Company lists · Data refreshed September 2026

Top 25 Vulnerability management platforms based in the United Kingdom

RevenueBase identified 63 vulnerability management platforms headquartered in the United Kingdom as of September 2026 and tracks 816 professional contacts across them, including 298 with verified work emails. London is the largest hub.

This list covers vulnerability management platforms 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 14, 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 14, 2026 86% judged on-target in blind review
63Companies
816Contacts tracked
298Verified emails
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The 25 largest vulnerability management platforms based in the United Kingdom

Ranked by team size
Top 25 of 63 vulnerability management platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to vulnerability management platforms: 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
1Partial evidenceLeeds, United KingdomHQ checked Sep 14, 202651-20099 contacts →

Partial evidence

“AppCheck is a Complete Enterprise Security Testing Solution that provides up to the minute vulnerability coverage for your entire estate.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 14, 202651-20088 contacts →

Indirect evidence

“Dedicated to securing the networks society depends on.”

Source: RevenueBase Database · checked Sep 14, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 14, 202651-20061 contacts →

Strong evidence

“Intruder's continuous exposure management platform helps security, IT, and engineering teams stop breaches before they start.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 14, 202611-5041 contacts →

Indirect evidence

“Know what’s protected and gain a trusted view of your endpoints.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceCrawley, United KingdomHQ checked Sep 14, 202611-5035 contacts →

Indirect evidence

“ERGOS is an award-winning IT Managed Service Provider.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 14, 20261-1030 contacts →

Indirect evidence

“SnapSec is a cybersecurity company specializing in centralized application security operations.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 14, 20261-1016 contacts →

Partial evidence

“VulnHero is an AI-driven continuous full-stack offensive security platform that helps teams see what scanners miss and focus on exploitable risk first.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceAbingdon, United KingdomHQ checked Sep 14, 202611-5015 contacts →

Indirect evidence

“Bringing the world #PositiveSecurity to build a safer, more secure world where more things go right.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 14, 202651-20015 contacts →

Indirect evidence

“Runecast Solutions Ltd.”

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 14, 202611-5015 contacts →

Partial evidence

“is an ISO 9001:2015 and ISO/IEC 27001:2022 certified, DPIIT-recognized cybersecurity company delivering structured External Vulnerability Assessment & Penetration Testing (VAPT)…”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

“ResilientX Security is a fast-growing Cyber Security company that helps organizations of all sizes identify, quantify and manage their cyber risks and cyber exposure.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceLeeds, United KingdomHQ checked Sep 14, 202611-5011 contacts →

Strong evidence

“DarkInvader is an External Attack Surface Management (EASM) platform that provides continuous visibility across all internet-facing assets.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceBath, United KingdomHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“At Mobius Binary we care about your reputation and the loss that could result from violating your digital boundaries.”

Source: RevenueBase Database · checked Sep 14, 2026
14Strong evidenceWinchester, United KingdomHQ checked Sep 14, 20261-109 contacts →

Strong evidence

“Our world-class Managed SOC provides comprehensive vulnerability management, security monitoring, and penetration testing presented through a single dashboard.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceAylesbury, United KingdomHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“Kelltron Consulting Services is a globally recognized cybersecurity consulting firm with a strong presence in the United Kingdom, United States, and India.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceMaidenhead, United KingdomHQ checked Sep 14, 202611-505 contacts →

Partial evidence

“Encore was established to solve challenges faced daily by security operations and management teams through designing world class solutions that provide near-real-time visibility…”

Source: RevenueBase Database · checked Sep 14, 2026
17Strong evidenceBrighton, United KingdomHQ checked Sep 14, 202611-505 contacts →

Strong evidence

“Informer's External Attack Surface Management (EASM) and Pen Testing platform help CISOs, CTOs and IT teams map external assets and identify vulnerabilities in real time so they…”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“Complus IT is a London based managed IT and cybersecurity company helping regulated and growing businesses run secure, resilient operations without the overhead of an in house…”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“We specialise in helping organisations identify security concerns and quantify the risks you may have across your assets, using Penetration Testing, Threat Simulation and…”

Source: RevenueBase Database · checked Sep 14, 2026
20Strong evidenceLeeds, United KingdomHQ checked Sep 14, 20261-103 contacts →

Strong evidence

“Clear Loop Security is a Vulnerability Management Solution vendor and a forward-looking cyber and information security consultancy, focused on the real challenges of protecting…”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceManchester, United KingdomHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Anchorsec advances cybersecurity by providing comprehensive and insightful security assessments.”

Source: RevenueBase Database · checked Sep 14, 2026
22Strong evidenceSouthend-On-Sea, United KingdomHQ checked Sep 14, 202611-502 contacts →

Strong evidence

“PalisadeSECURE - Cyber Security Operations PalisadeSECURE are a Global Cyber Security Operations company, delivering Cyber Security Operations, Vulnerability Management and User…”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceLondonderry, United KingdomHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Who we are.”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceChesterfield, United KingdomHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Cybersecurity isn’t just about technology-it’s about trust.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceSalisbury, United KingdomHQ checked Sep 14, 202611-501 contacts →

Partial evidence

“Our cyber security services are designed to identify technical vulnerabilities, assess your security controls, and improve them based on actionable recommendations.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 63 vulnerability management platforms based in the United Kingdom

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Vulnerability management platforms based in the United Kingdom at a glance

As of Sep 14, 2026
36.5%Verified-email coverage
13.0Average contacts per company
1-10Median size (employees)
42.9%Largest-city concentration · London
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
16
51-200
6
201-500
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 63 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 vulnerability management platforms, 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 “vulnerability management platforms”. 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 vulnerability management platforms), 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 vulnerability management platforms, 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, 298 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 14, 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.

Vulnerability management platforms by metro

  • Vulnerability management platforms in London27

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 vulnerability management platforms, 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 vulnerability management platforms are there based in the United Kingdom?

RevenueBase identified 63 vulnerability management platforms 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?

Appcheck LTD, headquartered in Leeds, tops this list with the largest team on record.

Which city has the most vulnerability management platforms?

London leads with 27 headquartered companies, followed by Leeds (3) and Manchester (2).

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 298 verified decision-maker contacts tracked across these 63 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 14, 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.