Company lists · Data refreshed November 2026

Top 24 Telecommunication security system suppliers based in the United Kingdom

RevenueBase identified 659 company matches for telecommunication security system suppliers associated with the United Kingdom as of November 2026 and tracks 7,861 professional contacts across them, including 2,773 with verified work emails. London is the largest hub.

This list covers company matches for telecommunication security system suppliers 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
659Companies
7,861Contacts tracked
2,773Verified emails
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The 24 largest telecommunication security system suppliers based in the United Kingdom

Ranked by team size
Top 24 of 659 company matches for telecommunication security system suppliers 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 matchBlackburn, United KingdomHQ recorded Nov 5, 2026n/a426 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBradford, United KingdomHQ recorded Nov 5, 2026501-1,000352 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchRomford, United KingdomHQ recorded Nov 5, 2026201-500203 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHaslingden, United KingdomHQ recorded Nov 5, 2026201-500193 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchBracknell, United KingdomHQ recorded Nov 5, 202651-200164 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchChalfont St Peter, United KingdomHQ recorded Nov 5, 202651-200149 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchRoyal Leamington Spa, United KingdomHQ recorded Nov 5, 2026201-500103 contacts →

Exact match

“Optilan is a leading independent security and communications systems integrator worldwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchNorthampton, United KingdomHQ recorded Nov 5, 202651-20083 contacts →

Exact match

“BauWatch secures your site and assets with rapidly deployed mobile video surveillance systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLeicester, United KingdomHQ recorded Nov 5, 202651-20074 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchIrvine, United KingdomHQ recorded Nov 5, 202651-20070 contacts →

Exact match

“Providing World-class Communication Network and Security Infrastructure Solutions Novo Technologies is dedicated to projects excellence, Novo Technologies undertakes end to end…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchOswestry, United KingdomHQ recorded Nov 5, 202651-20063 contacts →

Exact match

“SNO is a specialist network operations and security partner, helping organisations design, secure, and manage the networks they rely on every day.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchTrowbridge, United KingdomHQ recorded Nov 5, 202651-20060 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 · Nov 5, 2026 · View company records in RevenueBase
13Exact matchIlkley, United KingdomHQ recorded Nov 5, 202611-5059 contacts →

Exact match

“Talk Straight has been looking after the communications and network security for thousands of public and private sector organisations since 2007.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBrighouse, United KingdomHQ recorded Nov 5, 202651-20058 contacts →

Exact match

“Business: It’s all about connecting people.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchHemel Hempstead, United KingdomHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“NACD Ltd has been established for over 25 years and are industry-leading UK and European specialists in manufacturing, distribution, design, installation, commissioning and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMiddlesbrough, United KingdomHQ recorded Nov 5, 202651-20054 contacts →

Exact match

“Dynamic CCTV has been established since 1994 and is a leading trade-only supplier to the security industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBedford, United KingdomHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“Established in 1990, Ace Fire & Security is an end-to-end security, occupant safety, systems integration, monitoring and fire solutions specialist for commercial, industrial site…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20050 contacts →

Exact match

“Electranet’s mission is to be a preferred partner to the public and private sectors, bringing competitively priced, secure and innovative solutions to the market.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20049 contacts →

Exact match

“Established in Custom Intelligent Security is a technology driven ISO27001 & NSi Gold Accredited independent electronic security specialist with a proven track record of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBexleyheath, United KingdomHQ recorded Nov 5, 202651-20046 contacts →

Exact match

“Since 1987 Optyma Integrated Security Systems have been successfully delivering complex integrated security projects using the latest technology.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchIslington, United KingdomHQ recorded Nov 5, 202651-20044 contacts →

Exact match

“We are an independent leader in physical security, guarding, communications, and life safety solutions, with primary offices in London and Glasgow.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchWolverhampton, United KingdomHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“ATEC are here to make your business safe, giving you the confidence in the security of your business so It can thrive every day, now and long into the future.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“Universal Security Systems Limited is a specialist provider of installation and maintenance services for all types of security systems including Access Control, Closed Circuit…”

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

Showing 24 of 659 telecommunication security system suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,773 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunication security system suppliers based in the United Kingdom at a glance

As of Nov 5, 2026
35.3%Verified-email coverage
11.9Average contacts per company
1-10Median size (employees)
12.3%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
338
11-50
222
51-200
67
201-500
8
501-1,000
4
1,001-5,000
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 659 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 “telecommunication security system suppliers” 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 2,773 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.

Telecommunication security system suppliers 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 “telecommunication security system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunication security system suppliers are there based in the United Kingdom?

RevenueBase identified 659 company matches for telecommunication security system suppliers 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?

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

Which city has the most telecommunication security system suppliers?

London leads with 81 company records, followed by Birmingham (18) and Manchester (14).

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 2,773 professional contacts with verified work emails tracked across these 659 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.