Company lists · Data refreshed September 2026

Top 25 Cyber threat intelligence software companies based in the United Kingdom

RevenueBase identified 448 cyber threat intelligence software companies headquartered in the United Kingdom as of September 2026 and tracks 20,279 professional contacts across them, including 9,197 with verified work emails. London is the largest hub.

This list covers cyber threat intelligence 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
448Companies
20,279Contacts tracked
9,197Verified emails
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The 25 largest cyber threat intelligence software companies based in the United Kingdom

Ranked by team size
Top 25 of 448 cyber threat intelligence 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 cyber threat intelligence 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAbingdon, United KingdomHQ checked Sep 28, 20265,001-10,0004,925 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
2Indirect evidenceCambridge, United KingdomHQ checked Sep 28, 20261,001-5,0002,355 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
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,304 contacts →

Indirect evidence

“organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceCroydon, United KingdomHQ checked Sep 28, 2026501-1,000608 contacts →

Indirect evidence

“In a complex global landscape, leaders need accurate information and full context quickly.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000502 contacts →

Indirect evidence

“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.”

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500351 contacts →

Strong evidence

“S-RM is a global intelligence and cyber security consultancy.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceEdinburgh, United KingdomHQ checked Sep 28, 2026201-500297 contacts →

Partial evidence

“At Quorum Cyber, we're on a mission to help good people win.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500242 contacts →

Partial evidence

“Obrela Security Industries is a global provider of cyber security services.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500238 contacts →

Partial evidence

“Signal AI is a leading reputation and risk intelligence company helping business leaders make sense of the outside world.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200187 contacts →

Partial evidence

“Headquartered in London U.K, Gorilla is a global solution provider in Security Intelligence, Network Intelligence, Business Intelligence and IoT technology.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200177 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 28, 202651-200168 contacts →

Partial evidence

“Sapphire delivers comprehensive cyber solutions tailored to your needs, spanning across consultancy, managed services, IT/OT and beyond.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceThatcham, United KingdomHQ checked Sep 28, 202651-200159 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceCambridge, United KingdomHQ checked Sep 28, 202651-200141 contacts →

Strong evidence

“i2 is the only intelligence analysis software that arms analysts with the advanced fusion and multi-dimensional analytics they need to create actionable intelligence to detect…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceFleet, United KingdomHQ checked Sep 28, 202651-200125 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200123 contacts →

Indirect evidence

“Bulletproof is now part of WorkNest Secure.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200109 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20088 contacts →

Indirect evidence

“Dedicated to securing the networks society depends on.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20084 contacts →

Indirect evidence

“Cybersecurity should be simple.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSwindon, United KingdomHQ checked Sep 28, 202651-20080 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceWaterloo, United KingdomHQ checked Sep 28, 202651-20080 contacts →

Partial evidence

“At Reliance Cyber, we believe in truly partnering with our customers.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20078 contacts →

Indirect evidence

“Logically helps organizations make sense of complex information environments.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-20077 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-20068 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceBlandford, United KingdomHQ checked Sep 28, 202651-20068 contacts →

Partial evidence

“The organisations that run our world face relentless complexity and evolving threats.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 448 cyber threat intelligence software companies based in the United Kingdom

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Cyber threat intelligence software companies based in the United Kingdom at a glance

As of Sep 28, 2026
45.4%Verified-email coverage
45.3Average contacts per company
11-50Median size (employees)
49.8%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
205
11-50
151
51-200
65
201-500
14
501-1,000
5
1,001-5,000
5
5,001-10,000
2
10001+
1

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 448 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 cyber threat intelligence 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 “cyber threat intelligence 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 cyber threat intelligence 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 cyber threat intelligence 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, 9,197 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.

Cyber threat intelligence software companies by metro

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 cyber threat intelligence 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 cyber threat intelligence software companies are there based in the United Kingdom?

RevenueBase identified 448 cyber threat intelligence 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 cyber threat intelligence software companies?

London leads with 223 headquartered companies, followed by Manchester (18) and Birmingham (8).

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 9,197 verified decision-maker contacts tracked across these 448 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.

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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 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.