Company lists · Data refreshed August 2026

Top 25 Cloud infrastructure support providers based in the United Kingdom

Name: Cloud infrastructure support providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 1,749 companies tracked

RevenueBase identified 1,749 cloud infrastructure support providers headquartered in the United Kingdom as of August 2026 and tracks 57,713 professional contacts across them, including 15,093 with verified work emails and 4,548 with mobile numbers. London is the largest hub.

This list covers cloud infrastructure support providers headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 31, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

1,749Companies

57,713Contacts tracked

15,093Verified emails

4,548Mobile numbers

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The 25 largest cloud infrastructure support providers based in the United Kingdom

Ranked by team size

Top 25 of 1,749 cloud infrastructure support providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to cloud infrastructure support providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nutanix	Partial evidence	London, United Kingdom	5,001-10,000	8,999 contacts →
	Partial evidence “Nutanix is a global leader in cloud software, offering organizations a single platform for running apps and data across clouds.” Source: RevenueBase Database · checked Aug 31, 2026
2	Ovhcloud	Partial evidence	London, United Kingdom	1,001-5,000	3,039 contacts →
	Partial evidence “OVHcloud is a global player and the leading European cloud provider operating over servers within 43 data centers across 4 continents to reach 1,6 million customers in over 140…” Source: RevenueBase Database · checked Aug 31, 2026
3	Nasstar	Indirect evidence	Wakefield, United Kingdom	1,001-5,000	841 contacts →
	Indirect evidence “Complexity isn’t the enemy.” Source: RevenueBase Database · checked Aug 31, 2026
4	Claranet	Partial evidence	Warrington, United Kingdom	1,001-5,000	816 contacts →
	Partial evidence “Claranet modernise and run critical applications and infrastructure.” Source: RevenueBase Database · checked Aug 31, 2026
5	Bytes Software Services	Indirect evidence	Portsmouth, United Kingdom	501-1,000	784 contacts →
	Indirect evidence “Bytes is a leading provider of world-class IT solutions.” Source: RevenueBase Database · checked Aug 31, 2026
6	Aress Software	Indirect evidence	Hampshire, United Kingdom	501-1,000	654 contacts →
	Indirect evidence “For over 25 years, Aress Software has been the silent engine behind IT operations that never stop.” Source: RevenueBase Database · checked Aug 31, 2026
7	Devoteam Google Cloud Partner	Partial evidence	London, United Kingdom	501-1,000	546 contacts →
	Partial evidence “Devoteam is a Diamond Tier Partner in the Google Cloud Services Partner Path and a Managed Services Provider.” Source: RevenueBase Database · checked Aug 31, 2026
8	Maintech, Incorporated	Partial evidence	London, United Kingdom	501-1,000	529 contacts →
	Partial evidence “Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.” Source: RevenueBase Database · checked Aug 31, 2026
9	Iomart	Partial evidence	Glasgow, United Kingdom	201-500	422 contacts →
	Partial evidence “Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Source: RevenueBase Database · checked Aug 31, 2026
10	Babble	Indirect evidence	Basildon, United Kingdom	201-500	397 contacts →
	Indirect evidence “At Babble, we believe that every business deserves the opportunity to thrive.” Source: RevenueBase Database · checked Aug 31, 2026
11	BUI	Partial evidence	Derby, United Kingdom	51-200	250 contacts →
	Partial evidence “BUI is an award-winning global technology consultancy delivering cloud, security, networking and managed services from offices in South Africa, East Africa, the United Kingdom…” Source: RevenueBase Database · checked Aug 31, 2026
12	Wanstor	Indirect evidence	London, United Kingdom	201-500	226 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Aug 31, 2026
13	Proact IT Group AB	Partial evidence	Leeds, United Kingdom	1,001-5,000	224 contacts →
	Partial evidence “Proact is a leading IT expert helping customers secure business critical data via best in class hybrid cloud solutions.” Source: RevenueBase Database · checked Aug 31, 2026
14	The Missing Link	Indirect evidence	London, United Kingdom	201-500	216 contacts →
	Indirect evidence “For over 28 years, The Missing Link has been a trusted technology partner to enterprise, government and high-growth businesses across Australia.” Source: RevenueBase Database · checked Aug 31, 2026
15	Vohkus	Indirect evidence	Fareham, United Kingdom	51-200	189 contacts →
	Indirect evidence “When the only constant is change, staying ahead in business is a non-stop business.” Source: RevenueBase Database · checked Aug 31, 2026
16	Qualcom	Indirect evidence	Newtownabbey, United Kingdom	51-200	181 contacts →
	Indirect evidence “Qualcom provides ultra secure managed IT services using a security first ethos which maximises IT uptime and ensures that data is protected and accessible 24/7.” Source: RevenueBase Database · checked Aug 31, 2026
17	Creative ITC	Partial evidence	London, United Kingdom	201-500	175 contacts →
	Partial evidence “Creative ITC is a global cloud and managed services provider built for complex design, engineering, and business critical IT environments.” Source: RevenueBase Database · checked Aug 31, 2026
18	CSI LTD A CSI Group Company	Partial evidence	London, United Kingdom	201-500	161 contacts →
	Partial evidence “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’…” Source: RevenueBase Database · checked Aug 31, 2026
19	Deepscale Technologies LTD	Indirect evidence	London, United Kingdom	51-200	143 contacts →
	Indirect evidence “Deepscale Technologies provide data center, enterprise & managed IT solutions across the globe that enhance how businesses operate.” Source: RevenueBase Database · checked Aug 31, 2026
20	Capita Managed IT Solutions	Strong evidence	Newtownabbey Antrim, United Kingdom	1,001-5,000	140 contacts →
	Strong evidence “Capita Managed IT Solutions provides cloud based and infrastructure services to public, private and third sector organisations, in addition to specialist managed services in…” Source: RevenueBase Database · checked Aug 31, 2026
21	Beeks Group	Partial evidence	Glasgow, United Kingdom	51-200	119 contacts →
	Partial evidence “Beeks is a leading force in financial technology infrastructure, specialising in Infrastructure as a Service (IaaS) for the high-frequency trading sector within capital markets…” Source: RevenueBase Database · checked Aug 31, 2026
22	NTT Ltd. Cloud	Indirect evidence	London, United Kingdom	201-500	112 contacts →
	Indirect evidence “Welcome to the home of NTT Ltd.” Source: RevenueBase Database · checked Aug 31, 2026
23	RDX	Partial evidence	London, United Kingdom	501-1,000	110 contacts →
	Partial evidence “Navisite is a modern managed cloud service provider that accelerates IT transformation for thousands of growing and established global brands.” Source: RevenueBase Database · checked Aug 31, 2026
24	VCG Technology Services	Partial evidence	Stockport, United Kingdom	51-200	105 contacts →
	Partial evidence “VCG is a managed service provider supporting businesses in their technology and business transformation journey.” Source: RevenueBase Database · checked Aug 31, 2026
25	Krome Technologies LTD	Indirect evidence	Manchester, United Kingdom	51-200	99 contacts →
	Indirect evidence “Krome Technologies is a people-centric, service-orientated, technical consultancy and managed services provider, offering agile, efficient, and scalable IT services, including the…” Source: RevenueBase Database · checked Aug 31, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cloud infrastructure support providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cloud infrastructure support providers.
Partial evidence: Its own public description names part of cloud infrastructure support providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud infrastructure support providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,749 cloud infrastructure support providers based in the United Kingdom

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Cloud infrastructure support providers based in the United Kingdom at a glance

As of Aug 31, 2026

26.2%Verified-email coverage

7.9%Mobile-number coverage

33.0Average contacts per company

1-10Median size (employees)

28.3%Largest-city concentration · London

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

942

11-50

581

51-200

127

201-500

501-1,000

1,001-5,000

5,001-10,000

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cloud infrastructure support providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “cloud infrastructure support providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cloud infrastructure support providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cloud infrastructure support providers, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 15,093 across the full list. 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 August 31, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cloud infrastructure support providers by metro

Cloud infrastructure support providers in London495
Cloud infrastructure support providers in Manchester47

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cloud infrastructure support providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 1,749 cloud infrastructure support providers headquartered in the United Kingdom as of August 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nutanix, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud infrastructure support providers?

London leads with 495 headquartered companies, followed by Manchester (47) and Leeds (24).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 15,093 verified decision-maker contacts tracked across these 1,749 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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 Smart Search, 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.