Company lists · Data refreshed September 2026

Top 25 Video surveillance companies based in London, United Kingdom

Name: Video surveillance companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 99 companies tracked

RevenueBase identified 99 video surveillance companies headquartered in London, United Kingdom as of September 2026 and tracks 651 professional contacts across them, including 157 with verified work emails and 38 with mobile numbers. London is the largest hub.

This list covers video surveillance companies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 13, 2026 86% judged on-target in blind review

99Companies

651Contacts tracked

157Verified emails

38Mobile numbers

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The 25 largest video surveillance companies based in London, United Kingdom

Ranked by team size

Top 25 of 99 video surveillance companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to video surveillance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	WLS	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	61 contacts →
	Indirect evidence “WLS (West London Security) has been providing security and solutions to London's homes and businesses for over 40 years.” Source: RevenueBase Database · checked Sep 13, 2026
2	Sensetech Systems LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	50 contacts →
	Indirect evidence “Sensetech Systems Ltd is an LPS1014 Accredited independent Fire Alarm, Security and Structured Data Cabling Company.” Source: RevenueBase Database · checked Sep 13, 2026
3	Electranet UK Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	49 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 13, 2026
4	Universal Security Systems LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	39 contacts →
	Indirect evidence “Universal Security Systems Limited is a specialist provider of installation and maintenance services for all types of security systems including Access Control, Closed Circuit…” Source: RevenueBase Database · checked Sep 13, 2026
5	DS Security Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Indirect evidence “CCTV and Access Control Service and installation specialists Established in 1993 DS Security prides itself on customer service.” Source: RevenueBase Database · checked Sep 13, 2026
6	Eocortex	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	22 contacts →
	Partial evidence “Eocortex is the global manufacturer of video management software.” Source: RevenueBase Database · checked Sep 13, 2026
7	Dennis Johns Service Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	20 contacts →
	Indirect evidence “The Dennis Johns Service Group is a forward thinking group of companies providing, Electrical, CCTV and Access Control, installation and maintenance contracting services.” Source: RevenueBase Database · checked Sep 13, 2026
8	Definitive Security Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	13 contacts →
	Indirect evidence “Definitive Security Solutions are an established designer, installer and maintainer of security, CCTV, intruder alarms, access control, power and data, and fire detection systems.” Source: RevenueBase Database · checked Sep 13, 2026
9	OPEM	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	13 contacts →
	Indirect evidence “We design, install and maintain CCTV and access control systems across a variety of commercial office sectors including coworking, serviced offices and traditional office design.” Source: RevenueBase Database · checked Sep 13, 2026
10	Securico Fire & Security	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
11	The Security Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	11 contacts →
	Indirect evidence “The Security Group delivers state-of-the-art security solutions to protect businesses, assets, and people.” Source: RevenueBase Database · checked Sep 13, 2026
12	LDN Security Solutions Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Indirect evidence “London-based security company specialising in the design, installation, service and maintenance of single domestic, multi-occupancy residential and commercial security systems.” Source: RevenueBase Database · checked Sep 13, 2026
13	Sats Security Services	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Indirect evidence “Welcome to Satellite Aerial Telephone Systems Ltd.” Source: RevenueBase Database · checked Sep 13, 2026
14	Ansador Fire & Security	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	6 contacts →
	Indirect evidence “Ansador Ltd has been privately owned since it was founded in 1982, providing system solutions to corporate and global clients across EMEA.” Source: RevenueBase Database · checked Sep 13, 2026
15	Bespoke Telecoms & Cctv	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Indirect evidence “Since 2010, Bespoke Telecoms have been providing some of the of the finest business and residential properties in the Country with the fastest possible internet services…” Source: RevenueBase Database · checked Sep 13, 2026
16	Intes UK	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Indirect evidence “London based security systems integrator presently engaged on some of the most existing London landmark buildings.” Source: RevenueBase Database · checked Sep 13, 2026
17	Sorair Technologies	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Partial evidence “Providing autonomous surveillance systems for industrial companies, and national security entities.” Source: RevenueBase Database · checked Sep 13, 2026
18	Zada Technology Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Indirect evidence “Welcome to Zada Technology - Unleashing Enhanced Security Solutions!” Source: RevenueBase Database · checked Sep 13, 2026
19	Controlled LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Indirect evidence “is a leading provider of integrated network security and fire detection solutions.” Source: RevenueBase Database · checked Sep 13, 2026
20	Ge4orce Fire & Security Solutions	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Indirect evidence “We provide CCTV, alarm systems, access control and fire safety solutions for residential and commercial properties across London.” Source: RevenueBase Database · checked Sep 13, 2026
21	UK Cctv Installations	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Indirect evidence “Your local cctv company with over 90 installation teams nationwide.” Source: RevenueBase Database · checked Sep 13, 2026
22	Tellivue	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	3 contacts →
	Indirect evidence “We design and install the latest technology in security cameras, access control, sensors and panic alarms.” Source: RevenueBase Database · checked Sep 13, 2026
23	G6s Security Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	3 contacts →
	Indirect evidence “G6S Security Limited is an Award Winning, Eco-friendly, Digital Security and Fire Installations and Services Company, delivering expertise in CCTV, Access Control, Intruder, Door…” Source: RevenueBase Database · checked Sep 13, 2026
24	Welwyn Garden Alarms LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
25	Boxing Clever Solutions	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Residential & Commercial Security Systems and Audio Visual Solutions.” Source: RevenueBase Database · checked Sep 13, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: video surveillance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names video surveillance companies.
Partial evidence: Its own public description names part of video surveillance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name video surveillance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 99 video surveillance companies based in London, United Kingdom

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Video surveillance companies based in London, United Kingdom at a glance

As of Sep 13, 2026

24.1%Verified-email coverage

5.8%Mobile-number coverage

6.6Average contacts per company

1-10Median size (employees)

118.2%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1330–30

2331–60

161–90

090–180

0180+

Company record updated

Median 79.0d

00–30

17831–60

36261–90

8490–180

27180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among video surveillance companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “video surveillance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names video surveillance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among video surveillance companies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 157 across the full list. 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 13, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Video surveillance companies by metro in the United Kingdom

Video surveillance companies in London117
Video surveillance companies in Manchester30

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names video surveillance companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many video surveillance companies are there based in London, United Kingdom?

RevenueBase identified 99 video surveillance companies headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

WLS, headquartered in London, tops this list with the largest team on record.

Which city has the most video surveillance companies?

London leads with 117 headquartered companies, followed by Manchester (30) and Birmingham (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 157 verified decision-maker contacts tracked across these 99 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 13, 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 Smart Search, 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.