Company lists · Data refreshed November 2026

Top 25 Corporate security agencies based in the United Kingdom

RevenueBase identified 3,089 company matches for corporate security agencies associated with the United Kingdom as of November 2026 and tracks 57,954 professional contacts across them, including 9,600 with verified work emails. London is the largest hub.

This list covers company matches for corporate security agencies 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
3,089Companies
57,954Contacts tracked
9,600Verified emails
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The 25 largest corporate security agencies based in the United Kingdom

Ranked by team size
Top 25 of 3,089 company matches for corporate security agencies 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 matchStaines, United KingdomHQ recorded Nov 5, 202610001+6,705 contacts →

Exact match

“Making the world a safer place.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchWestcliff-on-sea, United KingdomHQ recorded Nov 5, 20265,001-10,0002,067 contacts →

Exact match

“Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchNorthampton, United KingdomHQ recorded Nov 5, 202610001+1,667 contacts →

Exact match

“We are an intelligence-led security business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 5, 20265,001-10,0001,559 contacts →

Exact match

“TSS is the UK’s largest retail specialist security company, employing over 7500+ security personnel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchLeicester, United KingdomHQ recorded Nov 5, 20261,001-5,0001,303 contacts →

Exact match

“With over 45 years of experience, Showsec is a leading name in the UK’s live event security sector.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0001,029 contacts →

Exact match

“CIS Security is an independent security company equipped to help customers to solve the complex challenges in today’s digital, connected and regulated business world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,000981 contacts →

Exact match

“Corps Security - experts in security with social value Built on over 165 years of experience, Corps provides specialist security services, across the UK, to ensure the safety of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchLeeds, United KingdomHQ recorded Nov 5, 20261,001-5,000968 contacts →

Exact match

“Professional Security is one of the UK’s leading providers of security services, specialising in the hospitality and events sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,000458 contacts →

Exact match

“Ward is an award winning, privately owned business, providing bespoke risk and security solutions including protective security personnel, explosive search dogs, narcotic search…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchCirencester, United KingdomHQ recorded Nov 5, 20261,001-5,000449 contacts →

Exact match

“Unlike traditional security providers, we're redefining what protection means in today's world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchStratford, United KingdomHQ recorded Nov 5, 20261,001-5,000349 contacts →

Exact match

“STM Group (UK) Limited is an award-winning company, providing bespoke manpower service solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchManchester, United KingdomHQ recorded Nov 5, 2026501-1,000307 contacts →

Exact match

“Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchHarlow, United KingdomHQ recorded Nov 5, 20261,001-5,000284 contacts →

Exact match

“SES Group was founded in 1998 by Dr Tony Ball and rebranded as SES Group in 2014.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchLeeds, United KingdomHQ recorded Nov 5, 2026501-1,000265 contacts →

Exact match

“First Response Group (FRG) is one of the leading security, risk and FM providers in the UK delivering manned security, technology solutions, building management and vacant…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact 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
21Exact 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
22Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 5, 2026201-500224 contacts →

Exact match

“Surefire Business Protection No matter the sector you work in, or where you’re located in the UK, we can help you to make sure that fire and security problems are not things you…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchRomford, United KingdomHQ recorded Nov 5, 2026201-500203 contacts →

Exact match

“OpenView Security Solutions is the UK’S largest privately owned independent security company and provides unique, innovative and technologically excellent solutions to meet…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchWoking, United KingdomHQ recorded Nov 5, 2026201-500202 contacts →

Exact match

“Pilgrims are a global security, risk management and service support company that identifies and manages risks for clients across all sectors, including oil & gas, telecoms…”

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

Showing 25 of 3,089 corporate security agencies based in the United Kingdom

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Corporate security agencies based in the United Kingdom at a glance

As of Nov 5, 2026
16.6%Verified-email coverage
18.8Average contacts per company
11-50Median size (employees)
22.1%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,105
11-50
951
51-200
662
201-500
184
501-1,000
52
1,001-5,000
39
5,001-10,000
7
10001+
9

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 3,089 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 “corporate security agencies” 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 9,600 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 “corporate security agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many corporate security agencies are there based in the United Kingdom?

RevenueBase identified 3,089 company matches for corporate security agencies 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?

Chubb Fire & Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most corporate security agencies?

London leads with 684 company records, followed by Manchester (87) and Birmingham (79).

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 9,600 professional contacts with verified work emails tracked across these 3,089 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.