Company lists · Data refreshed September 2026
Top 25 School security and safety companies based in the United Kingdom
RevenueBase identified 237 school security and safety companies headquartered in the United Kingdom as of September 2026 and tracks 2,375 professional contacts across them, including 421 with verified work emails. London is the largest hub.
This list covers school security and safety 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 29, 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.
The 25 largest school security and safety companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 326 contacts → | ||||
Partial evidence “Established in 1993, with commitment to our customers and staff alongside a strong ethos and standards driven approach, Regency Security is now the largest provider of door…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 71 contacts → | ||||
Partial evidence “We are now Marlowe Fire & Security Limited.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 52 contacts → | ||||
Partial evidence “Secur-it is a leading provider of security services and risk management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 46 contacts → | ||||
Partial evidence “Risk Management Security Services specialise in providing bespoke security to commercial, residential and Industrial premises.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Partial evidence “Design, install and maintain CCTV Systems Intruder Systems Access Control Manned Security Guarding Event Stewarding Construction Cleaning Commercial Cleaning Builders & Sparkle…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 43 contacts → | ||||
Partial evidence “AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Strong 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 38 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 36 contacts → | ||||
Strong evidence “Doyle Security Ltd is a leading provider of professional security solutions, proudly safeguarding businesses, homeowners, and their properties for over four decades.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 contacts → | ||||
Indirect evidence “Better solutions and support for protecting people, premises and property.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Partial evidence “At WRS Solutions, we specialise in delivering tailored electronic security systems that provide real peace of mind.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 24 contacts → | ||||
Partial evidence “At 1st Ace Security we are specialists in providing security solutions across South London for both domestic and commercial properties.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Partial evidence “Close Protection Security is an industry-leading security company, established in 2017 and based in the North East of England, created by Glenn Bartlett.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Strong evidence “part of the Obsequio Group At Brunel, we provide advanced security and life protection solutions, ensuring that your business and assets are safeguarded with the highest standards…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Indirect evidence “Freedom are an independent company, based in Lincoln and operating Nationwide since 2007.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Partial evidence “Based in Aberdeen, Inverness, and now also Glasgow, Aberdeen Alarm Company Ltd offer a range of solutions for your security, fire prevention and locksmith requirements.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 contacts → | ||||
Partial evidence “Camera Security Services is a family owned and managed business which has been established since 1998; providing integrated security solutions to companies, local authorities…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Partial evidence “Founded in 1986, CDS Security and Fire offer a wide range of bespoke Electronic Fire and Security services to a range of sectors in the North East.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 21 contacts → | ||||
Partial evidence “Classic Security was founded in 1947 by Fredrick Townsley - the father of our chairman and the grandfather of our MD.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Partial evidence “Harling Security are experts in physical security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Partial evidence “ABOUT US: SK Security Services Ltd is a premier security provider based in Watford, Hertfordshire, delivering exceptional security solutions across the United Kingdom.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 16 contacts → | ||||
Partial evidence “Based in Hedge End, Southampton, we offer a full range of fire alarm and security services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Partial evidence “Secure Engineering are quality installers of business and industrial electronic security systems, site lighting and CCTV cameras in London and the South East of England.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Partial evidence “SS Systems Ltd are experts in fire protection, fire protection equipment, & building security - installing and maintaining a wide range of systems from hardwire fire alarms…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Partial evidence “Security Services Provider specialising in Remote Monitoring; Installations and Maintenance of CCTV, Fire and Intruder Alarms, Access Controls.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: school security and safety 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 school security and safety companies.
- Partial evidence
- Its own public description names part of school security and safety companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name school security and safety 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 237 school security and safety companies based in the United Kingdom
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School security and safety companies based in the United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 237 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 school security and safety 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 “school security and safety 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 school security and safety 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 school security and safety 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, 421 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 29, 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 school security and safety 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 school security and safety companies are there based in the United Kingdom?
RevenueBase identified 237 school security and safety 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?
Regency Security, headquartered in Braintree, tops this list with the largest team on record.
Which city has the most school security and safety companies?
London leads with 35 headquartered companies, followed by Leicester (4) and Manchester (4).
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 421 verified decision-maker contacts tracked across these 237 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 29, 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.
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