Company lists · Data refreshed September 2026

Top 25 Industrial security consultant companies worldwide

RevenueBase identified 15,242 industrial security consultant companies worldwide as of September 2026 and tracks 322,803 professional contacts across them, including 31,719 with verified work emails. The United States is the largest market and London the largest hub.

This list covers industrial security consultant companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for industrial security consultant companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
15,242Companies
322,803Contacts tracked
31,719Verified emails
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The 25 largest industrial security consultant companies worldwide

Ranked by team size
Top 25 of 15,242 industrial security consultant companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial security consultant companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSao Paulo, BrazilHQ checked Sep 28, 202610001+7,986 contacts →

Partial evidence

“One of the largest companies in the professional services and security markets in Brazil.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceBarueri, BrazilHQ checked Sep 28, 202610001+4,572 contacts →

Indirect evidence

“A Graber atua de forma pioneira na prestação de serviços de segurança desde 1982, introduzindo o conceito de projetos integrados na área de segurança.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSao Paulo, BrazilHQ checked Sep 28, 202610001+4,530 contacts →

Indirect evidence

“A SegurPro é o próximo passo em segurança privada.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSt. Petersburg, FL, United StatesHQ checked Sep 28, 2026n/a4,038 contacts →

Partial evidence

“Excelsior Defense is a security and investigations company based out of St.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceMadrid, SpainHQ checked Sep 28, 202610001+3,620 contacts →

Partial evidence

“Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceRoswell, GA, United StatesHQ checked Sep 28, 202610001+3,592 contacts →

Indirect evidence

“U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceMilano, ItalyHQ checked Sep 28, 202610001+3,387 contacts →

Partial evidence

“Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceStockholm, SwedenHQ checked Sep 28, 20265,001-10,0003,004 contacts →

Partial evidence

“Securitas is a global knowledge leader in security.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceSão Paulo, BrazilHQ checked Sep 28, 202610001+2,772 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceCulver City, CA, United StatesHQ checked Sep 28, 20265,001-10,0002,500 contacts →

Partial evidence

“The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSão José, BrazilHQ checked Sep 28, 20265,001-10,0002,462 contacts →

Indirect evidence

“A Orsegups atua desde 1977 na prestação de serviços de segurança e terceirização de serviços especializados.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceToronto, ON, CanadaHQ checked Sep 28, 20261,001-5,0002,365 contacts →

Partial evidence

“Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceCali, ColombiaHQ checked Sep 28, 20265,001-10,0001,969 contacts →

Partial evidence

“Somos FORTOX Security Group compañía con más de 50 años de experiencia en el sector de la vigilancia y seguridad privada en Colombia, y a la fecha se consolida como la tercera…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceHerndon, VA, United StatesHQ checked Sep 28, 202610001+1,949 contacts →

Partial evidence

“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceWestcliff-on-sea, United KingdomHQ checked Sep 28, 20265,001-10,0001,842 contacts →

Indirect evidence

“Wilson James provides safe, secure, customer-led solutions to more than 300 clients across the UK and Europe.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceEssendon Fields, AustraliaHQ checked Sep 28, 20265,001-10,0001,813 contacts →

Partial evidence

“At Wilson Security, we are committed to building a safer future for everyone.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSao Paulo, BrazilHQ checked Sep 28, 202610001+1,754 contacts →

Indirect evidence

“Com 35 anos de experiência no mercado, o grupo Albatroz presta serviços de alta complexidade em segurança patrimonial, segurança eletrônica, combate a incêndio e serviços de…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceSão Paulo, BrazilHQ checked Sep 28, 20265,001-10,0001,686 contacts →

Indirect evidence

“Fundada em 1990, o Grupo Belfort foi criado para oferecer soluções integradas de proteção e segurança.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceNorth York, ON, CanadaHQ checked Sep 28, 20265,001-10,0001,632 contacts →

Indirect evidence

“Over 90 years of protecting the things that matter, we’ve seen more than most.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceAbu Dhabi, United Arab EmiratesHQ checked Sep 28, 202610001+1,541 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceBurnaby, BC, CanadaHQ checked Sep 28, 20261,001-5,0001,464 contacts →

Partial evidence

“Securiguard Services Limited has been at the forefront of the asset protection arena for 50 years by being a leading-edge innovative security and safety solutions provider.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceDiegem, BelgiumHQ checked Sep 28, 20265,001-10,0001,419 contacts →

Indirect evidence

“See a different world.”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceDubai, United Arab EmiratesHQ checked Sep 28, 20261,001-5,0001,398 contacts →

Partial evidence

“World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202610001+1,375 contacts →

Partial evidence

“Guardsmark, LLC provides security services.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceBogota, ColombiaHQ checked Sep 28, 20265,001-10,0001,368 contacts →

Partial evidence

“Securitas es reconocida como una multinacional líder mundial en seguridad.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 15,242 industrial security consultant companies worldwide

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Industrial security consultant companies worldwide at a glance

As of Sep 28, 2026
9.8%Verified-email coverage
21.2Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
6,356
11-50
4,314
51-200
2,249
201-500
964
501-1,000
526
1,001-5,000
546
5,001-10,000
105
10001+
93

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among industrial security consultant companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for industrial security consultant companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “industrial security consultant companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names industrial security consultant companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among industrial security consultant companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 31,719 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Industrial security consultant companies by location

71 lists · largest first

Every Industrial security consultant 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names industrial security consultant companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many industrial security consultant companies are there worldwide?

RevenueBase identified 15,242 industrial security consultant companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Gocil Tecnologia EM Segurança E Serviços, headquartered in Sao Paulo, tops this list with the largest team on record.

Which country has the most industrial security consultant companies?

The United States leads with 2,661 companies, followed by the United Kingdom (1,189) and India (840). Every industrial security consultant companies list by country and city is linked on this page.

Which city has the most industrial security consultant companies?

London leads with 327 headquartered companies, followed by Sao Paulo (206) and New Delhi (91).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 31,719 verified decision-maker contacts tracked across these 15,242 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.