Company lists · Data refreshed September 2026

Top 25 Perimeter security services based in the United Kingdom

RevenueBase identified 217 perimeter security services headquartered in the United Kingdom as of September 2026 and tracks 2,257 professional contacts across them, including 794 with verified work emails and 85 with mobile numbers. London is the largest hub.

This list covers perimeter security services 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
217Companies
2,257Contacts tracked
794Verified emails
85Mobile numbers
Explore all 217 companies → Free signup · no credit card · 500 free credits

The 25 largest perimeter security services based in the United Kingdom

Ranked by team size
Top 25 of 217 perimeter security services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names perimeter security services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Betafence GroupPartial evidence
Leeds, United KingdomHQ checked Sep 5, 20261,001-5,000220

“Betafence - Global Leader in Perimeter Protection For over 145 years, Betafence has been a trusted partner in perimeter protection, providing high-quality fencing and industrial…”

Source: company website · checked Sep 5, 2026
2
PræsidiadStrong evidence
London, United KingdomHQ checked Sep 5, 20261,001-5,000136

“PRÆSIDIAD is a world market leader of force protection solutions,integrated perimeter security systems and industrial mesh production and fencing products.”

Source: company website · checked Sep 5, 2026
3Watford, United KingdomHQ checked Sep 5, 202651-200116

“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: company website · checked Sep 5, 2026
4
Frontier Pitts LTDPartial evidence
Crawley, United KingdomHQ checked Sep 5, 202651-20089

“The British manufacturer of Security Gates, Barriers, Blockers, Bollards & Turnstiles.”

Source: company website · checked Sep 5, 2026
5Whiteley, United KingdomHQ checked Sep 5, 2026501-1,00087

“Croma Security Solutions Group (CSSG) began in 1970 as a family-run business in Shirley, Southampton, known as County Locksmiths.”

Source: company website · checked Sep 5, 2026
6Sandbach, United KingdomHQ checked Sep 5, 202651-20064

“We are a globally recognised leader in design-led physical security solutions.”

Source: company website · checked Sep 5, 2026
7
Barkers FencingPartial evidence
Stoke-On-Trent, United KingdomHQ checked Sep 5, 202651-20061

“Impartially delivering resilient security fencing for professionals serious about protecting people, property and reputations.”

Source: company website · checked Sep 5, 2026
8High Wycombe, United KingdomHQ checked Sep 5, 202651-20046

“Risk Management Security Services specialise in providing bespoke security to commercial, residential and Industrial premises.”

Source: company website · checked Sep 5, 2026
9Wakefield, United KingdomHQ checked Sep 5, 202611-5043

“Established since 1994, Crime and Fire delivers state-of-the-art cost-effective security solutions, to the highest quality and safety standards.”

Source: company website · checked Sep 5, 2026
10
AIB GroupPartial evidence
Bletchley, United KingdomHQ checked Sep 5, 2026201-50043

“All in Black are an accredited security solutions provider with over 20 years’ experience at the highest level across the UK.”

Source: company website · checked Sep 5, 2026
11London, United KingdomHQ checked Sep 5, 2026501-1,00043

“AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.”

Source: company website · checked Sep 5, 2026
12
Atec SecurityPartial evidence
Wolverhampton, United KingdomHQ checked Sep 5, 202651-20040

“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: company website · checked Sep 5, 2026
13
Doyle Security LTDPartial evidence
Dodworth, United KingdomHQ checked Sep 5, 202651-20036

“Doyle Security Ltd is a leading provider of professional security solutions, proudly safeguarding businesses, homeowners, and their properties for over four decades.”

Source: company website · checked Sep 5, 2026
14
Alexandra SecurityPartial evidence
Tonbridge, United KingdomHQ checked Sep 5, 202651-20033

“Your site's protection starts at the perimeter.”

Source: company website · checked Sep 5, 2026
15Liverpool, United KingdomHQ checked Sep 5, 202651-20033

“At Samson Security Fire & Facilities, we provide integrated security, fire protection, and facilities management solutions designed to keep people, property, and operations safe…”

Source: company website · checked Sep 5, 2026
16
Lincoln SecurityPartial evidence
Lincoln, United KingdomHQ checked Sep 5, 202611-5032

“Founded in 1974, Lincoln Security Ltd.”

Source: company website · checked Sep 5, 2026
17
Procter Brothers LTDIndirect evidence
Caerphilly, United KingdomHQ checked Sep 5, 202651-20030

“Procter Brothers Ltd benefits from unrivalled expertise in its three specialisms, combining the best aspects of traditional craftsmanship and care for customers and employees…”

Source: company website · checked Sep 5, 2026
18
W4g Fire & SecurityPartial evidence
Exeter, United KingdomHQ checked Sep 5, 202651-20029

“At W4G Fire & Security, we provide all types of security.”

Source: company website · checked Sep 5, 2026
19
Prodoor UK LimitedStrong evidence
Chertsey, United KingdomHQ checked Sep 5, 202611-5025

“Installation, maintenance and repair of total building and perimeter security systems, from automatic glass doors to car park barriers.”

Source: company website · checked Sep 5, 2026
20
1st ACE SecurityPartial evidence
Bromley, United KingdomHQ checked Sep 5, 202651-20024

“At 1st Ace Security we are specialists in providing security solutions across South London for both domestic and commercial properties.”

Source: company website · checked Sep 5, 2026
21
SecurafitPartial evidence
Swanley, United KingdomHQ checked Sep 5, 202611-5024

“Securafit is a family run security company based within Kent.”

Source: company website · checked Sep 5, 2026
22
Brunel Fire & SecurityPartial evidence
Portishead, United KingdomHQ checked Sep 5, 202611-5023

“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: company website · checked Sep 5, 2026
23Crawley, United KingdomHQ checked Sep 5, 202651-20021

“Classic Security was founded in 1947 by Fredrick Townsley - the father of our chairman and the grandfather of our MD.”

Source: company website · checked Sep 5, 2026
24
Safeguard SystemsPartial evidence
Kingsclere, United KingdomHQ checked Sep 5, 202611-5019

“Safeguard Systems designs and installs commercial security systems to detect, deter, and manage a range of threats.”

Source: company website · checked Sep 5, 2026
25Hoddesdon, United KingdomHQ checked Sep 5, 202611-5018

“Harling Security are experts in physical security solutions.”

Source: company website · checked Sep 5, 2026

Showing 25 of 217 perimeter security services based in the United Kingdom

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Perimeter security services based in the United Kingdom at a glance

As of Sep 5, 2026
11-50Median size (employees)
LondonLargest hub · 23 HQs
85Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
80
11-50
80
51-200
43
201-500
7
501-1,000
2
1,001-5,000
2

Verified emails by last verification

0–30
743
31–60
49
61–90
1
90–180
0
180+
1

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 perimeter security services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “perimeter security services”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among perimeter security services, 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 an evidence 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, 794 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 5, 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

How many perimeter security services are there based in the United Kingdom?

RevenueBase identified 217 perimeter security services 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?

Betafence Group, headquartered in Leeds, tops this list with the largest team on record.

Which city has the most perimeter security services?

London leads with 23 headquartered companies, followed by Birmingham (4) and Leeds (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 794 verified decision-maker contacts tracked across these 217 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 5, 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 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.