Company lists · Data refreshed September 2026

Top 25 Access control system companies based in the United Kingdom

Name: Access control system companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 710 companies tracked

RevenueBase identified 710 access control system companies headquartered in the United Kingdom as of September 2026 and tracks 5,618 professional contacts across them, including 1,849 with verified work emails. London is the largest hub.

This list covers access control system companies headquartered in the 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 19, 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 19, 2026 86% judged on-target in blind review

710Companies

5,618Contacts tracked

1,849Verified emails

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The 25 largest access control system companies based in the United Kingdom

Ranked by team size

Top 25 of 710 access control system companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to access control system 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	Kings Secure Technologies	Partial evidence	Bradford, United KingdomHQ checked Sep 19, 2026	501-1,000	326 contacts →
	Partial evidence “Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Source: RevenueBase Database · checked Sep 19, 2026
2	Paxton Access LTD	Indirect evidence	Brighton, United KingdomHQ checked Sep 19, 2026	201-500	255 contacts →
	Indirect evidence “With 40 years of experience, Paxton is a company passionate about technology.” Source: RevenueBase Database · checked Sep 19, 2026
3	Frontline Security Solutions	Strong evidence	Chalfont St Peter, United KingdomHQ checked Sep 19, 2026	51-200	145 contacts →
	Strong evidence “Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Source: RevenueBase Database · checked Sep 19, 2026
4	Total Security Protection LTD	Partial evidence	Watford, United KingdomHQ checked Sep 19, 2026	51-200	116 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
5	Biosite Systems LTD	Strong evidence	Solihull, United KingdomHQ checked Sep 19, 2026	51-200	111 contacts →
	Strong evidence “Biosite is a market leader and innovator in biometric access control and workforce management software solutions for the construction industry.” Source: RevenueBase Database · checked Sep 19, 2026
6	Croma Security Solutions Group PLC Cssg	Indirect evidence	Whiteley, United KingdomHQ checked Sep 19, 2026	501-1,000	87 contacts →
	Indirect evidence “Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.” Source: RevenueBase Database · checked Sep 19, 2026
7	Abloy UK	Indirect evidence	Willenhall, United KingdomHQ checked Sep 19, 2026	11-50	62 contacts →
	Indirect evidence “ABLOY UK are the UK’s leading experts on high quality door locking and functionality.” Source: RevenueBase Database · checked Sep 19, 2026
8	WLS	Indirect evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
9	Custom Intelligent Security	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	51 contacts →
	Indirect evidence “Established in Custom Intelligent Security is a technology driven ISO27001 & NSi Gold Accredited independent electronic security specialist with a proven track record of…” Source: RevenueBase Database · checked Sep 19, 2026
10	Meesons	Indirect evidence	Skipton, United KingdomHQ checked Sep 19, 2026	51-200	48 contacts →
	Indirect evidence “Reimagining how people interact with spaces.” Source: RevenueBase Database · checked Sep 19, 2026
11	Atec Security	Indirect evidence	Wolverhampton, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
12	The Chris Lewis Group	Strong evidence	Oxford, United KingdomHQ checked Sep 19, 2026	51-200	40 contacts →
	Strong evidence “Whether installing fire, security, or access control systems - or transforming your home using the latest smart technology - Chris Lewis Group can deliver exceptional solutions to…” Source: RevenueBase Database · checked Sep 19, 2026
13	Universal Security Systems LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	39 contacts →
	Strong 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 19, 2026
14	Clearview Communications	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 19, 2026	51-200	38 contacts →
	Indirect evidence “Since 1996, ClearView has been meeting some of the world's most demanding security requirements by utilising our experience in design, manufacture, installation and service of the…” Source: RevenueBase Database · checked Sep 19, 2026
15	Videxuk	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	36 contacts →
	Strong evidence “We are the experts in door entry and access control and have been supplying and manufacturing systems for 40 years.” Source: RevenueBase Database · checked Sep 19, 2026
16	Pafi LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “Pafi Ltd, Was formed in 1995 to design, install and maintain integrated security solutions for the commercial market.” Source: RevenueBase Database · checked Sep 19, 2026
17	Lincoln Security	Indirect evidence	Lincoln, United KingdomHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Founded in 1974, Lincoln Security Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
18	Expert Access Solutions LTD	Partial evidence	Stevenage, United KingdomHQ checked Sep 19, 2026	51-200	31 contacts →
	Partial evidence “From the same people who managed your automatic entrance systems, we are the new southern-based service partner of dormakaba, dedicated to meeting your needs as part of the…” Source: RevenueBase Database · checked Sep 19, 2026
19	Ceaton Security Services Limited	Partial evidence	Cardiff, United KingdomHQ checked Sep 19, 2026	51-200	31 contacts →
	Partial evidence “Ceaton Security Services Ltd is based in South Wales, specialising in the design, installation, service & maintenance of Automation, Fire, Fire Door & Security Systems - not…” Source: RevenueBase Database · checked Sep 19, 2026
20	Link Cctv Systems	Partial evidence	Stevenage, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “When your CCTV system is business-critical, Link CCTV is the technology partner your business needs.” Source: RevenueBase Database · checked Sep 19, 2026
21	Inner Range Emea	Strong evidence	Reading, United KingdomHQ checked Sep 19, 2026	51-200	28 contacts →
	Strong evidence “Inner Range is a manufacturer of integrated Video, Access Control and Security solutions.” Source: RevenueBase Database · checked Sep 19, 2026
22	Tdsi By Hirsch	Strong evidence	Poole, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “TDSi delivers peace of mind through the provision of Access Control solutions that protect and secure your buildings, assets and people.” Source: RevenueBase Database · checked Sep 19, 2026
23	AGS Tech LTD	Strong evidence	Blackburn, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “Established in 1993 AGS Tech are experts in installation and maintenance of: Access Control Door Entry Warden Call Automatic Powered Doors CCTV Fire Alarms Gates and Barriers.” Source: RevenueBase Database · checked Sep 19, 2026
24	Elite Security UK	Strong evidence	Stapleford Abbots, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “All security solutions you need in one click- speak to us for access systems, CCTV, door and window installation advice.” Source: RevenueBase Database · checked Sep 19, 2026
25	DS Security Group LTD	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	27 contacts →
	Strong evidence “CCTV and Access Control Service and installation specialists Established in 1993 DS Security prides itself on customer service.” Source: RevenueBase Database · checked Sep 19, 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: access control system 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 access control system companies.
Partial evidence: Its own public description names part of access control system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name access control system 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 710 access control system companies based in the United Kingdom

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Access control system companies based in the United Kingdom at a glance

As of Sep 19, 2026

32.9%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

11.1%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

389

11-50

254

51-200

201-500

501-1,000

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 710 companies.

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 access control system 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 the United Kingdom whose own description of what they do matches “access control system 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 access control system 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 access control system companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,849 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 19, 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.

Access control system companies by metro

Access control system companies in London79

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 access control system 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 access control system companies are there based in the United Kingdom?

RevenueBase identified 710 access control system companies headquartered in the 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?

Kings Secure Technologies, headquartered in Bradford, tops this list with the largest team on record.

Which city has the most access control system companies?

London leads with 79 headquartered companies, followed by Birmingham (11) and Manchester (11).

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 1,849 verified decision-maker contacts tracked across these 710 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 19, 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.