Company lists · Data refreshed September 2026

Top 23 IT managed service providers based in the United Kingdom

Name: IT managed service providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 1,936 companies tracked

RevenueBase identified 1,936 company matches for IT managed service providers associated with the United Kingdom as of September 2026 and tracks 24,928 professional contacts across them, including 11,023 with verified work emails and 1,627 with mobile numbers. London is the largest hub.

This list covers company matches for IT managed 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 September 4, 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 Sep 4, 2026 How this list was built

1,936Companies

24,928Contacts tracked

11,023Verified emails

1,627Mobile numbers

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The 23 largest IT managed service providers based in the United Kingdom

Ranked by team size

Top 23 of 1,936 company matches for IT managed service providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 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	Logicalis	Exact match	Maidenhead, United KingdomHQ recorded Sep 4, 2026	5,001-10,000	1,368 contacts →
	Exact match “We are Architects of Change™.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	Nasstar	Exact match	Wakefield, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	841 contacts →
	Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Claranet	Exact match	London, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	816 contacts →
	Exact match “Claranet modernise and run critical applications and infrastructure.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	Redcentric	Exact match	Harrogate, United KingdomHQ recorded Sep 4, 2026	201-500	565 contacts →
	Exact match “Redcentric partners with over organisations across the UK to solve complex technology challenges.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	AIR IT Group	Exact match	Nottingham, United KingdomHQ recorded Sep 4, 2026	501-1,000	378 contacts →
	Exact match “Air IT Group aligns technology with your business priorities to deliver outcomes that matter.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
6	Littlefish	Exact match	Nottingham, United KingdomHQ recorded Sep 4, 2026	201-500	372 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 · Sep 4, 2026 · View company records in RevenueBase
7	Maintel	Exact match	London, United KingdomHQ recorded Sep 4, 2026	201-500	361 contacts →
	Exact match “Maintel is a communications managed services provider.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	BOXXE	Exact match	Hemel Hempstead, United KingdomHQ recorded Sep 4, 2026	201-500	289 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 · Sep 4, 2026 · View company records in RevenueBase
9	Aspire Technology Solutions	Exact match	Gateshead, United KingdomHQ recorded Sep 4, 2026	201-500	264 contacts →
	Exact match “Welcome to Aspire Technology Solutions!” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Wanstor	Exact match	London, United KingdomHQ recorded Sep 4, 2026	201-500	226 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 · Sep 4, 2026 · View company records in RevenueBase
11	Creative ITC	Exact match	London, United KingdomHQ recorded Sep 4, 2026	201-500	175 contacts →
	Exact match “Creative ITC is a global cloud and managed services provider built for complex design, engineering, and business critical IT environments.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	CSI LTD A CSI Group Company	Exact match	Birmingham, United KingdomHQ recorded Sep 4, 2026	201-500	161 contacts →
	Exact match “CSI, A Park Place Technologies Company, is an IT Managed Services Provider bringing world-class Hybrid Multi-Cloud, Data Protection, and Cyber Security solutions to our clients’…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	Transputec LTD	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	154 contacts →
	Exact match “Transputec is an award-winning IT services and solutions provider with over 35 years of experience helping organisations thrive through technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Espria	Exact match	Ware, United KingdomHQ recorded Sep 4, 2026	51-200	148 contacts →
	Exact match “Welcome to Espria.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Uptime	Exact match	Three Bridges, United KingdomHQ recorded Sep 4, 2026	51-200	143 contacts →
	Exact match “Uptime is the leading choice for MSPs across the globe looking to extend the services they offer to clients while simultaneously building recurring revenue.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	Deepscale Technologies LTD	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	143 contacts →
	Exact match “Deepscale Technologies provide data center, enterprise & managed IT solutions across the globe that enhance how businesses operate.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	Global 4	Exact match	Horsham, United KingdomHQ recorded Sep 4, 2026	51-200	134 contacts →
	Exact match “Global 4 is one of the UK’s most effective independent managed service providers supporting businesses of all shapes and sizes all over the UK from our head office, based in…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	Razorblue Group	Exact match	Stockton-on-tees, United KingdomHQ recorded Sep 4, 2026	201-500	129 contacts →
	Exact match “razorblue is a people-focused managed IT partner, committed to helping businesses grow, adapt and succeed through technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
19	Khipu Networks	Exact match	Fleet, United KingdomHQ recorded Sep 4, 2026	51-200	129 contacts →
	Exact match “KHIPU Networks is an award winning international Cyber Security Company delivering a wide range of network, wireless and security solutions, technologies and services across…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
20	Central Technology	Exact match	Chesterfield, United KingdomHQ recorded Sep 4, 2026	51-200	124 contacts →
	Exact match “Central Technology provides a partnership approach to IT solutions, offering Managed IT Support, Cloud, Cyber Security and Telecom Solutions to make a real difference and help…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
21	Tailor Made Technologies	Exact match	Whiteley, United KingdomHQ recorded Sep 4, 2026	51-200	120 contacts →
	Exact match “Tailor Made Technologies (TMT) are experts in managed IT, cyber security, and communication solutions, TMT is on a mission to help small and medium-sized enterprises leverage…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
22	TDM Group	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	116 contacts →
	Exact match “TDM Group Ltd is a global Managed Business IT Service (M-BiTS) provider – our holistic approach to managing and implementing IT considers the impact technology has on the entire…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
23	Core Technology Systems	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	106 contacts →
	Exact match “Core is a managed services company for people and businesses who want to realise modern workplace technology solutions to drive their business forward.” Recorded in the RevenueBase company graph · Sep 4, 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 managed service providers”. 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 23 of 1,936 IT managed service providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,023 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 4, 2026

44.2%Verified-email coverage

6.5%Mobile-number coverage

12.9Average contacts per company

1-10Median size (employees)

21.7%Largest-city concentration · London

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

1,030

11-50

672

51-200

146

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

89631–60

6,01061–90

4,07090–180

47180+

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 managed 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 11,023 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 September 4, 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 managed service providers 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 managed service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,936 company matches for IT managed service providers associated with the United Kingdom as of September 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 IT managed service providers?

London leads with 420 company records, followed by Manchester (32) 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 11,023 professional contacts with verified work emails tracked across these 1,936 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 September 4, 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.