Company lists · Data refreshed September 2026

Top 25 Edge computing security companies based in the United Kingdom

Name: Edge computing security 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 1, 2026 149 companies tracked

RevenueBase identified 149 edge computing security companies headquartered in the United Kingdom as of September 2026 and tracks 10,257 professional contacts across them, including 5,472 with verified work emails and 1,618 with mobile numbers. London is the largest hub.

This list covers edge computing security 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 1, 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 Sep 1, 2026 86% judged on-target in blind review

149Companies

10,257Contacts tracked

5,472Verified emails

1,618Mobile numbers

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The 25 largest edge computing security companies based in the United Kingdom

Ranked by team size

Top 25 of 149 edge computing security companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to edge computing security 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	Sophos	Indirect evidence	Abingdon, United Kingdom	5,001-10,000	4,963 contacts →
	Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 1, 2026
2	Darktrace	Indirect evidence	Cambridge, United Kingdom	1,001-5,000	2,590 contacts →
	Indirect evidence “Darktrace is a global leader in AI cybersecurity, providing the essential cybersecurity platform to secure organizations today and for an ever-changing future.” Source: RevenueBase Database · checked Sep 1, 2026
3	SISA	Partial evidence	Leicester, United Kingdom	201-500	739 contacts →
	Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 1, 2026
4	Quorum Cyber	Indirect evidence	Edinburgh, United Kingdom	201-500	292 contacts →
	Indirect evidence “At Quorum Cyber, we're on a mission to help good people win.” Source: RevenueBase Database · checked Sep 1, 2026
5	Cipher سايڤر	Partial evidence	London, United Kingdom	201-500	135 contacts →
	Partial evidence “At Cipher, we're redefining digital security as the premier cybersecurity leader in the Middle East.” Source: RevenueBase Database · checked Sep 1, 2026
6	Khipu Networks	Partial evidence	Fleet, United Kingdom	51-200	129 contacts →
	Partial 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 1, 2026
7	Foresite Cybersecurity	Indirect evidence	Farnborough, United Kingdom	51-200	100 contacts →
	Indirect evidence “As the world becomes more connected, our lives and businesses are more vulnerable.” Source: RevenueBase Database · checked Sep 1, 2026
8	Telesoft	Indirect evidence	Blandford, United Kingdom	51-200	68 contacts →
	Indirect evidence “The organisations that run our world face relentless complexity and evolving threats.” Source: RevenueBase Database · checked Sep 1, 2026
9	Eset UK	Indirect evidence	Bournemouth, United Kingdom	51-200	66 contacts →
	Indirect evidence “We help businesses and individuals stay protected in an increasingly complex digital world.” Source: RevenueBase Database · checked Sep 1, 2026
10	Garrison NOW A Part Of Everfox	Indirect evidence	London, United Kingdom	51-200	59 contacts →
	Indirect evidence “Garrison is a London-based cybersecurity company founded in 2014 by David Garfield (CEO) and Henry Harrison (Chief Scientist).” Source: RevenueBase Database · checked Sep 1, 2026
11	Attivo Networks , A Sentinelone Company	Indirect evidence	Cambridge, United Kingdom	1,001-5,000	57 contacts →
	Indirect evidence “SentinelOne, an autonomous cybersecurity platform company, has completed the acquisition of Attivo Networks.” Source: RevenueBase Database · checked Sep 1, 2026
12	Coretech Security	Partial evidence	Cheltenham, United Kingdom	51-200	41 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 1, 2026
13	Syxsense, An Absolute Security Company	Indirect evidence	Basingstoke, United Kingdom	51-200	37 contacts →
	Indirect evidence “Syxsense is the leading provider of innovative, intuitive technology that sees all and knows everything about every endpoint, in every location, everywhere inside and outside the…” Source: RevenueBase Database · checked Sep 1, 2026
14	FLOW	Indirect evidence	Hemel Hempstead, United Kingdom	11-50	33 contacts →
	Indirect evidence “Our expert team provide secure datacentre, network and cloud native solutions as well as industry leading managed services.” Source: RevenueBase Database · checked Sep 1, 2026
15	Dnssense	Partial evidence	London, United Kingdom	51-200	30 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 1, 2026
16	Mindtech Services	Partial evidence	London, United Kingdom	51-200	26 contacts →
	Partial evidence “At MindTech Global, we are dedicated to creating a safer, smarter, and more connected world through cutting-edge technology and unmatched expertise.” Source: RevenueBase Database · checked Sep 1, 2026
17	Encode	Strong evidence	London, United Kingdom	51-200	25 contacts →
	Strong evidence “Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.” Source: RevenueBase Database · checked Sep 1, 2026
18	Valarian	Indirect evidence	London, United Kingdom	11-50	24 contacts →
	Indirect evidence “Valarian builds infrastructure for organisations operating in high-trust, high-stakes environments.” Source: RevenueBase Database · checked Sep 1, 2026
19	4secure LTD	Indirect evidence	Northampton, United Kingdom	11-50	22 contacts →
	Indirect evidence “4Secure is a trusted provider of software defined, cross-network/cross-domain cybersecurity solutions for commercial, government and defence.” Source: RevenueBase Database · checked Sep 1, 2026
20	Giraffe Cctv	Partial evidence	Barnstaple, United Kingdom	11-50	21 contacts →
	Partial evidence “Established in 2012, Giraffe is a technology business supplying solutions to the global security sector, with core competencies in industrial design and software development.” Source: RevenueBase Database · checked Sep 1, 2026
21	Clearswift	Indirect evidence	Berkshire, United Kingdom	201-500	19 contacts →
	Indirect evidence “Why Clearswift?” Source: RevenueBase Database · checked Sep 1, 2026
22	Hexiosec	Indirect evidence	Cheltenham, United Kingdom	11-50	18 contacts →
	Indirect evidence “Hexiosec is the new name for Red Maple Technologies.” Source: RevenueBase Database · checked Sep 1, 2026
23	Infosec K2k	Indirect evidence	London, United Kingdom	51-200	17 contacts →
	Indirect evidence “Infosec K2K safeguards your organisation’s most valuable assets with tailored cybersecurity solutions.” Source: RevenueBase Database · checked Sep 1, 2026
24	CST Limited Computer Security Technology	Partial evidence	London, United Kingdom	11-50	17 contacts →
	Partial evidence “We are a London based specialist supplier of cyber defence solution and information security services.” Source: RevenueBase Database · checked Sep 1, 2026
25	Cyberhive	Indirect evidence	Newbury, United Kingdom	11-50	16 contacts →
	Indirect evidence “CyberHive protects the most valued organisations, their people data, and assets, with patented technology that is simple, secure and performant.” Source: RevenueBase Database · checked Sep 1, 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: edge computing security 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 edge computing security companies.
Partial evidence: Its own public description names part of edge computing security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name edge computing security 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 149 edge computing security companies based in the United Kingdom

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Edge computing security companies based in the United Kingdom at a glance

As of Sep 1, 2026

53.3%Verified-email coverage

15.8%Mobile-number coverage

68.8Average contacts per company

11-50Median size (employees)

33.6%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 edge computing security 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 “edge computing security 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 edge computing security 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 edge computing security 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, 5,472 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 1, 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.

Edge computing security companies by metro

Edge computing security companies in London50

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 edge computing security 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 edge computing security companies are there based in the United Kingdom?

RevenueBase identified 149 edge computing security 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?

Sophos, headquartered in Abingdon, tops this list with the largest team on record.

Which city has the most edge computing security companies?

London leads with 50 headquartered companies, followed by Manchester (5) and Cambridge (4).

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 5,472 verified decision-maker contacts tracked across these 149 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 1, 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.