Company lists · Data refreshed September 2026

Top 25 Building management system security companies based in the United Kingdom

RevenueBase identified 1,603 company matches for building management system security companies associated with the United Kingdom as of September 2026 and tracks 108,650 professional contacts across them, including 8,960 with verified work emails. London is the largest hub.

This list covers company matches for building management system security 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 27, 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 27, 2026 How this list was built
1,603Companies
108,650Contacts tracked
8,960Verified emails
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The 25 largest building management system security companies based in the United Kingdom

Ranked by team size
Top 25 of 1,603 company matches for building management system security companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 202610001+79,699 contacts →

Exact match

“G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchStaines, United KingdomHQ recorded Sep 27, 202610001+6,169 contacts →

Exact match

“Making the world a safer place.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchNorthampton, United KingdomHQ recorded Sep 27, 202610001+1,508 contacts →

Exact match

“We are an intelligence-led security business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,000919 contacts →

Exact match

“CIS Security is an independent security company equipped to help customers to solve the complex challenges in today’s digital, connected and regulated business world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000502 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchCirencester, United KingdomHQ recorded Sep 27, 20261,001-5,000422 contacts →

Exact match

“Unlike traditional security providers, we're redefining what protection means in today's world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchBlackburn, United KingdomHQ recorded Sep 27, 2026n/a393 contacts →

Exact match

“At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchManchester, United KingdomHQ recorded Sep 27, 2026501-1,000389 contacts →

Exact match

“Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBradford, United KingdomHQ recorded Sep 27, 2026501-1,000326 contacts →

Exact match

“Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLeeds, United KingdomHQ recorded Sep 27, 2026501-1,000246 contacts →

Exact match

“First Response Group (FRG) is one of the leading security, risk and FM providers in the UK delivering manned security, technology solutions, building management and vacant…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchRomford, United KingdomHQ recorded Sep 27, 2026201-500200 contacts →

Exact match

“OpenView Security Solutions is the UK’S largest privately owned independent security company and provides unique, innovative and technologically excellent solutions to meet…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchTewkesbury, United KingdomHQ recorded Sep 27, 202651-200175 contacts →

Exact match

“ABEC is one of the leading independent Building Management System (BMS) and Electrical Power Monitoring System (EPMS) specialists.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchHaslingden, United KingdomHQ recorded Sep 27, 2026201-500170 contacts →

Exact match

“Looking after the things people care about, wherever they are’.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSidcup, United KingdomHQ recorded Sep 27, 2026201-500166 contacts →

Exact match

“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200159 contacts →

Exact match

“QCIC is an award-winning global engineering firm specialising in designing, building and running security systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchBracknell, United KingdomHQ recorded Sep 27, 202651-200157 contacts →

Exact match

“Norbain is a leading UK security distributor, covering video surveillance, access control & intruder detection solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchLeeds, United KingdomHQ recorded Sep 27, 202651-200157 contacts →

Exact match

“A premier provider of security products and services across England, Gough & Kelly was formed in 1988 to influence and inspire the security and electrical marketplace by providing…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchGlasgow, United KingdomHQ recorded Sep 27, 202651-200153 contacts →

Exact match

“Pointer Limited We are a Specialist Fire and Security Services Integrator.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchChalfont St Peter, United KingdomHQ recorded Sep 27, 202651-200145 contacts →

Exact match

“Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200137 contacts →

Exact match

“The Keyholding Company are a tech-enabled mobile security services company, specialising in alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchFleet, United KingdomHQ recorded Sep 27, 202651-200125 contacts →

Exact match

“KHIPU Networks is an award winning international Cyber Security Company delivering a wide range of network, wireless and security solutions, technologies and services across…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchNottingham, United KingdomHQ recorded Sep 27, 202651-200119 contacts →

Exact match

“Global Fire and Security Systems are market leaders in providing quality product solutions to services through the Fire and Security market place nationwide.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchWatford, United KingdomHQ recorded Sep 27, 202651-200116 contacts →

Exact match

“TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchHorsham, United KingdomHQ recorded Sep 27, 2026501-1,000113 contacts →

Exact match

“Trend is one of the world's leading Building Energy Management Systems manufacturers, with a worldwide distribution and support network covering over 50 countries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchGillingham, United KingdomHQ recorded Sep 27, 2026201-500107 contacts →

Exact match

“Senseco Systems Limited is the UK’s largest and highest accredited independent fire and security company, delivering integrated life safety and security solutions across complex…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 1,603 building management system security companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,960 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building management system security companies based in the United Kingdom at a glance

As of Sep 27, 2026
8.2%Verified-email coverage
67.8Average contacts per company
1-10Median size (employees)
14.6%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
797
11-50
528
51-200
187
201-500
42
501-1,000
19
1,001-5,000
7
5,001-10,000
1
10001+
5

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 1,603 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 “building management system security 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 8,960 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 27, 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 “building management system security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building management system security companies are there based in the United Kingdom?

RevenueBase identified 1,603 company matches for building management system security 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?

G4s tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most building management system security companies?

London leads with 234 company records, followed by Manchester (33) and Birmingham (27).

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 8,960 professional contacts with verified work emails tracked across these 1,603 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,603 building management system security companies based in the United Kingdom. Start with a free account, no credit card.

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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.