Company lists · Data refreshed September 2026

Top 25 Military cybersecurity companies based in the United Kingdom

Name: Military cybersecurity 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 5, 2026 254 companies tracked

RevenueBase identified 254 company matches for military cybersecurity companies associated with the United Kingdom as of September 2026 and tracks 6,207 professional contacts across them, including 1,881 with verified work emails and 697 with mobile numbers. London is the largest hub.

This list covers company matches for military cybersecurity companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. 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 RevenueBase SmartSearch · Exact Recorded Sep 5, 2026 How this list was built

254Companies

6,207Contacts tracked

1,881Verified emails

697Mobile numbers

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The 25 largest military cybersecurity companies based in the United Kingdom

Ranked by team size

Top 25 of 254 company matches for military cybersecurity companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ROKE	Exact match	Romsey, United KingdomHQ recorded Sep 5, 2026	1,001-5,000	679 contacts →
	Exact match “At Roke, we stand at the forefront of defence and security, delivering cutting-edge intelligence and engineering solutions that protect nations, troops, borders, and businesses.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	MASS	Exact match	St Neots, United KingdomHQ recorded Sep 5, 2026	201-500	640 contacts →
	Exact match “MASS, part of the Cohort plc group, helps you realise the value of your data.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	Securityhq	Exact match	London, United KingdomHQ recorded Sep 5, 2026	501-1,000	502 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	Cyberfort	Exact match	Thatcham, United KingdomHQ recorded Sep 5, 2026	51-200	159 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5	Performanta	Exact match	Maidenhead, United KingdomHQ recorded Sep 5, 2026	51-200	156 contacts →
	Exact match “Performanta is a global cybersecurity and data risk management company dedicated to protecting people where data matters most.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	Khipu Networks	Exact match	Fleet, United KingdomHQ recorded Sep 5, 2026	51-200	125 contacts →
	Exact match “KHIPU Networks is an award winning international Cyber Security Company delivering a wide range of network, wireless and security solutions, technologies and services across…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
7	Amethyst Risk Management	Exact match	Basingstoke, United KingdomHQ recorded Sep 5, 2026	11-50	85 contacts →
	Exact match “Amethyst Risk Management is a leading cybersecurity consultancy supplying expert services and support to the UK Government, Defence, Operators of Essential Services, and the…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Foregenix	Exact match	Swindon, United KingdomHQ recorded Sep 5, 2026	51-200	80 contacts →
	Exact match “When your business relies on security, compliance and a strong reputation for taking care of your customers, you need a partner that understands your ethos, your challenges and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	White HAT An Epam Company	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	77 contacts →
	Exact match “White Hat, part of the EPAM group, is an award-winning cyber intelligence and offensive security company that leverages an attacker’s perspective to shape innovative, proactive…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	Eset UK	Exact match	Bournemouth, United KingdomHQ recorded Sep 5, 2026	51-200	66 contacts →
	Exact match “We help businesses and individuals stay protected in an increasingly complex digital world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Wizard Group	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	61 contacts →
	Exact match “The Wizard group consists of 4 companies all within the information technology and cybersecurity industry.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Garrison NOW A Part Of Everfox	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	60 contacts →
	Exact match “Garrison is a London-based cybersecurity company founded in 2014 by David Garfield (CEO) and Henry Harrison (Chief Scientist).” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Hexegic	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	52 contacts →
	Exact match “At Hexegic we are not just passionate about protecting data through our Cyber services we are passionate about helping companies release the potential of the data they hold…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Adarma Security	Exact match	Edinburgh, United KingdomHQ recorded Sep 5, 2026	201-500	51 contacts →
	Exact match “We are Adarma, independent leaders in detection and response services.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	Satisnet, A Gamma Company	Exact match	Luton, United KingdomHQ recorded Sep 5, 2026	51-200	45 contacts →
	Exact match “Established in 2004 (acquired by Gamma in 2023), Satisnet, a Gamma company is a pedigree-proven cyber security services and solutions specialist with a fully UK-based 24x7x365 SOC.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	Coretech Security	Exact match	Cheltenham, United KingdomHQ recorded Sep 5, 2026	51-200	42 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Omerta	Exact match	Saffron Walden, United KingdomHQ recorded Sep 5, 2026	51-200	38 contacts →
	Exact match “Omerta - A Global Security Technology and Services Company.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	Jumpsec	Exact match	Acton, United KingdomHQ recorded Sep 5, 2026	51-200	36 contacts →
	Exact match “Adaptive Cyber Security JUMPSEC operates on a core principle: real attack insight drives stronger defence.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	Parico	Exact match	Bordon, United KingdomHQ recorded Sep 5, 2026	11-50	33 contacts →
	Exact match “Standing at the crossroads of designing, building, testing and deploying secure solutions for Defence.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	Trident Search	Exact match	London, United KingdomHQ recorded Sep 5, 2026	11-50	32 contacts →
	Exact match “Your partner in cyber security talent, investment and events.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	Torrid Networks Limited	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	32 contacts →
	Exact match “Founded in 2006, Torrid Networks has been able to establish strong credentials in the area of cyber security products, research, consulting, managed services, education and staff…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22	Cyb3r	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	32 contacts →
	Exact match “CYB3R Group, is a leading provider of comprehensive Cyber Security, IT and Communications Solutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	Citation Cyber	Exact match	Lancaster, United KingdomHQ recorded Sep 5, 2026	11-50	30 contacts →
	Exact match “Cyber security can feel overwhelming.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	Procheckup PCU	Exact match	Portsmouth, United KingdomHQ recorded Sep 5, 2026	11-50	29 contacts →
	Exact match “Imagine a world where cyber threats are simply another challenge that you're fully equipped to handle.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	ITB LTD	Exact match	Eynsham, United KingdomHQ recorded Sep 5, 2026	11-50	29 contacts →
	Exact match “ITB is a leading supplier of Cybersecurity solutions and services, supported by our strong partnerships with world-class IT Solution providers.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “military cybersecurity companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 254 military cybersecurity companies based in the United Kingdom

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Military cybersecurity companies based in the United Kingdom at a glance

As of Sep 5, 2026

30.3%Verified-email coverage

11.2%Mobile-number coverage

24.4Average contacts per company

11-50Median size (employees)

42.5%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,7310–30

12531–60

261–90

190–180

22180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United Kingdom whose business descriptions match “military cybersecurity companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,881 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Military cybersecurity companies by metro

Military cybersecurity companies in London108

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “military cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many military cybersecurity companies are there based in the United Kingdom?

RevenueBase identified 254 company matches for military cybersecurity companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ROKE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most military cybersecurity companies?

London leads with 108 company records, followed by Manchester (13) and Birmingham (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,881 professional contacts with verified work emails tracked across these 254 companies; direct dials are available where recorded.

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.