Company lists · Data refreshed November 2026

Top 25 Security guard services based in the United Kingdom

RevenueBase identified 1,250 company matches for security guard services associated with the United Kingdom as of November 2026 and tracks 14,541 professional contacts across them, including 1,302 with verified work emails. London is the largest hub.

This list covers company matches for security guard 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
1,250Companies
14,541Contacts tracked
1,302Verified emails
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The 25 largest security guard services based in the United Kingdom

Ranked by team size
Top 25 of 1,250 company matches for security guard 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 matchManchester, United KingdomHQ recorded Nov 5, 20261,001-5,000541 contacts →

Exact match

“Established in 2003, FGH are trusted by international brands to keep their assets and millions of people safe every year.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSwindon, United KingdomHQ recorded Nov 5, 2026501-1,000413 contacts →

Exact match

“SSGC is a leading innovator in the Manned Guarding industry, specialising in the application of new technology to improve the performance of its Management team, deployed staff…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchBraintree, United KingdomHQ recorded Nov 5, 20261,001-5,000337 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchBarrow-upon-humber, United KingdomHQ recorded Nov 5, 20261,001-5,000275 contacts →

Exact match

“We have moved as Profile Security Services is now Proudly OCS.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchShirley, United KingdomHQ recorded Nov 5, 20261,001-5,000246 contacts →

Exact match

“MAN Commercial is a leading security company and Training Academy based in Solihull, West Midlands.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchNewcastle, United KingdomHQ recorded Nov 5, 20261,001-5,000239 contacts →

Exact match

“Phoenix Security is part of the Danieli Holdings Group of companies and also includes one of the UK’s leading Stewarding, CCTV and Manned Guarding companies, Phoenix Eye.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchBexleyheath, United KingdomHQ recorded Nov 5, 2026501-1,000218 contacts →

Exact match

“Wise Security is a trusted provider of professional security, crowd management, and safety solutions for high‑profile events, venues, and organisations across the UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMiddx, United KingdomHQ recorded Nov 5, 2026201-500183 contacts →

Exact match

“We are able to supply a one stop security service for all types of security requirement.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchSidcup, United KingdomHQ recorded Nov 5, 2026201-500172 contacts →

Exact match

“Trigion Security Services is the UK provider of Security Guarding and Technical Solutions for Facilicom UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchPortsmouth, United KingdomHQ recorded Nov 5, 2026201-500135 contacts →

Exact match

“Vespasian Security was formed in February 2006.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBirmingham, United KingdomHQ recorded Nov 5, 2026201-500128 contacts →

Exact match

“SNSG is the first of a new generation of security companies where continued investment in people and a dedication to customer service brings a new level of professionalism and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchPlympton, United KingdomHQ recorded Nov 5, 202651-200114 contacts →

Exact match

“City Security understands that our staff are the first and last person a patron encounters on their visit to a venue.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchSeaton Burn, United KingdomHQ recorded Nov 5, 2026501-1,00096 contacts →

Exact match

“T3 Security is a leading National Security Company supplying clients across the UK with bespoke security services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50089 contacts →

Exact match

“KK Security was established in 2014 with the goal of keeping people safe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50074 contacts →

Exact match

“United Guarding Services has been a trusted name in the security industry for over 30 years, providing high-performance security solutions for prestigious premises in London and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchAmy Johnson Way, United KingdomHQ recorded Nov 5, 2026501-1,00073 contacts →

Exact match

“Welcome to Britsafe Limited Years of Security and Cleaning experience have made us masters in providing defect-free security and cleaning solutions tailor-made to suit the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50067 contacts →

Exact match

“Vigilance is a pioneering security company with a proud military heritage.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact 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
23Exact 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
24Exact matchCumbernauld, United KingdomHQ recorded Nov 5, 2026201-50060 contacts →

Exact match

“Portal Security is a leading provider of security services dedicated to safeguarding individuals, businesses, and communities.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchMiddlesbrough, United KingdomHQ recorded Nov 5, 202651-20058 contacts →

Exact match

“Recognised nationally for our customer focused approach and commitment to excellence.”

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

Showing 25 of 1,250 security guard services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,302 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security guard services based in the United Kingdom at a glance

As of Nov 5, 2026
9.0%Verified-email coverage
11.6Average contacts per company
11-50Median size (employees)
23.8%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
358
11-50
410
51-200
330
201-500
84
501-1,000
18
1,001-5,000
15
5,001-10,000
1
10001+
2

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 1,250 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 guard 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 1,302 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.

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 guard services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,250 company matches for security guard 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 guard services?

London leads with 298 company records, followed by Birmingham (46) and Manchester (43).

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 1,302 professional contacts with verified work emails tracked across these 1,250 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.

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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.