Company lists · Data refreshed September 2026

Top 25 Public cloud operations companies based in the United Kingdom

RevenueBase identified 316 public cloud operations companies headquartered in the United Kingdom as of September 2026 and tracks 18,933 professional contacts across them, including 1,454 with verified work emails and 493 with mobile numbers. London is the largest hub.

This list covers public cloud operations companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
316Companies
18,933Contacts tracked
1,454Verified emails
493Mobile numbers
Explore all 316 companies → Free signup · no credit card · 500 free credits

The 25 largest public cloud operations companies based in the United Kingdom

Ranked by team size
Top 25 of 316 public cloud operations companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names public cloud operations companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
IomartPartial evidence
Glasgow, United KingdomHQ checked Sep 5, 2026201-500414

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

Source: company website · checked Sep 5, 2026
2
VohkusIndirect evidence
Fareham, United KingdomHQ checked Sep 5, 202651-200184

“Vohkus is a rapidly growing, highly agile UK IT supplier specialising in end-to-end IT supply, enterprise infrastructure solutions, and comprehensive managed services.”

Source: company website · checked Sep 5, 2026
3
Creative ITCPartial evidence
London, United KingdomHQ checked Sep 5, 2026201-500173

“Creative ITC is a global cloud and managed services provider built for complex design, engineering, and business critical IT environments.”

Source: company website · checked Sep 5, 2026
4
Cloud DirectPartial evidence
Bath, United KingdomHQ checked Sep 5, 202651-200168

Cloud Direct is a leading Microsoft Partner that helps organisations realise the true value of artificial intelligence and position themselves as Agent-Ready Enterprises.”

Source: company website · checked Sep 5, 2026
5Newtownabbey Antrim, United KingdomHQ checked Sep 5, 20261,001-5,000140

“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: company website · checked Sep 5, 2026
6
Adapt A Datapipe CompanyPartial evidence
London, United KingdomHQ checked Sep 5, 2026201-50098

“Adapt is a leading UK managed cloud services provider and integrator, enabling customers’ digital evolution.”

Source: company website · checked Sep 5, 2026
7
SysgroupPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20089

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

Source: company website · checked Sep 5, 2026
8
KrystalPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20089

“Krystal is a premium UK-based web hosting and cloud services company, here to support you and the planet.”

Source: company website · checked Sep 5, 2026
9
Hyve Managed HostingIndirect evidence
Brighton, United KingdomHQ checked Sep 5, 202651-20077

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

Source: company website · checked Sep 5, 2026
10
CIVOPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20075

“Civo is the Sovereign Cloud and AI platform that frees you to build without limits.”

Source: company website · checked Sep 5, 2026
11
TuliptechIndirect evidence
Leicester, United KingdomHQ checked Sep 5, 202651-20070

“We build business technology, then we stay and run it.”

Source: company website · checked Sep 5, 2026
12
AppviaPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20060

“Appvia helps organisations build, secure and innovate in the cloud.”

Source: company website · checked Sep 5, 2026
13
Just After MidnightIndirect evidence
Reading, United KingdomHQ checked Sep 5, 202651-20052

“We’re Just After Midnight, the go-to support people.”

Source: company website · checked Sep 5, 2026
14
Cognetiks ConsultingPartial evidence
London, United KingdomHQ checked Sep 5, 202611-5046

“We are a leading provider of cloud advisory services, cloud migration, DevOps, automation and cloud-managed services to organizations.”

Source: company website · checked Sep 5, 2026
15
CloudscalerIndirect evidence
London, United KingdomHQ checked Sep 5, 202651-20042

“We are Cloudscaler.”

Source: company website · checked Sep 5, 2026
16
ONAPPPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20031

“OnApp makes cloud fast, easy & profitable for Telcos, MSPs & other cloud service providers.”

Source: company website · checked Sep 5, 2026
17
CircleIndirect evidence
Cardiff, United KingdomHQ checked Sep 5, 202651-20031

“Now trading under the brand ARO Technology.”

Source: company website · checked Sep 5, 2026
18
Westwood Associates LTDIndirect evidence
Chalfont St Peters, United KingdomHQ checked Sep 5, 202611-5031

“Westwood Associates have been in the IT Industry since 1987 and our continued growth and success is down to delivering exactly the right strategy and solution to client’s IT needs.”

Source: company website · checked Sep 5, 2026
19
UKN GroupPartial evidence
Basingstoke, United KingdomHQ checked Sep 5, 202651-20030

“UKN Group is a leading provider of Managed Services and authority for the strategic transition to either a complete virtualised infrastructure or cloud based proposition.”

Source: company website · checked Sep 5, 2026
20
CloudnesilIndirect evidence
London, United KingdomHQ checked Sep 5, 202611-5029

“Founded at 2013, cloudnesil takes a highly technical and innovative approach to development, ranging from utilising the latest toolsets to developing bespoke solutions for…”

Source: company website · checked Sep 5, 2026
21
Skye Cloud LTDPartial evidence
London London, United KingdomHQ checked Sep 5, 202611-5028

“Not your standard "one-size fits all" commoditised Cloud Service Provider, Skye Cloud are passionate about the flexibility and versatility Cloud Computing has to offer and have…”

Source: company website · checked Sep 5, 2026
22Stratford Upon Avon, United KingdomHQ checked Sep 5, 202611-5028

“Eloquent operates a range of platforms across various secure data centres in the UK, all of which are connected to our network and serve as the delivery point for our services.”

Source: company website · checked Sep 5, 2026
23Wokingham, United KingdomHQ checked Sep 5, 202611-5026

“Axians Cloud & Cybersecurity is a specialist IT managed services company with a strategic focus on delivering cloud, infrastructure, compliance, network and security solutions.”

Source: company website · checked Sep 5, 2026
24
Inov8Partial evidence
Glasgow, United KingdomHQ checked Sep 5, 202611-5024

“Developing your Data, Developing your Cloud Platforms.”

Source: company website · checked Sep 5, 2026
25
work2gether.ioPartial evidence
London, United KingdomHQ checked Sep 5, 202651-20023

“Empowering Elite Brands in the Digital Landscape: Your IT Consulting and Services Partner Transforming the Future with Cloud Solutions Technologies!”

Source: company website · checked Sep 5, 2026

Showing 25 of 316 public cloud operations companies based in the United Kingdom

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Public cloud operations companies based in the United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 126 HQs
493Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
163
11-50
108
51-200
33
201-500
6
501-1,000
2
1,001-5,000
4

Verified emails by last verification

0–30
1,360
31–60
89
61–90
1
90–180
0
180+
4

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 public cloud operations companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “public cloud operations companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among public cloud operations companies, 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 an evidence 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, 1,454 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 September 5, 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.

Public cloud operations companies by metro

  • Public cloud operations companies in London126

Frequently asked

How many public cloud operations companies are there based in the United Kingdom?

RevenueBase identified 316 public cloud operations companies headquartered in the United Kingdom as of September 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?

Iomart, headquartered in Glasgow, tops this list with the largest team on record.

Which city has the most public cloud operations companies?

London leads with 126 headquartered companies, followed by Manchester (11) and Glasgow (6).

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 1,454 verified decision-maker contacts tracked across these 316 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.