Company lists · Data refreshed September 2026

Top 25 Alarm system manufacturers based in the United Kingdom

Name: Alarm system manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 925 companies tracked

RevenueBase identified 925 company matches for alarm system manufacturers associated with the United Kingdom as of September 2026 and tracks 12,026 professional contacts across them, including 4,441 with verified work emails. London is the largest hub.

This list covers company matches for alarm system manufacturers 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 30, 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 30, 2026 How this list was built

925Companies

12,026Contacts tracked

4,441Verified emails

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The 25 largest alarm system manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 925 company matches for alarm system manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Chubb Fire & Security	Exact match	Staines, United KingdomHQ recorded Sep 30, 2026	10001+	6,169 contacts →
	Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Marlowe Fire & Security	Exact match	Manchester, United KingdomHQ recorded Sep 30, 2026	501-1,000	389 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 30, 2026 · View company records in RevenueBase
3	Global Fire & Security Systems	Exact match	Nottingham, United KingdomHQ recorded Sep 30, 2026	51-200	119 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 30, 2026 · View company records in RevenueBase
4	Senseco Systems Limited	Exact match	Gillingham, United KingdomHQ recorded Sep 30, 2026	201-500	107 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 30, 2026 · View company records in RevenueBase
5	Scutum UK	Exact match	Chertsey, United KingdomHQ recorded Sep 30, 2026	201-500	87 contacts →
	Exact match “Scutum Fire & Security Ltd.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	ABEL	Exact match	Leicester, United KingdomHQ recorded Sep 30, 2026	51-200	70 contacts →
	Exact match “With over 50 years’ experience in the security industry, Abel has grown to become one of the UK’s largest privately owned providers of electronic security systems.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Alertsystems LTD	Exact match	Trowbridge, United KingdomHQ recorded Sep 30, 2026	51-200	61 contacts →
	Exact match “AlertSystems specialise in the design, installation, service, and maintenance of commercial electronic security and fire safety systems.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Logic Fire And Security	Exact match	Knaresborough, United KingdomHQ recorded Sep 30, 2026	11-50	55 contacts →
	Exact match “At Logic Fire and Security we design, supply, install, commission and maintain fire detection systems and electronic security systems throughout the UK.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Connelly Security Systems LTD CSS LTD	Exact match	Glasgow, United KingdomHQ recorded Sep 30, 2026	51-200	49 contacts →
	Exact match “CSS is Scotland’s leading supplier and installer of domestic and commercial intruder and fire alarm systems.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Absolute Fire & Security Systems Limited	Exact match	Godalming, United KingdomHQ recorded Sep 30, 2026	11-50	40 contacts →
	Exact match “We are passionate about protecting the things that are important to our customers - their people or family, their properties, their possessions/contents and equipment.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Simplisafe UK	Exact match	Manchester, United KingdomHQ recorded Sep 30, 2026	11-50	36 contacts →
	Exact match “Being safe should be simple.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Rosse Systems	Exact match	Shipley, United KingdomHQ recorded Sep 30, 2026	11-50	36 contacts →
	Exact match “Rosse Systems specialises in Active Fire and Security Systems.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Orisec LTD	Exact match	Haslingden, United KingdomHQ recorded Sep 30, 2026	11-50	34 contacts →
	Exact match “Intruder alarm products designed & manufactured in the United Kingdom for the professional installer.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Ceaton Security Services Limited	Exact match	Cardiff, United KingdomHQ recorded Sep 30, 2026	51-200	31 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 · Sep 30, 2026 · View company records in RevenueBase
15	Alert Alarms Family-Run Security Specialists Protecting Homes & Businesses Since 1982	Exact match	Redditch, United KingdomHQ recorded Sep 30, 2026	1-10	28 contacts →
	Exact match “Protecting homes and businesses since 1982.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Unique Fire And Security LTD	Exact match	Poole, United KingdomHQ recorded Sep 30, 2026	11-50	28 contacts →
	Exact match “Based on the south coast, with coverage across Dorset, Hampshire and surrounding areas, Unique Fire & Security has many years of experience in the fire protection and property…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	KBO Fire & Security	Exact match	Camberley, United KingdomHQ recorded Sep 30, 2026	51-200	27 contacts →
	Exact match “For over 30 years, we’ve been making life more secure for home owners and businesses across London, Surrey, Hampshire and the surrounding counties.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Pyrocel Fire And Security Limited	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Sep 30, 2026	51-200	27 contacts →
	Exact match “Pyrocel Ltd provides the following state of the art electronic products and services: • Fire Detection & Alarm Systems • Security Systems (Intruder, CCTV & Access) • Assistive…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Gbsg LTD	Exact match	Spalding, United KingdomHQ recorded Sep 30, 2026	51-200	26 contacts →
	Exact match “For over 40 years, GBSG Ltd has been a trusted leader in commercial security and fire protection, delivering complete, end-to-end solutions that safeguard people, property, and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Building Protection Systems	Exact match	Belfast, United KingdomHQ recorded Sep 30, 2026	11-50	25 contacts →
	Exact match “We provide both New Build Solutions and Maintenance Contracts for companies throughout the UK & Ireland.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Safety Technology International LTD	Exact match	Bromsgrove, United KingdomHQ recorded Sep 30, 2026	11-50	25 contacts →
	Exact match “Over 40 years of protecting the things that protects you!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	WRS Solutions	Exact match	Mexborough, United KingdomHQ recorded Sep 30, 2026	11-50	25 contacts →
	Exact match “At WRS Solutions, we specialise in delivering tailored electronic security systems that provide real peace of mind.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Link Integrated Security Solutions Limited	Exact match	Mansfield, United KingdomHQ recorded Sep 30, 2026	11-50	25 contacts →
	Exact match “Security and Investigations company” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	APS Security & Fire	Exact match	Nottingham, United KingdomHQ recorded Sep 30, 2026	11-50	24 contacts →
	Exact match “part of the Obsequio Group APS Security & Fire is an NSI Gold approved company with over 20 years of experience in the fire and security industry.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Realm Fire & Security LTD	Exact match	Aberdeen, United KingdomHQ recorded Sep 30, 2026	11-50	23 contacts →
	Exact match “Realm Fire and Security Ltd is an independent company operating locally in Aberdeen and the surrounding area.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “alarm system manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 925 alarm system manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,441 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Alarm system manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

36.9%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

8.9%Largest-city concentration · London

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

547

11-50

307

51-200

201-500

501-1,000

1,001-5,000

10001+

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 925 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 “alarm system manufacturers” 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 4,441 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 30, 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.

Alarm system manufacturers by metro

Alarm system manufacturers in London82

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 “alarm system manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many alarm system manufacturers are there based in the United Kingdom?

RevenueBase identified 925 company matches for alarm system manufacturers 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?

Chubb Fire & Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most alarm system manufacturers?

London leads with 82 company records, followed by Manchester (19) and Leicester (15).

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 4,441 professional contacts with verified work emails tracked across these 925 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 30, 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.