Company lists · Data refreshed October 2026

Top 25 Security services companies worldwide

Name: Security services companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 25,889 companies tracked

RevenueBase identified 25,889 company matches for security services companies worldwide as of October 2026 and tracks 782,071 professional contacts across them, including 61,898 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for security services companies 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 October 1, 2026. Country and city lists for security services companies 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 Oct 1, 2026 How this list was built

25,889Companies

782,071Contacts tracked

61,898Verified emails

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The 25 largest security services companies worldwide

Ranked by team size

Top 25 of 25,889 company matches for security services companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	Allied Universal	Exact match	Irvine, CA, United StatesHQ recorded Oct 1, 2026	10001+	62,804 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 · Oct 1, 2026 · View company records in RevenueBase
2	Prosegur	Exact match	Madrid, SpainHQ recorded Oct 1, 2026	10001+	40,747 contacts →
	Exact match “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Securitas Security Services Usa, INC	Exact match	Parsippany, NJ, United StatesHQ recorded Oct 1, 2026	10001+	38,634 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Transguard Group	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 1, 2026	10001+	15,652 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 · Oct 1, 2026 · View company records in RevenueBase
5	Gocil Tecnologia EM Segurança E Serviços	Exact match	Sao Paulo, BrazilHQ recorded Oct 1, 2026	10001+	7,986 contacts →
	Exact match “One of the largest companies in the professional services and security markets in Brazil.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Securitas Group	Exact match	Stockholm, SwedenHQ recorded Oct 1, 2026	10001+	6,335 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	TYCO	Exact match	Cork, IrelandHQ recorded Oct 1, 2026	10001+	5,384 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 · Oct 1, 2026 · View company records in RevenueBase
8	Paladin Security Group LTD	Exact match	Burnaby, BC, CanadaHQ recorded Oct 1, 2026	10001+	4,835 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 · Oct 1, 2026 · View company records in RevenueBase
9	Certis	Exact match	SingaporeHQ recorded Oct 1, 2026	10001+	4,610 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 · Oct 1, 2026 · View company records in RevenueBase
10	Graber Sistemas DE Segurança	Exact match	Barueri, BrazilHQ recorded Oct 1, 2026	10001+	4,572 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 · Oct 1, 2026 · View company records in RevenueBase
11	Segurpro	Exact match	Sao Paulo, BrazilHQ recorded Oct 1, 2026	10001+	4,530 contacts →
	Exact match “A SegurPro é o próximo passo em segurança privada.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Grupo Haganá	Exact match	Sao Paulo, BrazilHQ recorded Oct 1, 2026	10001+	4,292 contacts →
	Exact match “O que é trabalhar no Grupo Haganá?” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Unemployed	Exact match	St. Petersburg, FL, United StatesHQ recorded Oct 1, 2026	n/a	4,038 contacts →
	Exact match “Excelsior Defense is a security and investigations company based out of St.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Securitas France	Exact match	Issy-les-moulineaux, FranceHQ recorded Oct 1, 2026	10001+	3,843 contacts →
	Exact match “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Oct 1, 2026	10001+	3,620 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 · Oct 1, 2026 · View company records in RevenueBase
16	Inter-Con Security	Exact match	Pasadena, CA, United StatesHQ recorded Oct 1, 2026	10001+	3,612 contacts →
	Exact match “EVERYWHERE SECURITY MATTERS.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	U.S. Security Associates, INC	Exact match	Roswell, GA, United StatesHQ recorded Oct 1, 2026	10001+	3,592 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Sicuritalia S.P.A	Exact match	Milan, ItalyHQ recorded Oct 1, 2026	10001+	3,387 contacts →
	Exact match “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Liderman	Exact match	Lima, PeruHQ recorded Oct 1, 2026	10001+	3,140 contacts →
	Exact match “Somos la empresa de seguridad de mayor prestigio en el Perú" Comenzamos en el año 1989, con solo 4 hombres de Seguridad, que creyeron en nuestro estilo de liderazgo y decidieron…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Securitas Sverige AB	Exact match	Stockholm, SwedenHQ recorded Oct 1, 2026	5,001-10,000	3,004 contacts →
	Exact match “Securitas is a global knowledge leader in security.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Grupo GR	Exact match	São Paulo, BrazilHQ recorded Oct 1, 2026	10001+	2,772 contacts →
	Exact match “Fundado em 1992, o GRUPO GR se consolidou no mercado por sua qualidade e seriedade na implantação e operação de soluções de segurança e serviços para diversos tipos de clientes.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Security Industry Specialists	Exact match	Culver City, CA, United StatesHQ recorded Oct 1, 2026	5,001-10,000	2,500 contacts →
	Exact match “The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Orsegups Participações S A	Exact match	São José, BrazilHQ recorded Oct 1, 2026	5,001-10,000	2,462 contacts →
	Exact match “A Orsegups atua desde 1977 na prestação de serviços de segurança e terceirização de serviços especializados.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Paragon Security	Exact match	Toronto, ON, CanadaHQ recorded Oct 1, 2026	1,001-5,000	2,365 contacts →
	Exact match “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Andy Frain Services	Exact match	Aurora, IL, United StatesHQ recorded Oct 1, 2026	5,001-10,000	2,266 contacts →
	Exact match “Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Recorded in the RevenueBase company graph · Oct 1, 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 “security services companies”. 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 25,889 security services companies worldwide

See the full list, filter by size, metro and specialty, and access 61,898 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security services companies worldwide at a glance

As of Oct 1, 2026

7.9%Verified-email coverage

30.2Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

8,130

11-50

7,618

51-200

5,100

201-500

2,168

501-1,000

1,148

1,001-5,000

1,122

5,001-10,000

202

10001+

190

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 security services companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “security services companies” 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 61,898 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 October 1, 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 services companies by location

92 lists · largest first

Every Security services companies 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 “security services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security services companies are there worldwide?

RevenueBase identified 25,889 company matches for security services companies worldwide as of October 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?

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

Which country has the most security services companies?

The United States leads with 4,727 companies, followed by the United Kingdom (2,523) and Brazil (1,745). Every security services companies list by country and city is linked on this page.

Which city has the most security services companies?

London leads with 575 company records, followed by Sao Paulo (355) and New York (143).

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 61,898 professional contacts with verified work emails tracked across these 25,889 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 October 1, 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.