Company lists · Data refreshed November 2026

Top 25 Security automation software companies based in the United Kingdom

RevenueBase identified 88 company matches for security automation software companies associated with the United Kingdom as of November 2026 and tracks 1,205 professional contacts across them, including 420 with verified work emails. London is the largest hub.

This list covers company matches for security automation software 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 November 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 Nov 5, 2026 How this list was built
88Companies
1,205Contacts tracked
420Verified emails
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The 25 largest security automation software companies based in the United Kingdom

Ranked by team size
Top 25 of 88 company matches for security automation software companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200108 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchPortsmouth, United KingdomHQ recorded Nov 5, 202651-20046 contacts →

Exact match

“We are on a mission to simplify and scale cyber security by combining AI, automation, expert-led services, in a unified platform: giving every organisation, from MSPs to global…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20046 contacts →

Exact match

“SenseOn deploys alongside all of your existing tools, unifying them into a single investigation plane and augmenting your team with cross-domain correlation, analytics, and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchByfleet, United KingdomHQ recorded Nov 5, 2026n/a45 contacts →

Exact match

“We are specialist providers of professional security system solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchDublin, United KingdomHQ recorded Nov 5, 202611-5042 contacts →

Exact match

“We are a pure play IT security company, which allows us to focus solely on protecting your business from cyber threats.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchEdinburgh, United KingdomHQ recorded Nov 5, 2026201-50036 contacts →

Exact match

“We are Adarma, independent leaders in detection and response services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchCardiff, United KingdomHQ recorded Nov 5, 202651-20034 contacts →

Exact match

“Ceaton Security Services Ltd is based in South Wales, specialising in the design, installation, service & maintenance of Automation, Fire, Fire Door & Security Systems - not…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchFarnborough, United KingdomHQ recorded Nov 5, 202611-5025 contacts →

Exact match

“BlueFort is the UK’s leading independent Security Solutions Partner (SSP).”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSouthwark, United KingdomHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Award-winning BlockAPT is redefining cybersecurity with an AI-powered, autonomous, self-defending platform built to protect modern digital ecosystems at speed and scale.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchYork, United KingdomHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“Monitor Computer Systems, established in 1984, is a pioneer in security automation software, delivering innovative solutions to monitoring centers and security operations…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchMansfield, United KingdomHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“Webeye Limited, alongside Webeye Corp in the USA, is a leading provider of advanced security solutions for the professional security industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNorthamptonshire, United KingdomHQ recorded Nov 5, 202651-20014 contacts →

Exact match

“Securing What Matters.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchGloucester, United KingdomHQ recorded Nov 5, 202611-509 contacts →

Exact match

“ASGuk has been delivering integrated security, safety and automation solutions since 1989 - working with some of the most demanding organisations across healthcare, facilities…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchDartford, United KingdomHQ recorded Nov 5, 20261-109 contacts →

Exact match

“Perimeter Solutions Automation provide Automation, Access Control and Security Systems to both the residential and commercial marketplace, including construction sites.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchCaterham, United KingdomHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Since Y3K has been at the forefront of technological advancements, propelling innovation forward.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 5, 20261-107 contacts →

Exact match

“Zerodai is the productivity platform for cyber security teams.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 5, 20261-107 contacts →

Exact match

“CounterShadow is redefining the cybersecurity landscape as the future of agentic cybersecurity.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 5, 20261-107 contacts →

Exact match

“Priam Cyber AI builds AVA (Advanced Virtual Analyst), an AI SOC platform that investigates alerts the way an analyst would.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchRedditch, United KingdomHQ recorded Nov 5, 202611-507 contacts →

Exact match

“MYDIS is a UK-based security and software firm reimagining how physical and digital systems work together to protect, optimise, and empower high-risk environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchReading, United KingdomHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Rebasoft is a UK based Software and Services company, founded in 2009 and produces software solutions for the Cyber Security market space.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchGrimsby, United KingdomHQ recorded Nov 5, 202611-506 contacts →

Exact match

“Abatis Fire & Security is an company with NSI and BAFE Approvals providing design, installation, maintenance and repair to all types of Fire Alarms, Security systems, Fire…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchKingston Upon Thames, United KingdomHQ recorded Nov 5, 202611-506 contacts →

Exact match

“MRFS Group has been at the forefront of the automation revolution for more than 30 years, designing and installing stand-alone and integrated smart, safe and secure audio-visual…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchCambridge, United KingdomHQ recorded Nov 5, 20261-104 contacts →

Exact match

“We are committed to substantially improving your cybersecurity integration experience, even in systems with complex interactions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 5, 20261-104 contacts →

Exact match

“Automate the boring.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 88 security automation software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security automation software companies based in the United Kingdom at a glance

As of Nov 5, 2026
34.9%Verified-email coverage
13.7Average contacts per company
1-10Median size (employees)
35.2%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
28
51-200
8
201-500
1
501-1,000
2

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 88 companies.

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 “security automation 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 420 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 November 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.

Security automation software companies by metro

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

How many security automation software companies are there based in the United Kingdom?

RevenueBase identified 88 company matches for security automation software companies associated with the United Kingdom as of November 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?

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

Which city has the most security automation software companies?

London leads with 31 company records, followed by Grimsby (2) and Ashton Under Lyne (1).

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 420 professional contacts with verified work emails tracked across these 88 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 November 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.