Company lists · Data refreshed September 2026

Top 25 Corporate security consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 14,945 companies tracked

RevenueBase identified 14,945 company matches for corporate security consulting firms worldwide as of September 2026 and tracks 305,146 professional contacts across them, including 39,018 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for corporate security consulting firms 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 corporate security consulting firms 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

14,945Companies

305,146Contacts tracked

39,018Verified emails

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The 25 largest corporate security consulting firms worldwide

Ranked by team size

Top 25 of 14,945 company matches for corporate security consulting firms 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	Securitas Security Services Usa, INC	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 21, 2026	10001+	38,634 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	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
3	Alliedbarton Security Services	Exact match	Santa Ana, United StatesHQ recorded Sep 21, 2026	10001+	4,358 contacts →
	Exact match “We've merged!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
5	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
6	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
7	Securitas Sverige AB	Exact match	Stockholm, SwedenHQ recorded Sep 21, 2026	5,001-10,000	3,004 contacts →
	Exact match “Securitas is a global knowledge leader in security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Grupo GR	Exact match	São Paulo, BrazilHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
9	Security Industry Specialists	Exact match	Culver City, CA, United StatesHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
10	Paragon Security	Exact match	Toronto, ON, CanadaHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
11	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
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	Wilson Security	Exact match	Essendon Fields, AustraliaHQ recorded Sep 21, 2026	5,001-10,000	1,813 contacts →
	Exact match “At Wilson Security, we are committed to building a safer future for everyone.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Sunstates Security	Exact match	Raleigh, NC, United StatesHQ recorded Sep 21, 2026	5,001-10,000	1,639 contacts →
	Exact match “Sunstates Security, LLC is one of the industry's leading providers of contract security services with a differentiated approach to providing successful, cost-effective, quality…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Securitas Canada	Exact match	North York, ON, CanadaHQ recorded Sep 21, 2026	5,001-10,000	1,632 contacts →
	Exact match “Over 90 years of protecting the things that matter, we’ve seen more than most.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Securiguard Middle East LLC	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Sep 21, 2026	10001+	1,541 contacts →
	Exact match “Welcome to Securiguard Middle East, Your answer for an Integrated Safety and Security Solutions in the UAE At Securiguard Middle East, we are driven by a commitment to make a…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Securitas Belgium	Exact match	Diegem, BelgiumHQ recorded Sep 21, 2026	5,001-10,000	1,419 contacts →
	Exact match “See a different world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Guardsmark	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	1,375 contacts →
	Exact match “Guardsmark, LLC provides security services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	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
21	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
22	Comando G8	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	5,001-10,000	1,361 contacts →
	Exact match “O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	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
24	Protectas	Exact match	Lausanne, SwitzerlandHQ recorded Sep 21, 2026	1,001-5,000	1,318 contacts →
	Exact match “Protectas belongs to the Swedish Securitas AB, the knowledged leader in security (which incidentally is not affiliated with the Swiss company of the same name, Securitas AG).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	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

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 consulting firms”. 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 14,945 corporate security consulting firms worldwide

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Corporate security consulting firms worldwide at a glance

As of Sep 21, 2026

12.8%Verified-email coverage

20.4Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

7,517

11-50

4,147

51-200

1,787

201-500

667

501-1,000

325

1,001-5,000

336

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 corporate security consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “corporate security consulting firms” 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 39,018 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.

Corporate security consulting firms by location

74 lists · largest first

Every Corporate security consulting firms 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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many corporate security consulting firms are there worldwide?

RevenueBase identified 14,945 company matches for corporate security consulting firms 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?

Securitas Security Services Usa, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most corporate security consulting firms?

The United States leads with 4,059 companies, followed by the United Kingdom (941) and India (595). Every corporate security consulting firms list by country and city is linked on this page.

Which city has the most corporate security consulting firms?

London leads with 356 company records, followed by Sao Paulo (173) and New York (133).

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 39,018 professional contacts with verified work emails tracked across these 14,945 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.