Company lists · Data refreshed September 2026

Top 25 Cloud-based access control installers based in the United Kingdom

RevenueBase identified 117 cloud-based access control installers headquartered in the United Kingdom as of September 2026 and tracks 990 professional contacts across them, including 406 with verified work emails. London is the largest hub.

This list covers cloud-based access control installers 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 27, 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 27, 2026 86% judged on-target in blind review
117Companies
990Contacts tracked
406Verified emails
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The 25 largest cloud-based access control installers based in the United Kingdom

Ranked by team size
Top 25 of 117 cloud-based access control installers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cloud-based access control installers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBrighton, United KingdomHQ checked Sep 27, 2026201-500255 contacts →

Indirect evidence

“With 40 years of experience, Paxton is a company passionate about technology.”

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceOxford, United KingdomHQ checked Sep 27, 202651-20040 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 27, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20036 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 27, 2026
4Indirect evidenceStevenage, United KingdomHQ checked Sep 27, 202651-20031 contacts →

Indirect 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 27, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

“The open cloud platform for smarter physical security and safety.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidencePoole, United KingdomHQ checked Sep 27, 202611-5027 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 27, 2026
7Strong evidenceBlackburn, United KingdomHQ checked Sep 27, 202611-5027 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 27, 2026
8Strong evidenceLondon, United KingdomHQ checked Sep 27, 202651-20023 contacts →

Strong evidence

“Who are you… Most likely you are a Workplace or IT Professional with a lot on your plate including physical electronic security systems, such as - Access control - CCTV - Intruder…”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceNorthampton, United KingdomHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

“Bee Tee Alarms Ltd is a well established family owned business evolving from Dove Security, established in 1980 and taking its present identity in 1984.”

Source: RevenueBase Database · checked Sep 27, 2026
10Strong evidenceBorehamwood, United KingdomHQ checked Sep 27, 202651-20016 contacts →

Strong evidence

“NSP Security: The Gold Standard in Smart Access Solutions NSP Security is an industry-leading global provider of intelligent access control for the modern built environment.”

Source: RevenueBase Database · checked Sep 27, 2026
11Strong evidenceCirencester, United KingdomHQ checked Sep 27, 202611-5013 contacts →

Strong evidence

“With over 35 years of experience, Controlsoft is dedicated to designing and delivering secure, reliable and easy-to-use access control solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 27, 202611-5013 contacts →

Strong 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 27, 2026
13Partial evidenceDoncaster, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Partial evidence

“OLS are a UK based company specialising in transitioning customers to cloud based security solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceIlkeston, United KingdomHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“We are a highly experienced building services company based in Ilkeston Derbyshire in the East Midlands.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceRochdale, United KingdomHQ checked Sep 27, 202611-5010 contacts →

Strong evidence

“At CloudPass we bring together technologies such as access control, biometrics and ANPR into a unified cloud-based vehicle and workforce management solution.”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceTring, United KingdomHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“If you need to know exactly who's on-site, improve security and compliance, and make arrivals easier for everyone, you're in the right place.”

Source: RevenueBase Database · checked Sep 27, 2026
17Strong evidenceSunbury On Thames, United KingdomHQ checked Sep 27, 202611-509 contacts →

Strong evidence

“Bearbox installs it's own Bearbox access control systems, designed specifically for the Self Storage market.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Our goal is so simple we can sum it up in one word - quality.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceDartford, United KingdomHQ checked Sep 27, 20261-108 contacts →

Strong evidence

“Perimeter Solutions Automation provide Automation, Access Control and Security Systems to both the residential and commercial marketplace, including construction sites.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceHounslow Middlesex, United KingdomHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“Part of CCSS Fire & Security, AST London (Added Security Technology) are Door Entry System and Gate Automation specialists.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Doordeck is now Sentry Interactive.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceBrighton, United KingdomHQ checked Sep 27, 20261-107 contacts →

Partial evidence

“General Distribution Ltd.(Gendis) is a sister company to Paxton Access Ltd and Paxton Access Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
23Strong evidenceBrighton, United KingdomHQ checked Sep 27, 202611-507 contacts →

Strong evidence

“Sensor Access provides cutting edge solutions in every aspect of Access Control.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Security Installation Services Ltd provide a fast and efficient security service across Greater London and North Kent that includes the installation and maintenance of a wide…”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceCookstown, United KingdomHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Inniovate makes Knowio.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 117 cloud-based access control installers based in the United Kingdom

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Cloud-based access control installers based in the United Kingdom at a glance

As of Sep 27, 2026
41.0%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
17.1%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
40
51-200
8
201-500
1
10001+
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 117 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 cloud-based access control installers, 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 “cloud-based access control installers”. 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 cloud-based access control installers), 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 cloud-based access control installers, 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, 406 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 27, 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.

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 cloud-based access control installers, 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 cloud-based access control installers are there based in the United Kingdom?

RevenueBase identified 117 cloud-based access control installers 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?

Paxton Access LTD, headquartered in Brighton, tops this list with the largest team on record.

Which city has the most cloud-based access control installers?

London leads with 20 headquartered companies, followed by Manchester (3) and Belfast (2).

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 406 verified decision-maker contacts tracked across these 117 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 27, 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.