Company lists · Data refreshed November 2026

Top 25 Supervisory signal unit suppliers based in the United Kingdom

RevenueBase identified 57 company matches for supervisory signal unit suppliers associated with the United Kingdom as of November 2026 and tracks 1,163 professional contacts across them, including 355 with verified work emails. London is the largest hub.

This list covers company matches for supervisory signal unit 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 2, 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 2, 2026 How this list was built
57Companies
1,163Contacts tracked
355Verified emails
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The 25 largest supervisory signal unit suppliers based in the United Kingdom

Ranked by team size
Top 25 of 57 company matches for supervisory signal unit suppliers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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 2, 2026n/a417 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 2, 2026 · View company records in RevenueBase
2Exact matchNottingham, United KingdomHQ recorded Nov 2, 202651-200126 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 · Nov 2, 2026 · View company records in RevenueBase
3Exact matchCardiff, United KingdomHQ recorded Nov 2, 202651-20096 contacts →

Exact match

“Formed in 2003 DVS has quickly established itself as one of Europe’s most successful multi-brand distributors of electronic surveillance and Fire products and Europe's Largest…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchSouthend-on-sea, United KingdomHQ recorded Nov 2, 202651-20059 contacts →

Exact match

“PFS Group Limited is an independently owned Fire & Security company that has been established since 1998.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchMiddlesbrough, United KingdomHQ recorded Nov 2, 202651-20049 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 2, 2026 · View company records in RevenueBase
6Exact matchRainham, United KingdomHQ recorded Nov 2, 202651-20041 contacts →

Exact match

“TechniFire Solutions Ltd are a truly independent fire life safety and security specialist service provider holding all statutory compliance certification, quality assurance and…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchStock, United KingdomHQ recorded Nov 2, 202611-5036 contacts →

Exact match

“Tired of poor service?”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchStevenage, United KingdomHQ recorded Nov 2, 202651-20029 contacts →

Exact match

“Cornerstone Fire & Security Group Cornerstone Fire & Security are specialists in the Design, Supply, Installation, ongoing support and maintenance of all types of Fire & Security…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchDinnington, United KingdomHQ recorded Nov 2, 202611-5026 contacts →

Exact match

“Established in 2005, Photuris is a trusted provider of fire protection, security systems, and communications solutions across the UK.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchOllerton, United KingdomHQ recorded Nov 2, 202611-5024 contacts →

Exact match

“Cannon Fire Protection has developed an excellent reputation within the fire protection industry, exclusively providing services to the trade.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchSouthampton, United KingdomHQ recorded Nov 2, 202611-5022 contacts →

Exact match

“ARC Fire Safety Ltd is a specialist BAFE and SSAIB approved fire alarm and security system installation and service provider.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchLeicester, United KingdomHQ recorded Nov 2, 202611-5014 contacts →

Exact match

“Defensor provides a complete service solution for all your commercial fire detection and alarm systems needs.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchBromsgrove, United KingdomHQ recorded Nov 2, 202651-20014 contacts →

Exact match

“Fire Safe Services Ltd began trading over 20 years ago, it was incorporated with the intention to share the co-directors wealth of fire alarm engineering expertise with a small…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchBath, United KingdomHQ recorded Nov 2, 202651-20014 contacts →

Exact match

“BWS Standfast are a leading independent provider of Fire and Security systems, working Nationally across the UK.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchSouth Croydon, United KingdomHQ recorded Nov 2, 202611-5010 contacts →

Exact match

“We carry out the supply, Design, Installation, Commissioning and Maintenance of Electrical and Electronic Fire & Security Systems ranging from Analogue Addressable Fire Alarms…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchFordingbridge, United KingdomHQ recorded Nov 2, 202611-509 contacts →

Exact match

“Detection Supplies is a national distributor of Fire Alarm and Ancillary Equipment.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchNottingham, United KingdomHQ recorded Nov 2, 20261-109 contacts →

Exact match

“Welcome to ISET UK Fire and Security Distribution Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchTunbridge Wells, United KingdomHQ recorded Nov 2, 202611-508 contacts →

Exact match

“Welcome to Firesense; one of the UK's leading independent distributors of fire detection, security and life safety products.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchWolverhampton, United KingdomHQ recorded Nov 2, 202651-2007 contacts →

Exact match

“Fireguard aims to be customer's first choice to safeguard from hazardous fires, by designing, developing the latest technology products with high quality and reliability.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchWelwyn Garden City, United KingdomHQ recorded Nov 2, 202611-506 contacts →

Exact match

“Installers and suppliers of Fire Alarms, Emergency Lights, CCTV, Access Control, Fire Extinguishers, Maintenance, Fire Training, Risk Assessments… Call us today on: 01707 326093.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchClevedon, United KingdomHQ recorded Nov 2, 20261-106 contacts →

Exact match

“Established in 2017, we are a team with a background of more than 75 years’ experience with industry-leading international companies.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchKent, United KingdomHQ recorded Nov 2, 202611-506 contacts →

Exact match

“We specialize in the installation & servicing of fire alarms, emergency lights and fire extinguishers.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchHalifax, United KingdomHQ recorded Nov 2, 20261-106 contacts →

Exact match

“About Us At Valley Fire & Security Ltd, we specialise in delivering innovative fire safety and security solutions tailored to meet the needs of businesses across the UK.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchWhitburn, United KingdomHQ recorded Nov 2, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchGreat Yarmouth, United KingdomHQ recorded Nov 2, 202611-504 contacts →

Exact match

“Phoenix Alarms and Safety Services Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 57 supervisory signal unit suppliers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 355 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Supervisory signal unit suppliers based in the United Kingdom at a glance

As of Nov 2, 2026
30.5%Verified-email coverage
20.4Average contacts per company
11-50Median size (employees)
8.8%Largest-city concentration · London
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
26
51-200
10
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 57 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 “supervisory signal unit 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 355 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 2, 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 “supervisory signal unit suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many supervisory signal unit suppliers are there based in the United Kingdom?

RevenueBase identified 57 company matches for supervisory signal unit 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 supervisory signal unit suppliers?

London leads with 5 company records, followed by Bromsgrove (2) and Glasgow (2).

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 355 professional contacts with verified work emails tracked across these 57 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 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 57 supervisory signal unit suppliers 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.