Company lists · Data refreshed November 2026

Top 25 Intelligence and security services worldwide

Name: Intelligence and security services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 13,926 companies tracked

RevenueBase identified 13,926 company matches for intelligence and security services worldwide as of November 2026 and tracks 632,606 professional contacts across them, including 61,034 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for intelligence and security services 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 intelligence and security services 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

13,926Companies

632,606Contacts tracked

61,034Verified emails

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The 25 largest intelligence and security services worldwide

Ranked by team size

Top 25 of 13,926 company matches for intelligence and security services 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	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Nov 5, 2026	5,001-10,000	10,193 contacts →
	Exact match “About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	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
7	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
8	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
9	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
10	Bidvest Protea Coin	Exact match	City Of Tshwane, South AfricaHQ recorded Nov 5, 2026	10001+	3,688 contacts →
	Exact match “Bidvest Protea Coin is a leading provider of integrated, intelligence driven risk management services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Liderman	Exact match	Lima, PeruHQ recorded Nov 5, 2026	10001+	3,635 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 · Nov 5, 2026 · View company records in RevenueBase
12	Sicuritalia S.P.A	Exact match	Milan, ItalyHQ recorded Nov 5, 2026	10001+	3,593 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 · Nov 5, 2026 · View company records in RevenueBase
13	SSI	Exact match	United KingdomHQ recorded Nov 5, 2026	n/a	3,204 contacts →
	Exact match “Specialist Security Company offering worldwide protection services to a niche` market of VIP's and travelling executives.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Control Risks	Exact match	London, United KingdomHQ recorded Nov 5, 2026	1,001-5,000	3,200 contacts →
	Exact match “Control Risks is a global specialist risk consultancy that helps to create secure, compliant and resilient organisations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	BAE Systems Digital Intelligence	Exact match	Canberra, United KingdomHQ recorded Nov 5, 2026	1,001-5,000	3,105 contacts →
	Exact match “Digital Intelligence is home to over 4,500 digital, cyber and intelligence experts across 13 countries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Securitas Sverige AB	Exact match	Stockholm, SwedenHQ recorded Nov 5, 2026	5,001-10,000	3,053 contacts →
	Exact match “Securitas is a global knowledge leader in security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Triple Canopy A Constellis Company	Exact match	Herndon, VA, United StatesHQ recorded Nov 5, 2026	10001+	2,953 contacts →
	Exact match “Triple Canopy is a Constellis company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Orsegups Participações S A	Exact match	São José, BrazilHQ recorded Nov 5, 2026	5,001-10,000	2,635 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 · Nov 5, 2026 · View company records in RevenueBase
19	Security Industry Specialists	Exact match	Culver City, NY, United StatesHQ recorded Nov 5, 2026	5,001-10,000	2,579 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 · Nov 5, 2026 · View company records in RevenueBase
20	Systems Planning & Analysis	Exact match	Alexandria, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,214 contacts →
	Exact match “Systems Planning & Analysis (SPA) is a leading global provider of data-driven analytical insights for critical national security programs.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Crisis24	Exact match	Annapolis, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,207 contacts →
	Exact match “Crisis24, a GardaWorld company, is widely regarded as the leading integrated risk management, crisis response, consulting, and global protective solutions firm, serving the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	MSS Security	Exact match	Parramatta, AustraliaHQ recorded Nov 5, 2026	5,001-10,000	2,182 contacts →
	Exact match “The MSS Security Group (MSS) comprising MSS Security, MSS Strategic Medical & Rescue and SDS is unrivalled in its experience, capability and reputation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,171 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Pinkerton Comprehensive Risk Management	Exact match	Ann Arbor, MI, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,136 contacts →
	Exact match “Pinkerton, established in 1850 by Allan Pinkerton, stands as a leading global provider of security and risk management solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Trigion	Exact match	Schiedam, NetherlandsHQ recorded Nov 5, 2026	5,001-10,000	2,103 contacts →
	Exact match “Elke dag zetten onze collega’s zich in voor jouw veiligheid en die van iedereen om jou heen, zodat jij je veilig voelt en veilig bent.” 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 “intelligence and security services”. 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 13,926 intelligence and security services worldwide

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Intelligence and security services worldwide at a glance

As of Nov 5, 2026

9.6%Verified-email coverage

45.4Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

5,142

11-50

4,018

51-200

2,409

201-500

976

501-1,000

509

1,001-5,000

540

5,001-10,000

110

10001+

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 intelligence and security services are linked below.
What qualifies: Company records worldwide whose business descriptions match “intelligence and security 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. 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 61,034 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.

Intelligence and security services by location

76 lists · largest first

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

How many intelligence and security services are there worldwide?

RevenueBase identified 13,926 company matches for intelligence and security services 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 intelligence and security services?

The United States leads with 2,905 companies, followed by the United Kingdom (1,764) and France (621). Every intelligence and security services list by country and city is linked on this page.

Which city has the most intelligence and security services?

London leads with 614 company records, followed by Sao Paulo (138) and New York (127).

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 61,034 professional contacts with verified work emails tracked across these 13,926 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.