Company lists · Data refreshed September 2026

Top 25 Intelligence security companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 14,349 companies tracked

RevenueBase identified 14,349 company matches for intelligence security companies worldwide as of September 2026 and tracks 386,009 professional contacts across them, including 54,358 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for intelligence security 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 September 21, 2026. Country and city lists for intelligence security 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 Sep 21, 2026 How this list was built

14,349Companies

386,009Contacts tracked

54,358Verified emails

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The 25 largest intelligence security companies worldwide

Ranked by team size

Top 25 of 14,349 company matches for intelligence security companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 Sep 21, 2026	10001+	79,699 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 · Sep 21, 2026 · View company records in RevenueBase
2	Private Sector	Exact match	United StatesHQ recorded Sep 21, 2026	n/a	12,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Segurpro	Exact match	Sao Paulo, BrazilHQ recorded Sep 21, 2026	10001+	4,530 contacts →
	Exact match “A SegurPro é o próximo passo em segurança privada.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Bugcrowd	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	n/a	3,649 contacts →
	Exact match “We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	U.S. Security Associates, INC	Exact match	Roswell, GA, United StatesHQ recorded Sep 21, 2026	10001+	3,592 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Trellix	Exact match	Plano, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,447 contacts →
	Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Sicuritalia S.P.A	Exact match	Milano, ItalyHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
9	BAE Systems Digital Intelligence	Exact match	Canberra, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	2,947 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 · Sep 21, 2026 · View company records in RevenueBase
10	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,222 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 · Sep 21, 2026 · View company records in RevenueBase
11	Systems Planning & Analysis	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,092 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 · Sep 21, 2026 · View company records in RevenueBase
12	Crisis24	Exact match	Annapolis, MD, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,025 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 · Sep 21, 2026 · View company records in RevenueBase
13	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 21, 2026	10001+	1,949 contacts →
	Exact match “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Mitie Security	Exact match	Northampton, United KingdomHQ recorded Sep 21, 2026	10001+	1,508 contacts →
	Exact match “We are an intelligence-led security business.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Sep 21, 2026	501-1,000	1,378 contacts →
	Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	First Security Group LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 21, 2026	5,001-10,000	1,374 contacts →
	Exact match “First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Securitas Colombia	Exact match	Bogota, ColombiaHQ recorded Sep 21, 2026	5,001-10,000	1,368 contacts →
	Exact match “Securitas es reconocida como una multinacional líder mundial en seguridad.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Imvula Quality Protection	Exact match	Woodmead, South AfricaHQ recorded Sep 21, 2026	10001+	1,340 contacts →
	Exact match “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Grupo Atlas DE Seguridad Integral	Exact match	Cali, ColombiaHQ recorded Sep 21, 2026	10001+	1,328 contacts →
	Exact match “Somos una empresa de seguridad integral, incorporando la tecnología y la innovación como herramientas para asegurar la sostenibilidad de las organizaciones, con un equipo humano…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Banque Populaire Bourgogne Franche-Com	Exact match	Dijon, FranceHQ recorded Sep 21, 2026	1,001-5,000	1,233 contacts →
	Exact match “BANQUE POPULAIRE BOURGOGNE FRANCHE-COM is a Security and Investigations company located in 14 BOULEVARD DE LA TREMOUILLE, DIJON, Burgundy, France.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,232 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Cellebrite	Exact match	Vienna, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,230 contacts →
	Exact match “Cellebrite is the leader in digital intelligence and investigative analytics, partnering with public and private organizations to transform how they manage data in investigations…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	IEM	Exact match	Morrisville, NC, United StatesHQ recorded Sep 21, 2026	501-1,000	1,175 contacts →
	Exact match “IEM is a professional services firm dedicated to building a safe, secure, and resilient world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	SOS Security LLC	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 21, 2026	10001+	1,151 contacts →
	Exact match “SOS Security is a known innovator and leader in the security and protective services industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Titan Security Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,138 contacts →
	Exact match “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded in the RevenueBase company graph · Sep 21, 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 security 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 14,349 intelligence security companies worldwide

See the full list, filter by size, metro and specialty, and access 54,358 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Intelligence security companies worldwide at a glance

As of Sep 21, 2026

14.1%Verified-email coverage

26.9Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

6,541

11-50

4,404

51-200

1,939

201-500

691

501-1,000

323

1,001-5,000

319

5,001-10,000

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 security companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “intelligence security 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 54,358 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 September 21, 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 security companies by location

78 lists · largest first

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

How many intelligence security companies are there worldwide?

RevenueBase identified 14,349 company matches for intelligence security companies worldwide as of September 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 security companies?

The United States leads with 3,687 companies, followed by the United Kingdom (1,131) and India (705). Every intelligence security companies list by country and city is linked on this page.

Which city has the most intelligence security companies?

London leads with 438 company records, followed by Sao Paulo (137) and Paris (129).

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 54,358 professional contacts with verified work emails tracked across these 14,349 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 September 21, 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.