Company lists · Data refreshed September 2026

Top 21 Threat detection software companies based in London, United Kingdom

RevenueBase identified 63 company matches for threat detection software companies associated with London, United Kingdom as of September 2026 and tracks 824 professional contacts across them, including 183 with verified work emails and 56 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for threat detection software companies associated with London, 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 13, 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 13, 2026 How this list was built
63Companies
824Contacts tracked
183Verified emails
56Mobile numbers
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The 21 largest threat detection software companies based in London, United Kingdom

Ranked by team size
Top 21 of 63 company matches for threat detection software companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 13, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-200177 contacts →

Exact match

“Whether you’re a business or an individual, digital threats to your precious data and assets can come in any form - external or internal.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-200109 contacts →

Exact match

“Red Sift enables organizations to anticipate, respond to, and recover from cyber attacks while continuing to operate effectively.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-20088 contacts →

Exact match

“Dedicated to securing the networks society depends on.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-5036 contacts →

Exact match

“The future of IoT/OT security is here.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-20025 contacts →

Exact match

“Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-20024 contacts →

Exact match

“Nanjgel Solutions is focused on delivering the best IT security for businesses.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-5011 contacts →

Exact match

“Disclosure Cybersecurity Ltd is a specialist cyber security company, formed by professionals with extensive experience and wide exposure in the cyber security market.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-5010 contacts →

Exact match

“PC POWER INTERNATIONAL LTD is a computer & network security company based in the City, London, United Kingdom.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-508 contacts →

Exact match

“Cyberseer offers Advanced Threat Detection and a 24×7 Managed Security Service (MSS).”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-107 contacts →

Exact match

“Threat Protect is a vendor-agnostic cybersecurity, compliance and AI governance partner based in London, working with organisations across finance, legal, energy, pharma…”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-105 contacts →

Exact match

“Automate the boring.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 13, 202651-2003 contacts →

Exact match

“Grove unlocks business success by defending our customers with the most advanced cybersecurity solutions in the market place today.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-103 contacts →

Exact match

“Dark Taurus are an innovative UK based Cybersecurity Solutions and Advisory company at the forefront of Risk Prevention and Risk Management.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-103 contacts →

Exact match

“Cyberrock is a cybersecurity company making enterprise-grade protection accessible to small & medium sized businesses and remote workers.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“We are delighted to announce the acquisition of the industry leading PHALANX Clavisi, Cyber Security Platform PREVENT, DETECT, and RESPOND to Cyber Attacks”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-502 contacts →

Exact match

“Founded in 2017, Cansol is a Cyber Security company with office in London and Dubai.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“Seedata.io detect attackers by luring them to disclose their presence, turning their own techniques against them.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-102 contacts →

Exact match

“Essential Security is a unique company in that we offer a specialised and confidential service meeting your bespoke technological and communications requirements.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 13, 202611-501 contacts →

Exact match

“SOC.OS has joined the Sophos family!”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-101 contacts →

Exact match

“Alion4 is a leading provider of holistic enterprise-level IT security solutions.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 13, 20261-101 contacts →

Exact match

“Aegis Cyber is a London-based cyber security consultancy comprising of some of the best talent globally.”

Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase

Showing 21 of 63 threat detection software companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 183 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Threat detection software companies based in London, United Kingdom at a glance

As of Sep 13, 2026
22.2%Verified-email coverage
6.8%Mobile-number coverage
13.1Average contacts per company
11-50Median size (employees)
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
24
51-200
7
201-500
2
501-1,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 16.0d

Company record updated

Median 64.0d

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 London, United Kingdom whose business descriptions match “threat detection software 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 183 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 13, 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.

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

How many threat detection software companies are there based in London, United Kingdom?

RevenueBase identified 63 company matches for threat detection software companies associated with London, 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?

Deepcytes Cyber Labs UK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most threat detection software companies?

London leads the United Kingdom with 155 company records, followed by Manchester (9) and Edinburgh (7).

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 183 professional contacts with verified work emails tracked across these 63 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 13, 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.