Company lists · Data refreshed November 2026

Top 24 Managed IT service providers based in the United Kingdom

RevenueBase identified 3,516 company matches for managed IT service providers associated with the United Kingdom as of November 2026 and tracks 44,875 professional contacts across them, including 18,938 with verified work emails. London is the largest hub.

This list covers company matches for managed IT service 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
3,516Companies
44,875Contacts tracked
18,938Verified emails
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The 24 largest managed IT service providers based in the United Kingdom

Ranked by team size
Top 24 of 3,516 company matches for managed IT service 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 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
2Exact 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
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 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
6Exact 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
7Exact 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
8Exact matchHarrogate, United KingdomHQ recorded Nov 6, 2026201-500587 contacts →

Exact match

“Redcentric partners with over organisations across the UK to solve complex technology challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchReading, United KingdomHQ recorded Nov 6, 2026501-1,000557 contacts →

Exact match

“ESP provides IT support services across the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNottingham, United KingdomHQ recorded Nov 6, 2026501-1,000410 contacts →

Exact match

“Air IT Group aligns technology with your business priorities to deliver outcomes that matter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBasildon, United KingdomHQ recorded Nov 6, 2026201-500406 contacts →

Exact match

“At Babble, we believe that every business deserves the opportunity to thrive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500370 contacts →

Exact match

“Maintel is a communications managed services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchChesterfield, United KingdomHQ recorded Nov 6, 2026201-500351 contacts →

Exact match

“CCS Media is now officially part of Advania UK, the tech company with people at heart.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026501-1,000338 contacts →

Exact match

“prosource.it is a managed IT services provider with a particular focus on infrastructure, operational and project requirements across the corporate enterprise market.”

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 matchBirmingham, United KingdomHQ recorded Nov 6, 2026201-500292 contacts →

Exact match

“At Intercity, we help you Do More with Technology, Cloud & Security, Communications and Managed IT services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLeeds, United KingdomHQ recorded Nov 6, 2026201-500262 contacts →

Exact match

“Assured Data Protection is a global data backup, business continuity, disaster recovery and threat detection managed service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSlough, United KingdomHQ recorded Nov 6, 202651-200248 contacts →

Exact match

“At Sharp Brains, we are your premier IT Services & Solutions Provider based in the UK, dedicated to meeting your business's unique needs with tailor-made solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPentwyn, United KingdomHQ recorded Nov 6, 2026201-500234 contacts →

Exact match

“Vista is the UK market leader in delivering IT technology deployment and support services in retail, hospitality, healthcare and entertainment sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500227 contacts →

Exact match

“Wanstor: Experience First | AI Fluent | Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNottingham, United KingdomHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“Littlefish is a multi-award-winning Managed IT Services Provider that continues to grow consistently and significantly through tangibly delivering on our promises of enhanced user…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200218 contacts →

Exact match

“Managing Microsoft 365 tenants no longer needs to be time-consuming and complex.”

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

Showing 24 of 3,516 managed IT service providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 18,938 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Managed IT service providers based in the United Kingdom at a glance

As of Nov 6, 2026
42.2%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
21.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,050
11-50
1,065
51-200
228
201-500
60
501-1,000
11
1,001-5,000
11
5,001-10,000
1
10001+
2

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 3,516 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 “managed IT service 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 18,938 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 “managed IT service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many managed IT service providers are there based in the United Kingdom?

RevenueBase identified 3,516 company matches for managed IT service 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?

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

Which city has the most managed IT service providers?

London leads with 742 company records, followed by Manchester (74) and Birmingham (46).

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 18,938 professional contacts with verified work emails tracked across these 3,516 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.