Company lists · Data refreshed September 2026

Top 25 Infrastructure operations outsourcing companies based in the United Kingdom

RevenueBase identified 444 company matches for infrastructure operations outsourcing companies associated with the United Kingdom as of September 2026 and tracks 17,553 professional contacts across them, including 5,897 with verified work emails. London is the largest hub.

This list covers company matches for infrastructure operations outsourcing 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 September 28, 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 28, 2026 How this list was built
444Companies
17,553Contacts tracked
5,897Verified emails
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The 25 largest infrastructure operations outsourcing companies based in the United Kingdom

Ranked by team size
Top 25 of 444 company matches for infrastructure operations outsourcing companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchMarlow, United KingdomHQ recorded Sep 28, 20261,001-5,0002,886 contacts →

Exact match

“Softcat is a leading provider of IT infrastructure to corporate and public sectors.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,0001,842 contacts →

Exact match

“NTT Global Data Centers is a division of NTT DATA.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,0001,039 contacts →

Exact match

“Global business doesn’t have to be complicated.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000667 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 · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,000616 contacts →

Exact match

“Excis is a trusted global IT services company, delivering agile, multilingual support across 150+ countries.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000585 contacts →

Exact match

“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchFleet, United KingdomHQ recorded Sep 28, 20261,001-5,000540 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500453 contacts →

Exact match

“Redstone is now part of RedstoneConnect PLC.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchGlasgow, United KingdomHQ recorded Sep 28, 2026201-500414 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 · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLiverpool, United KingdomHQ recorded Sep 28, 2026201-500257 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 · Sep 28, 2026 · View company records in RevenueBase
11Exact matchSlough, United KingdomHQ recorded Sep 28, 202651-200241 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 · Sep 28, 2026 · View company records in RevenueBase
12Exact matchManchester, United KingdomHQ recorded Sep 28, 2026201-500228 contacts →

Exact match

“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500173 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 28, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200141 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 28, 2026 · View company records in RevenueBase
15Exact matchNewtownabbey Antrim, United KingdomHQ recorded Sep 28, 20261,001-5,000140 contacts →

Exact match

“Capita Managed IT Solutions provides cloud based and infrastructure services to public, private and third sector organisations, in addition to specialist managed services in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20089 contacts →

Exact match

“SysGroup is the services leader for realising AI transformation, as an award-winning managed IT services, cloud hosting, and IT consultancy provider.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20087 contacts →

Exact match

“We are Technimove.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20087 contacts →

Exact match

“At Constor Solutions, we believe that technology is the backbone of a successful business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20082 contacts →

Exact match

“ORM is now Paragon DCX.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchWokingham, United KingdomHQ recorded Sep 28, 202651-20078 contacts →

Exact match

“We provide industry leading IT infrastructure services to our clients; from IT Consultancy through to Event IT Services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchBrighton, United KingdomHQ recorded Sep 28, 202651-20077 contacts →

Exact match

“We are a fully-managed global hosting provider offering industry-leading technology with a customer-centric approach.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchBallasalla, United KingdomHQ recorded Sep 28, 202611-5074 contacts →

Exact match

“From state-of-the-art data centres, cloud and network services, to proactive support and consultancy services, our solutions are designed to help you achieve your business goals…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchCanterbury, United KingdomHQ recorded Sep 28, 202651-20072 contacts →

Exact match

“ADM Computing is an independent, family-owned IT services provider headquartered in Canterbury, supporting organisations across Kent, London and the South East since 1984.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchBrentwood, United KingdomHQ recorded Sep 28, 202611-5067 contacts →

Exact match

“3Gi Technology is a global IT Managed Service Provider (MSP) offering enterprise level IT Professional Services to numerous companies all over the world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchStockton-on-tees, United KingdomHQ recorded Sep 28, 202651-20066 contacts →

Exact match

“We would like to share some exciting news – Onyx Group has been acquired by cloud, colocation and managed hosting expert Pulsant, expanding its network to 15 UK-based datacentres.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 444 infrastructure operations outsourcing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,897 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure operations outsourcing companies based in the United Kingdom at a glance

As of Sep 28, 2026
33.6%Verified-email coverage
39.5Average contacts per company
11-50Median size (employees)
33.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
167
11-50
160
51-200
73
201-500
18
501-1,000
7
1,001-5,000
14
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 444 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 “infrastructure operations outsourcing 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 5,897 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 28, 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.

Infrastructure operations outsourcing 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 “infrastructure operations outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure operations outsourcing companies are there based in the United Kingdom?

RevenueBase identified 444 company matches for infrastructure operations outsourcing companies 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?

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

Which city has the most infrastructure operations outsourcing companies?

London leads with 148 company records, followed by Manchester (12) and Bristol (6).

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 5,897 professional contacts with verified work emails tracked across these 444 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 28, 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.