Company lists · Data refreshed September 2026

Top 25 Cloud security network companies based in the United Kingdom

Name: Cloud security network companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 306 companies tracked

RevenueBase identified 306 cloud security network companies headquartered in the United Kingdom as of September 2026 and tracks 4,635 professional contacts across them, including 2,196 with verified work emails. London is the largest hub.

This list covers cloud security network 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

306Companies

4,635Contacts tracked

2,196Verified emails

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The 25 largest cloud security network companies based in the United Kingdom

Ranked by team size

Top 25 of 306 cloud security network companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cloud security network companies: 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	Exponential-E	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	667 contacts →
	Indirect evidence “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Source: RevenueBase Database · checked Sep 21, 2026
2	Iomart	Partial evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	201-500	414 contacts →
	Partial evidence “Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
3	Quorum Cyber	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 21, 2026	201-500	297 contacts →
	Indirect evidence “At Quorum Cyber, we're on a mission to help good people win.” Source: RevenueBase Database · checked Sep 21, 2026
4	Console Connect	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	206 contacts →
	Partial evidence “Console Connect is PCCW Global's integrated on-demand platform and automated network for intelligent data movement.” Source: RevenueBase Database · checked Sep 21, 2026
5	Atech Cloud	Strong evidence	Marlow, United KingdomHQ checked Sep 21, 2026	51-200	178 contacts →
	Strong evidence “24 x 7 Cloud Service Provider & Managed Security Service Provider delivering technology transformation.” Source: RevenueBase Database · checked Sep 21, 2026
6	Cloud Direct	Partial evidence	Bath, United KingdomHQ checked Sep 21, 2026	51-200	168 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
7	Cyberfort	Partial evidence	Thatcham, United KingdomHQ checked Sep 21, 2026	51-200	159 contacts →
	Partial evidence “At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Source: RevenueBase Database · checked Sep 21, 2026
8	Khipu Networks	Strong evidence	Fleet, United KingdomHQ checked Sep 21, 2026	51-200	125 contacts →
	Strong evidence “KHIPU Networks is an award winning international Cyber Security Company delivering a wide range of network, wireless and security solutions, technologies and services across…” Source: RevenueBase Database · checked Sep 21, 2026
9	NTT Ltd. Cloud	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	105 contacts →
	Indirect evidence “Welcome to the home of NTT Ltd.” Source: RevenueBase Database · checked Sep 21, 2026
10	Virtual IT LTD	Partial evidence	South & West Hampstead, United KingdomHQ checked Sep 21, 2026	51-200	79 contacts →
	Partial evidence “Virtual IT are a leading provider of cyber-secure cloud and managed IT services in the UK, entrusted by over 700 businesses and schools as their end-to-end technology partner.” Source: RevenueBase Database · checked Sep 21, 2026
11	Brightsolid	Strong evidence	Dundee, United KingdomHQ checked Sep 21, 2026	51-200	76 contacts →
	Strong evidence “Brightsolid is expert in all things colocation, cloud and cyber security.” Source: RevenueBase Database · checked Sep 21, 2026
12	Specialist Network Operations	Strong evidence	Oswestry, United KingdomHQ checked Sep 21, 2026	51-200	54 contacts →
	Strong evidence “SNO is a specialist network operations and security partner, helping organisations design, secure, and manage the networks they rely on every day.” Source: RevenueBase Database · checked Sep 21, 2026
13	Backbone Connect	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	45 contacts →
	Indirect evidence “Backbone Connect is a dynamic technology firm specialising in solving the unique technological challenges of commercial real estate.” Source: RevenueBase Database · checked Sep 21, 2026
14	Borwood	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	43 contacts →
	Indirect evidence “At Borwood, we believe that seamless, always-on communication is the foundation of global business success.” Source: RevenueBase Database · checked Sep 21, 2026
15	Coretech Security	Partial evidence	Cheltenham, United KingdomHQ checked Sep 21, 2026	51-200	42 contacts →
	Partial evidence “CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission.” Source: RevenueBase Database · checked Sep 21, 2026
16	Online Support	Strong evidence	Brentford, United KingdomHQ checked Sep 21, 2026	11-50	39 contacts →
	Strong evidence “For over 20 years, we’ve helped businesses stay productive, secure and resilient through reliable IT support, modern cloud solutions and cyber security services designed for…” Source: RevenueBase Database · checked Sep 21, 2026
17	Flow Global Solutions	Strong evidence	Hemel Hempstead, United KingdomHQ checked Sep 21, 2026	11-50	32 contacts →
	Strong evidence “Our expert team provide secure datacentre, network and cloud native solutions as well as industry leading managed services.” Source: RevenueBase Database · checked Sep 21, 2026
18	Intrinsic Security	Strong evidence	Peterborough, United KingdomHQ checked Sep 21, 2026	51-200	32 contacts →
	Strong evidence “Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Source: RevenueBase Database · checked Sep 21, 2026
19	Cerberus Networks	Strong evidence	Greenford, United KingdomHQ checked Sep 21, 2026	11-50	30 contacts →
	Strong evidence “Cerberus Networks provides innovative connectivity, cloud computing and managed IT services.” Source: RevenueBase Database · checked Sep 21, 2026
20	Dnssense	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	29 contacts →
	Partial evidence “DNSSense, positioned under Noventiq during 2024–2025, completed a 100% local-ownership restructuring in 2025 and evolved into a Turkey-based, R&D-driven DNS security company.” Source: RevenueBase Database · checked Sep 21, 2026
21	ITB LTD	Indirect evidence	Eynsham, United KingdomHQ checked Sep 21, 2026	11-50	29 contacts →
	Indirect evidence “ITB is a leading supplier of Cybersecurity solutions and services, supported by our strong partnerships with world-class IT Solution providers.” Source: RevenueBase Database · checked Sep 21, 2026
22	Skye Cloud LTD	Partial evidence	London London, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
23	Eloquent Technologies Limited	Partial evidence	Stratford Upon Avon, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
24	Vambrace Cybersecurity	Indirect evidence	Leeds, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Whatever you supply, design, build, manufacture, or grow, its excelling at it that has got your business to where it is today.” Source: RevenueBase Database · checked Sep 21, 2026
25	Nanjgel Solutions	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	24 contacts →
	Partial evidence “Nanjgel Solutions is focused on delivering the best IT security for businesses.” Source: RevenueBase Database · checked Sep 21, 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 security network companies. 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 security network companies.
Partial evidence: Its own public description names part of cloud security network companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud security network companies. 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 306 cloud security network companies based in the United Kingdom

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Cloud security network companies based in the United Kingdom at a glance

As of Sep 21, 2026

47.4%Verified-email coverage

15.1Average contacts per company

11-50Median size (employees)

39.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

144

11-50

115

51-200

201-500

501-1,000

1,001-5,000

10001+

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 306 companies.

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 security network companies, 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 security network companies”. 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 security network companies), 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 security network 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 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, 2,196 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 21, 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 security network companies by metro

Cloud security network companies in London120

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 security network companies, 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 security network companies are there based in the United Kingdom?

RevenueBase identified 306 cloud security network 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?

Exponential-E, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud security network companies?

London leads with 120 headquartered companies, followed by Manchester (7) and Leeds (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 2,196 verified decision-maker contacts tracked across these 306 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 21, 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.