Company lists · Data refreshed September 2026

Top 25 Edge computing security software companies based in the United Kingdom

Name: Edge computing security software 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 28, 2026 95 companies tracked

RevenueBase identified 95 edge computing security software companies headquartered in the United Kingdom as of September 2026 and tracks 8,876 professional contacts across them, including 4,970 with verified work emails. London is the largest hub.

This list covers edge computing security software 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 28, 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 28, 2026 86% judged on-target in blind review

95Companies

8,876Contacts tracked

4,970Verified emails

Explore this list → Free signup · no credit card · 500 free credits

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

Ranked by team size

Top 25 of 95 edge computing security software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to edge computing security software 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 KingdomHQ checked Sep 28, 2026	5,001-10,000	4,925 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 28, 2026
2	Darktrace	Indirect evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	1,001-5,000	2,355 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 28, 2026
3	Quorum Cyber	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 28, 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 28, 2026
4	Trustonic	Partial evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	51-200	146 contacts →
	Partial evidence “Trustonic is the global leader in device-locking technology and security solutions for connected devices (including the Trusted Execution Environment (TEE)).” Source: RevenueBase Database · checked Sep 28, 2026
5	Telesoft	Indirect evidence	Blandford, United KingdomHQ checked Sep 28, 2026	51-200	68 contacts →
	Indirect evidence “The organisations that run our world face relentless complexity and evolving threats.” Source: RevenueBase Database · checked Sep 28, 2026
6	Eset UK	Indirect evidence	Bournemouth, United KingdomHQ checked Sep 28, 2026	51-200	66 contacts →
	Indirect evidence “We help businesses and individuals stay protected in an increasingly complex digital world.” Source: RevenueBase Database · checked Sep 28, 2026
7	Garrison NOW A Part Of Everfox	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	60 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 28, 2026
8	Nothreat	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Partial evidence “The future of IoT/OT security is here.” Source: RevenueBase Database · checked Sep 28, 2026
9	Cyberwhiz IOT Cyber Security	Strong evidence	Cheltenham, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Strong evidence “At CyberWhiz, we build next-generation IoT Cyber Security solutions across the three pillars of IoT, which are Edge·Mobile·Cloud.” Source: RevenueBase Database · checked Sep 28, 2026
10	4secure LTD	Partial evidence	Northampton, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial 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 28, 2026
11	Giraffe Cctv	Strong evidence	Barnstaple, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Strong 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 28, 2026
12	Hexiosec	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Hexiosec is the new name for Red Maple Technologies.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cyberrey	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Your Trusted Distribution & Security Solutions in Building and Securing Your Digital Ecosystem Cyberrey is a leading distributor of comprehensive cybersecurity solutions…” Source: RevenueBase Database · checked Sep 28, 2026
14	Blackdice Cyber	Indirect evidence	Leeds, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “BlackDice Cyber helps telcos turn their networks into platforms of trust.” Source: RevenueBase Database · checked Sep 28, 2026
15	Cyberhive	Indirect evidence	Newbury, United KingdomHQ checked Sep 28, 2026	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 28, 2026
16	Blockapt	Indirect evidence	Southwark, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Award-winning BlockAPT is redefining cybersecurity with an AI-powered, autonomous, self-defending platform built to protect modern digital ecosystems at speed and scale.” Source: RevenueBase Database · checked Sep 28, 2026
17	Praeferre	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Praeferre is an AI-powered cybersecurity company, backed by SFC Capital, shaping the future of business security and compliance.” Source: RevenueBase Database · checked Sep 28, 2026
18	Defenx	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Defenx is an IT company that has an extensive background in providing businesses with cloud based security solutions and support for their digital infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
19	Iothic LTD	Indirect evidence	Waltham Abbey, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
20	Defensityone	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “DefensityOne is a cybersecurity solutions provider specializing in proactive threat detection, risk management, and digital defense services.” Source: RevenueBase Database · checked Sep 28, 2026
21	Deep Secure Everfox	Indirect evidence	Malvern, United KingdomHQ checked Sep 28, 2026	51-200	8 contacts →
	Indirect evidence “Founded in 2010, Deep Secure's Threat Removal CDR Platform creates secure zones around key parts of a business, or the entire organisation to ensure protection from zero-day…” Source: RevenueBase Database · checked Sep 28, 2026
22	MYDIS	Strong evidence	Redditch, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Strong evidence “MYDIS is a UK-based security and software firm reimagining how physical and digital systems work together to protect, optimise, and empower high-risk environments.” Source: RevenueBase Database · checked Sep 28, 2026
23	Blueskytec	Strong evidence	Bath, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Security for Cyber-Physical systems cannot be just a "software download" to your device, it needs to be built in from the ground up.” Source: RevenueBase Database · checked Sep 28, 2026
24	Countershadow	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “CounterShadow is redefining the cybersecurity landscape as the future of agentic cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
25	Rebasoft Limited	Strong evidence	Reading, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Rebasoft is a UK based Software and Services company, founded in 2009 and produces software solutions for the Cyber Security market space.” Source: RevenueBase Database · checked Sep 28, 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 software 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 software companies.
Partial evidence: Its own public description names part of edge computing security software 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 software 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 95 edge computing security software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 4,970 reachable decision-makers.

Free signup · no credit card

View the full list →

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

As of Sep 28, 2026

56.0%Verified-email coverage

93.4Average contacts per company

11-50Median size (employees)

38.9%Largest-city concentration · London

Sep 28, 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

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 95 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 edge computing security software 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 software 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 software 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 software 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, 4,970 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 28, 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 software companies by metro

Edge computing security software companies in London37

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 software 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 software companies are there based in the United Kingdom?

RevenueBase identified 95 edge computing security software 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 software companies?

London leads with 37 headquartered companies, followed by Cambridge (3) and Cheltenham (3).

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 4,970 verified decision-maker contacts tracked across these 95 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 95 edge computing security software companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Edge computing security software companies by geography

Browse the directory

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.