Company lists · Data refreshed August 2026
Top 25 5g security software based in the United Kingdom
RevenueBase identified 85 5g security software headquartered in the United Kingdom as of August 2026 and tracks 7,064 professional contacts across them, including 3,485 with verified work emails and 1,011 with mobile numbers. London is the largest hub.
This list covers 5g security software 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 August 30, 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.
The 25 largest 5g security software based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,963 | ||||
“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 638 | ||||
“Enea is a global specialist in advanced telecom and cybersecurity software, with a vision to make the world’s communications safer and more efficient.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 292 | ||||
“At Quorum Cyber, we're on a mission to help good people win.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 135 | ||||
“At Cipher, we're redefining digital security as the premier cybersecurity leader in the Middle East.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 129 | ||||
“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: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 89 | ||||
“Dedicated to securing the networks society depends on.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 | ||||
“With a heritage of creating National Cyber Security Centre certified products, Becrypt, a Leonardo company, is a trusted provider of endpoint cybersecurity software solutions.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 66 | ||||
“We help businesses and individuals stay protected in an increasingly complex digital world.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 | ||||
“Garrison is a London-based cybersecurity company founded in 2014 by David Garfield (CEO) and Henry Harrison (Chief Scientist).” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 41 | ||||
“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: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 | ||||
“Since 2011, we’ve pushed the boundaries of what’s possible in the mobile security space.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 22 | ||||
“4Secure is a trusted provider of software defined, cross-network/cross-domain cybersecurity solutions for commercial, government and defence.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 | ||||
“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: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | ClearswiftIndirect evidence | 19 | |||
“Why Clearswift?” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | CST Limited Computer Security TechnologyPartial evidence | 17 | |||
“We are a London based specialist supplier of cyber defence solution and information security services.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 | ||||
“CyberHive protects the most valued organisations, their people data, and assets, with patented technology that is simple, secure and performant.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 | ||||
“Our mission is to provide business customers with effective cloud network security solutions that enhance productivity, eliminate silos, reduce costs, and achieve digital…” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“PC POWER INTERNATIONAL LTD is a computer & network security company based in the City, London, United Kingdom.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 | ||||
“GBMS Tech are leading providers of Innovative, effective, proactive cyber security products and services with advanced highly secure zero trust quantum safe solutions.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | Netaccess LTDIndirect evidence | 8 | |||
“Design Philosophy The netaccess core design philosophy has always been to develop systems that support customer processes, ensure our products work for the user and reduce, as far…” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 | ||||
“Rebasoft is a UK based Software and Services company, founded in 2009 and produces software solutions for the Cyber Security market space.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 | ||||
“Empower your digital defence; secure devices using SmartSafe embedded security.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“We provide market-leading cybersecurity products to protect your mobile devices and computers from malicious attacks, identity theft and fraud.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 | ||||
“idappcom is a privately owned business founded in 2004.” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 | ||||
“With a belief that the security of IT systems and networks is of primary importance to any business, Atomos Networks was created to deliver world class networks and network…” Source: company website · checked Aug 30, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 85 5g security software based in the United Kingdom
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5g security software based in the United Kingdom at a glance
As of Aug 30, 2026Companies by employee count
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 5g security software, 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 “5g security software”. 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 5g security software, 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, 3,485 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 30, 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.
5g security software by metro
Frequently asked
How many 5g security software are there based in the United Kingdom?
RevenueBase identified 85 5g security software 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?
Sophos, headquartered in Abingdon, tops this list with the largest team on record.
Which city has the most 5g security software?
London leads with 33 headquartered companies, followed by Manchester (3) and Northampton (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 3,485 verified decision-maker contacts tracked across these 85 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 30, 2026.
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5g security software by geography
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- 5g security software based in London, United Kingdom
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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.