Company lists · Data refreshed November 2026

Top 25 Corporate security agencies worldwide

Name: Corporate security agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 31,034 companies tracked

RevenueBase identified 31,034 company matches for corporate security agencies worldwide as of November 2026 and tracks 1,143,478 professional contacts across them, including 94,714 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for corporate security agencies worldwide, 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. Country and city lists for corporate security agencies follow the table.

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

31,034Companies

1,143,478Contacts tracked

94,714Verified emails

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The 25 largest corporate security agencies worldwide

Ranked by team size

Top 25 of 31,034 company matches for corporate security agencies worldwide, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	G4s	Exact match	London, United KingdomHQ recorded Nov 5, 2026	10001+	86,236 contacts →
	Exact match “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Allied Universal	Exact match	Irvine, IL, United StatesHQ recorded Nov 5, 2026	10001+	66,203 contacts →
	Exact match “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Prosegur	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	46,086 contacts →
	Exact match “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Securitas Security Services Usa, INC	Exact match	Parsippany, MI, United StatesHQ recorded Nov 5, 2026	10001+	40,551 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Gardaworld	Exact match	Saint-laurent, FL, CanadaHQ recorded Nov 5, 2026	10001+	17,987 contacts →
	Exact match “GardaWorld is the world’s largest privately-owned security services company, offering cash services, physical and specialized security solutions, and with our Crisis24 portal, the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Transguard Group	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 5, 2026	10001+	16,599 contacts →
	Exact match “Offering flexible solutions for all of the UAE’s staffing needs since 2001, Transguard Group is the region’s most trusted expert in security, facilities management, cash services…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Verisure	Exact match	Global Hq - Versoix, GermanyHQ recorded Nov 5, 2026	10001+	16,176 contacts →
	Exact match “Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America and number one…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Securitas Nederland	Exact match	Breukelen, United StatesHQ recorded Nov 5, 2026	1,001-5,000	11,949 contacts →
	Exact match “Businesses face a wide range of risks and hazards that they, in one way or another, have to deal with.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Verzani & Sandrini	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	11,695 contacts →
	Exact match “Com uma história sólida de sucesso desde sua fundação em 1967, a Verzani & Sandrini se destaca como líder nacional em diversos serviços terceirizados.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Gocil Tecnologia EM Segurança E Serviços	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	8,791 contacts →
	Exact match “One of the largest companies in the professional services and security markets in Brazil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Grupo Souza Lima	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	7,503 contacts →
	Exact match “Sempre inovador, o Grupo Souza Lima desenvolve soluções completas e híbridas, que realmente funcionam, em serviços de Segurança, Limpeza e Facilities.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Securitas Group	Exact match	Stockholm, SwedenHQ recorded Nov 5, 2026	10001+	7,033 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Chubb Fire & Security	Exact match	Staines, United KingdomHQ recorded Nov 5, 2026	10001+	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
14	TYCO	Exact match	Cork, IrelandHQ recorded Nov 5, 2026	10001+	5,755 contacts →
	Exact match “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Segurpro	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	5,254 contacts →
	Exact match “A SegurPro é o próximo passo em segurança privada.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Certis	Exact match	SingaporeHQ recorded Nov 5, 2026	10001+	5,040 contacts →
	Exact match “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Graber Sistemas DE Segurança	Exact match	Barueri, BrazilHQ recorded Nov 5, 2026	10001+	5,036 contacts →
	Exact match “A Graber atua de forma pioneira na prestação de serviços de segurança desde 1982, introduzindo o conceito de projetos integrados na área de segurança.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Paladin Security Group LTD	Exact match	Burnaby, BC, CanadaHQ recorded Nov 5, 2026	10001+	4,808 contacts →
	Exact match “As one of Canada’s Best Managed Companies, boasting Canada’s 10 Most Admired Corporate Cultures, Paladin is Canada’s leading security company, with services and superior expertise…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Grupo Haganá	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	10001+	4,705 contacts →
	Exact match “O que é trabalhar no Grupo Haganá?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	U.S. Security Associates, INC	Exact match	Roswell, UT, United StatesHQ recorded Nov 5, 2026	10001+	4,263 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Securitas France	Exact match	Issy-les-moulineaux, FranceHQ recorded Nov 5, 2026	10001+	4,112 contacts →
	Exact match “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Unemployed	Exact match	St. Petersburg, FL, United StatesHQ recorded Nov 5, 2026	n/a	4,040 contacts →
	Exact match “Excelsior Defense is a security and investigations company based out of St.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	3,955 contacts →
	Exact match “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Inter-Con Security	Exact match	Pasadena, CA, United StatesHQ recorded Nov 5, 2026	10001+	3,921 contacts →
	Exact match “Everywhere Security Matters™ Inter-Con is one of the largest and fastest-growing physical security and risk management companies in the world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Fidelity Services Group	Exact match	South AfricaHQ recorded Nov 5, 2026	10001+	3,786 contacts →
	Exact match “Fidelity Services Group is Southern Africa’s largest integrated security solutions provider and the industry leader in protection innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “corporate security agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 31,034 corporate security agencies worldwide

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Corporate security agencies worldwide at a glance

As of Nov 5, 2026

8.3%Verified-email coverage

36.8Average contacts per company

11-50Median size (employees)

2.3%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

9,768

11-50

9,311

51-200

5,984

201-500

2,469

501-1,000

1,302

1,001-5,000

1,281

5,001-10,000

247

10001+

241

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for corporate security agencies are linked below.
What qualifies: Company records worldwide 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. 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 94,714 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.

Corporate security agencies by location

125 lists · largest first

Every Corporate security agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 31,034 company matches for corporate security agencies worldwide 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?

G4s tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most corporate security agencies?

The United States leads with 5,668 companies, followed by the United Kingdom (3,089) and Brazil (2,160). Every corporate security agencies list by country and city is linked on this page.

Which city has the most corporate security agencies?

London leads with 699 company records, followed by Sao Paulo (468) and New York (172).

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 94,714 professional contacts with verified work emails tracked across these 31,034 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.