Company lists · Data refreshed November 2026

Top 25 Security patrol services based in the United Kingdom

RevenueBase identified 542 company matches for security patrol services associated with the United Kingdom as of November 2026 and tracks 6,460 professional contacts across them, including 704 with verified work emails. London is the largest hub.

This list covers company matches for security patrol services associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
542Companies
6,460Contacts tracked
704Verified emails
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The 25 largest security patrol services based in the United Kingdom

Ranked by team size
Top 25 of 542 company matches for security patrol services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUnited KingdomHQ recorded Nov 5, 20261,001-5,000820 contacts →

Exact match

“Ranked in the top 1% of UK security companies, as approved by the Security Industry Authority, SecuriGroup is an award-winning security company, specialising in the provision of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchEnfield, United KingdomHQ recorded Nov 5, 2026501-1,000171 contacts →

Exact match

“We are GUK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200165 contacts →

Exact match

“The Keyholding Company are a tech-enabled mobile security services company, specialising in alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHounslow, United KingdomHQ recorded Nov 5, 2026201-50099 contacts →

Exact match

“For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNorthampton, United KingdomHQ recorded Nov 5, 202651-20083 contacts →

Exact match

“BauWatch secures your site and assets with rapidly deployed mobile video surveillance systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchBristol, United KingdomHQ recorded Nov 5, 202651-20072 contacts →

Exact match

“is a security and facilities management business with over 25 years’ experience in monitoring, checking and delivering contractor performance for clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchCarlisle, United KingdomHQ recorded Nov 5, 2026201-50069 contacts →

Exact match

“Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchLoughton, United KingdomHQ recorded Nov 5, 2026201-50065 contacts →

Exact match

“Sentinel Group Security is a fast growing provider of all aspects of security personnel and manned security services operating across the United Kingdom.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50063 contacts →

Exact match

“City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchIlford, United KingdomHQ recorded Nov 5, 2026201-50059 contacts →

Exact match

“LEON Guarding provides reliable, tailored security solutions to protect individuals, organizations, and assets all over UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchHarrow, United KingdomHQ recorded Nov 5, 202651-20057 contacts →

Exact match

“Citiguard Security offers accredited and specialised security services including high quality trained guarding, key holding and alarm response, reception services, concierge, door…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchGateshead, United KingdomHQ recorded Nov 5, 2026201-50054 contacts →

Exact match

“The Protector Group are a multi disciplined security company specializing in Manned Guarding, CCTV installation, maintenance and monitoring, Intruder and Fire alarm installation…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAldershot, United KingdomHQ recorded Nov 5, 202651-20054 contacts →

Exact match

“Shield Security Services Limited was incorporated in 1986.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchWarrington, United KingdomHQ recorded Nov 5, 202651-20052 contacts →

Exact match

“Established in 1992, we are one of the largest security companies in Manchester and are now providing an extensive range of security services to our clients Nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchLeeds, United KingdomHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“4 Site Security have specialised in providing professional security services to clients throughout the North of England for over 23 Years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 5, 2026501-1,00050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchSouthampton, United KingdomHQ recorded Nov 5, 202651-20049 contacts →

Exact match

“Kestrel Guards have been delivering security solutions to homes, businesses and property since 1988 with the local knowledge, infrastructure, experience, expertise and resources…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchHigh Wycombe, United KingdomHQ recorded Nov 5, 202651-20048 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchRainham, United KingdomHQ recorded Nov 5, 202651-20048 contacts →

Exact match

“2012 Security provide tailored security services to meet your needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchHounslow, United KingdomHQ recorded Nov 5, 2026201-50047 contacts →

Exact match

“Magenta Security Services has been securing businesses, events, and public spaces across the UK since 1995.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchCanterbury, United KingdomHQ recorded Nov 5, 2026201-50045 contacts →

Exact match

“AKON SECURITY SERVICES LTD – Professional Security & Facilities in Kent Trusted by the Community.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchAndover, United KingdomHQ recorded Nov 5, 202651-20042 contacts →

Exact match

“Venture Security was founded in Hampshire in 2006 and has grown from a small family venture into one of the UK’s highest-performing security providers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchDerby, United KingdomHQ recorded Nov 5, 202651-20038 contacts →

Exact match

“NVC Security are a leading provider of Security Services across the East Midlands and nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchKings Langley, United KingdomHQ recorded Nov 5, 202651-20037 contacts →

Exact match

“Guardior is a leading security management service, safeguarding property, people and businesses across the UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchLeeds, United KingdomHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“Established since 2006 SmartWatch offer a single supplier solution to your security and property management needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 542 security patrol services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 704 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security patrol services based in the United Kingdom at a glance

As of Nov 5, 2026
10.9%Verified-email coverage
11.9Average contacts per company
11-50Median size (employees)
23.4%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
155
51-200
161
201-500
34
501-1,000
6
1,001-5,000
5

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 542 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “security patrol services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 704 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Security patrol services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security patrol services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 542 company matches for security patrol services associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Securigroup tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most security patrol services?

London leads with 127 company records, followed by Manchester (19) and Birmingham (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 704 professional contacts with verified work emails tracked across these 542 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 542 security patrol services based in the United Kingdom. Start with a free account, no credit card.

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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.