an award-winning IT Services and Solutions provider with almost 30 years of expertise in Cloud, Cyber Security, IT Collaboration, Data Centre Services, and Sustainability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 2026201-500276 contacts →

Exact match

“At Quorum Cyber, we're on a mission to help good people win.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLeeds, United KingdomHQ recorded Nov 6, 2026201-500257 contacts →

Exact match

“We are a global boutique, specializing exclusively in the convergence of identity-driven security and networking.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchGreenham, United KingdomHQ recorded Nov 6, 2026201-500256 contacts →

Exact match

“Roc Technologies delivers transformational IT solutions to public and private sector organisations across the UK.”

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

Showing 24 of 1,534 secure infrastructure providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 16,697 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Secure infrastructure providers based in the United Kingdom at a glance

As of Nov 6, 2026
39.9%Verified-email coverage
27.3Average contacts per company
11-50Median size (employees)
30.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
720
11-50
530
51-200
165
201-500
52
501-1,000
17
1,001-5,000
24
5,001-10,000
2
10001+
4

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 1,534 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 “secure infrastructure providers” 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 16,697 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 “secure infrastructure providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many secure infrastructure providers are there based in the United Kingdom?

RevenueBase identified 1,534 company matches for secure infrastructure providers 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?

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

Which city has the most secure infrastructure providers?

London leads with 469 company records, followed by Manchester (46) and Birmingham (26).

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 16,697 professional contacts with verified work emails tracked across these 1,534 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.