Company lists · Data refreshed November 2026

Top 25 Protective intelligence services worldwide

Name: Protective intelligence services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,296 companies tracked

RevenueBase identified 6,296 company matches for protective intelligence services worldwide as of November 2026 and tracks 103,554 professional contacts across them, including 12,460 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for protective intelligence 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 6, 2026. Country and city lists for protective intelligence 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 6, 2026 How this list was built

6,296Companies

103,554Contacts tracked

12,460Verified emails

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The 25 largest protective intelligence services worldwide

Ranked by team size

Top 25 of 6,296 company matches for protective intelligence services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	U.S. Security Associates, INC	Exact match	Roswell, UT, United StatesHQ recorded Nov 6, 2026	10001+	4,263 contacts →
	Exact match “U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Crisis24	Exact match	Annapolis, United StatesHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
3	Paragon Systems INC	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	10001+	1,928 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 · Nov 6, 2026 · View company records in RevenueBase
4	Guardsmark	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	1,562 contacts →
	Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	First Security Group LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	5,001-10,000	1,465 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 · Nov 6, 2026 · View company records in RevenueBase
6	Imvula Quality Protection	Exact match	Woodmead, South AfricaHQ recorded Nov 6, 2026	10001+	1,460 contacts →
	Exact match “At Imvula Quality Protection, we don’t just provide security, we create peace of mind.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	SOS Security LLC	Exact match	Parsippany, VA, United StatesHQ recorded Nov 6, 2026	10001+	1,203 contacts →
	Exact match “SOS Security is a known innovator and leader in the security and protective services industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Brosnan Risk Consultants	Exact match	Pearl River, CA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,080 contacts →
	Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Zerofox	Exact match	Baltimore, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	905 contacts →
	Exact match “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	AEGIS	Exact match	United StatesHQ recorded Nov 6, 2026	1,001-5,000	839 contacts →
	Exact match “AEGIS is a London based, privately owned, British security and risk management company with overseas offices in Afghanistan, Bahrain, Iraq and the USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Northeast Security INC	Exact match	Westwood, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	767 contacts →
	Exact match “Improving Security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Omniplex World Services Corporation	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	696 contacts →
	Exact match “OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Sallyport Global	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	687 contacts →
	Exact match “Sallyport Global a Caliburn company is a global provider of a full spectrum of security and mission support solutions tailored to enable global security and stability operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Halogen Group	Exact match	Lagos, NigeriaHQ recorded Nov 6, 2026	501-1,000	677 contacts →
	Exact match “Halogen Group formerly known as Halogen Security Company Limited is the leading Security Solutions Provider in West Africa.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Icts UK & Ireland	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	675 contacts →
	Exact match “Part of ICTS Europe Group, ICTS UK & Ireland is a professional services firm which has been specialised in security risk for the past 39+ years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	DK Security	Exact match	Grand Rapids, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	592 contacts →
	Exact match “DK Security is unique in that it offers a single company for a wide ranging availability of security and investigative services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	MSA Security	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	585 contacts →
	Exact match “Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Security Alliance	Exact match	Miami, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	585 contacts →
	Exact match “Security Alliance is a highly experienced provider of security solutions for private and business environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Cosepros	Exact match	Distrito Federal, MexicoHQ recorded Nov 6, 2026	1,001-5,000	517 contacts →
	Exact match “Para empresas, comercios y personas que necesitan proteger sus bienes e inmuebles.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Gavin DE Becker & Associates	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	464 contacts →
	Exact match “For more than 45 years, GDBA has developed pioneering strategies and resources for protecting public figures, government agencies, enterprises, and others facing substantial…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Xcelerate Solutions	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	458 contacts →
	Exact match “At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Tarian	Exact match	Louisville, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	424 contacts →
	Exact match “Tarian’s vision is to shape a future where safety and security are not only foundations for enduring success but also powerful catalysts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	American Security & Investigations	Exact match	St. Paul, IA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	420 contacts →
	Exact match “American Security & Investigations has provided security and investigative services throughout the upper midwest since 1959.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	First Security	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	1,001-5,000	419 contacts →
	Exact match “First Security is well placed as New Zealand’s leader in security services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Amarante International	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	408 contacts →
	Exact match “Created in 2007, Amarante is one of Europe’s leading security providers.” Recorded in the RevenueBase company graph · Nov 6, 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 “protective intelligence 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 6,296 protective intelligence services worldwide

See the full list, filter by size, metro and specialty, and access 12,460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Protective intelligence services worldwide at a glance

As of Nov 6, 2026

12.0%Verified-email coverage

16.4Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,576

11-50

1,898

51-200

1,014

201-500

357

501-1,000

180

1,001-5,000

175

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 protective intelligence services are linked below.
What qualifies: Company records worldwide whose business descriptions match “protective intelligence 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 12,460 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 6, 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.

Protective intelligence services by location

33 lists · largest first

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

How many protective intelligence services are there worldwide?

RevenueBase identified 6,296 company matches for protective intelligence 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?

U.S. Security Associates, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most protective intelligence services?

The United States leads with 1,758 companies, followed by the United Kingdom (587) and France (240). Every protective intelligence services list by country and city is linked on this page.

Which city has the most protective intelligence services?

London leads with 280 company records, followed by New York (85) and Paris (62).

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 12,460 professional contacts with verified work emails tracked across these 6,296 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 6, 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.