Company lists · Data refreshed September 2026

Top 22 Healthcare cybersecurity companies based in the United Kingdom

Name: Healthcare 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 3, 2026 115 companies tracked

RevenueBase identified 115 company matches for healthcare cybersecurity companies associated with the United Kingdom as of September 2026 and tracks 7,483 professional contacts across them, including 3,796 with verified work emails and 1,057 with mobile numbers. London is the largest hub.

This list covers company matches for healthcare 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 3, 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 3, 2026 How this list was built

115Companies

7,483Contacts tracked

3,796Verified emails

1,057Mobile numbers

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The 22 largest healthcare cybersecurity companies based in the United Kingdom

Ranked by team size

Top 22 of 115 company matches for healthcare cybersecurity companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 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	Sophos	Exact match	Abingdon, United KingdomHQ recorded Sep 3, 2026	5,001-10,000	4,963 contacts →
	Exact match “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2	Cyberfort	Exact match	Thatcham, United KingdomHQ recorded Sep 3, 2026	51-200	160 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 3, 2026 · View company records in RevenueBase
3	Cybersmart	Exact match	London, United KingdomHQ recorded Sep 3, 2026	51-200	83 contacts →
	Exact match “Cybersecurity should be simple.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4	Adarma Security	Exact match	Edinburgh, United KingdomHQ recorded Sep 3, 2026	201-500	52 contacts →
	Exact match “We are Adarma, independent leaders in detection and response services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5	defense.com	Exact match	Stevenage, United KingdomHQ recorded Sep 3, 2026	51-200	32 contacts →
	Exact match “Defense.com is transforming the way businesses manage cyber security by allowing them to easily identify, prioritise and remediate threats.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6	Pentesec	Exact match	Peterborough, United KingdomHQ recorded Sep 3, 2026	51-200	24 contacts →
	Exact match “Check Point Partner of the Year 2022 CRN MSSP of the Year 2021 Pentesec has been challenging the status quo in Cyber Security since 2014 when 5 industry veterans decided they were…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7	AMR Cybersecurity	Exact match	Cheltenham, United KingdomHQ recorded Sep 3, 2026	11-50	23 contacts →
	Exact match “AMR CyberSecurity delivers next generation cyber security services to assist organisations across a wide variety of sectors in understanding potential threats and effectively…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8	Blue Cube Security LTD	Exact match	East Grinstead, United KingdomHQ recorded Sep 3, 2026	11-50	23 contacts →
	Exact match “Blue Cube Security is a trusted UK cyber security partner with over 25 years of experience helping organisations stay secure in an increasingly complex digital world.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9	Blackfoot Cybersecurity	Exact match	Welwyn Garden City, United KingdomHQ recorded Sep 3, 2026	11-50	23 contacts →
	Exact match “For the past 17 years, we have been successfully empowering our clients to protect their business from cyber-threats and comply with industry standards and regulations.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10	CYPRO	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	22 contacts →
	Exact match “Secure.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11	Addvantage Digital Solutions	Exact match	Bolton, United KingdomHQ recorded Sep 3, 2026	11-50	21 contacts →
	Exact match “ADDVantage Technologies partner with you to create digital solutions for all your healthcare needs.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12	Clearswift	Exact match	Berkshire, United KingdomHQ recorded Sep 3, 2026	201-500	19 contacts →
	Exact match “Why Clearswift?” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13	Infosec K2k	Exact match	London, United KingdomHQ recorded Sep 3, 2026	51-200	17 contacts →
	Exact match “Infosec K2K safeguards your organisation’s most valuable assets with tailored cybersecurity solutions.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14	Ithealth U.K. LTD	Exact match	Nottingham, United KingdomHQ recorded Sep 3, 2026	11-50	16 contacts →
	Exact match “ITHealth provides proven and trusted cybersecurity and access management solutions to NHS organisations.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15	Loughtec IT Cyber Security	Exact match	Omagh, United KingdomHQ recorded Sep 3, 2026	51-200	16 contacts →
	Exact match “LoughTec specialises in IT and cybersecurity solutions, focusing on proactive preventative and reactive measures to exceed both the current and also the new and ever-evolving…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16	Cyberhive	Exact match	Newbury, United KingdomHQ recorded Sep 3, 2026	11-50	16 contacts →
	Exact match “CyberHive protects the most valued organisations, their people data, and assets, with patented technology that is simple, secure and performant.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17	B10sec	Exact match	Cheltenham, United KingdomHQ recorded Sep 3, 2026	11-50	16 contacts →
	Exact match “B10SEC is a company specialising in cybersecurity and data protection services and solutions, headquartered in Gloucestershire, UK, with branches in Portugal, Brazil and Mexico.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18	Periculo	Exact match	United KingdomHQ recorded Sep 3, 2026	11-50	13 contacts →
	Exact match “Cyber Security for Digital Health Companies From startups to enterprises, navigating security requirements in digital health is difficult.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19	Socguardians LTD	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	12 contacts →
	Exact match “Our mission at SOCGuardians is to empower organizations to operate confidently in a digital world by providing cutting-edge cybersecurity services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20	Xentra	Exact match	Leeds, United KingdomHQ recorded Sep 3, 2026	11-50	10 contacts →
	Exact match “From cyber security, through to safeguarding and compliance, we provide digital security solutions perfectly designed to suit any requirement.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21	Simplified Solutions	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	10 contacts →
	Exact match “Simplified Solutions protects organisation’s most valuable asset – Financial, Customer, Employee and Transactional Data.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
22	Medicare Network	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	7 contacts →
	Exact match “Medicare Network is a niche, agile cybersecurity and risk management company offering a range of industry-leading and advanced solutions that combines human intelligence…” Recorded in the RevenueBase company graph · Sep 3, 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 “healthcare 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 22 of 115 healthcare cybersecurity companies based in the United Kingdom

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Healthcare cybersecurity companies based in the United Kingdom at a glance

As of Sep 3, 2026

50.7%Verified-email coverage

14.1%Mobile-number coverage

65.1Average contacts per company

11-50Median size (employees)

40.0%Largest-city concentration · London

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

30631–60

2,17461–90

1,21790–180

99180+

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 “healthcare 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 3,796 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 3, 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.

Healthcare cybersecurity companies by metro

Healthcare cybersecurity companies in London46

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 “healthcare cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 115 company matches for healthcare 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?

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

Which city has the most healthcare cybersecurity companies?

London leads with 46 company records, followed by Cheltenham (6) and Bristol (3).

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 3,796 professional contacts with verified work emails tracked across these 115 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 3, 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.