Company lists · Data refreshed November 2026

Top 25 Security and emergency services based in the United Kingdom

RevenueBase identified 460 company matches for security and emergency services associated with the United Kingdom as of November 2026 and tracks 17,239 professional contacts across them, including 4,095 with verified work emails. London is the largest hub.

This list covers company matches for security and emergency 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
460Companies
17,239Contacts tracked
4,095Verified emails
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The 25 largest security and emergency services based in the United Kingdom

Ranked by team size
Top 25 of 460 company matches for security and emergency 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 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 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 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
4Exact 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
5Exact 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
6Exact matchNottingham, United KingdomHQ recorded Nov 5, 2026201-500154 contacts →

Exact match

“SF Group are your local knowledge experts in risk management, security, logistics and emergency solution support.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchPoole, United KingdomHQ recorded Nov 5, 2026201-500121 contacts →

Exact match

“Solace Global Risk began in 2010 with a simple belief: when people face risk, they need partners who act quickly and stand by their word.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchEpsom, United KingdomHQ recorded Nov 5, 202651-200107 contacts →

Exact match

“Peoplesafe is the largest workforce safety technology provider in the world, protecting more than people across every industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBingham, United KingdomHQ recorded Nov 5, 2026201-500106 contacts →

Exact match

“Octavian Security is part of the Octavian Group, a global leader delivering integrated solutions across security, facilities management, and technology-led services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20095 contacts →

Exact match

“At Servoca Secure Solutions, we take great pride in delivering a multi-service security business; offering a range of complementary products and services to both the public and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20068 contacts →

Exact match

“We are experts in the Public Safety and Enterprise Security sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchOldbury, United KingdomHQ recorded Nov 5, 2026201-50067 contacts →

Exact match

“GMS Group offers a joined-up suite of security services for businesses and individuals.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50067 contacts →

Exact match

“Black Diamond Security - Safeguarding Your World.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact 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
19Exact 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
20Exact matchSouth Normanton, United KingdomHQ recorded Nov 5, 2026201-50054 contacts →

Exact match

“Secur-it is a leading provider of security services and risk management.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20053 contacts →

Exact match

“In today’s complex threat environment, businesses, individuals, and organisations require trusted partners to provide the ultimate assurance that their assets are well protected.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact 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
24Exact matchBedford, United KingdomHQ recorded Nov 5, 202651-20051 contacts →

Exact match

“Established in 1990, Ace Fire & Security is an end-to-end security, occupant safety, systems integration, monitoring and fire solutions specialist for commercial, industrial site…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 460 security and emergency services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,095 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security and emergency services based in the United Kingdom at a glance

As of Nov 5, 2026
23.8%Verified-email coverage
37.5Average contacts per company
11-50Median size (employees)
21.5%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
143
51-200
114
201-500
35
501-1,000
10
1,001-5,000
7
5,001-10,000
1
10001+
1

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 460 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 and emergency 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 4,095 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 and emergency 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 and emergency services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 460 company matches for security and emergency 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?

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 security and emergency services?

London leads with 99 company records, followed by Manchester (13) and Birmingham (11).

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 4,095 professional contacts with verified work emails tracked across these 460 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 460 security and emergency 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.