Company lists · Data refreshed November 2026

Top 25 Security staffing services worldwide

RevenueBase identified 12,040 company matches for security staffing services worldwide as of November 2026 and tracks 324,746 professional contacts across them, including 19,958 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for security staffing 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 security staffing 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
12,040Companies
324,746Contacts tracked
19,958Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest security staffing services worldwide

Ranked by team size
Top 25 of 12,040 company matches for security staffing 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParsippany, MI, United StatesHQ recorded Nov 5, 202610001+40,551 contacts →

Exact match

“Securitas knows Security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchDubai, United Arab EmiratesHQ recorded Nov 5, 202610001+16,599 contacts →

Exact match

“Offering flexible solutions for all of the UAE’s staffing needs since 2001, Transguard Group is the region’s most trusted expert in security, facilities management, cash services…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202610001+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
4Exact matchSao Paulo, BrazilHQ recorded Nov 5, 202610001+4,705 contacts →

Exact match

“O que é trabalhar no Grupo Haganá?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNorthridge, CA, United StatesHQ recorded Nov 5, 202610001+4,090 contacts →

Exact match

“Contemporary Services Corporation (CSC) is recognized worldwide as the pioneer, expert and only employee owned company in the crowd management field.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchSt. Petersburg, FL, United StatesHQ recorded Nov 5, 2026n/a4,040 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchPasadena, CA, United StatesHQ recorded Nov 5, 202610001+3,921 contacts →

Exact match

“Everywhere Security Matters™ Inter-Con is one of the largest and fastest-growing physical security and risk management companies in the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchStockholm, SwedenHQ recorded Nov 5, 20265,001-10,0003,053 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
9Exact matchSão José, BrazilHQ recorded Nov 5, 20265,001-10,0002,635 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
10Exact matchAurora, IL, United StatesHQ recorded Nov 5, 20265,001-10,0002,393 contacts →

Exact match

“Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchToronto, ON, CanadaHQ recorded Nov 5, 20261,001-5,0002,372 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSt. Louis, KY, United StatesHQ recorded Nov 5, 20265,001-10,0001,872 contacts →

Exact match

“Whelan’s commitment to quality and service has made us one of the foremost respected, successful and fastest growing companies in the industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchجده, Saudi ArabiaHQ recorded Nov 5, 2026n/a1,865 contacts →

Exact match

“نحن شركه تعمل في مجال الحراسات والخدمات الامنيه نقدم افضل الخدمات:*مشرفين امن *حراس امن *سيارات امنيه”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNorth York, ON, CanadaHQ recorded Nov 5, 20265,001-10,0001,631 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202610001+1,562 contacts →

Exact match

“Guardsmark, LLC provides security services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 5, 20265,001-10,0001,559 contacts →

Exact match

“TSS is the UK’s largest retail specialist security company, employing over 7500+ security personnel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBethesda, United StatesHQ recorded Nov 5, 20265,001-10,0001,547 contacts →

Exact match

“Admiral Security Services provides professional armed and unarmed uniformed security officers, unparalleled site management and unwavering corporate support that exceeds client…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchNew Orleans, LA, United StatesHQ recorded Nov 5, 20261,001-5,0001,540 contacts →

Exact match

“Weiser Security Services is the 11th largest security service provider in the U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchCuritiba, BrazilHQ recorded Nov 5, 20261,001-5,0001,461 contacts →

Exact match

“A Embrasil é especializada em oferecer serviços garantindos de segurança patrimonial para diversos seguimentos do mercado: bancos, indústrias, escolas, redes de varejo, comércios…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchDiegem, BelgiumHQ recorded Nov 5, 20265,001-10,0001,449 contacts →

Exact match

“See a different world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLeicester, United KingdomHQ recorded Nov 5, 20261,001-5,0001,303 contacts →

Exact match

“With over 45 years of experience, Showsec is a leading name in the UK’s live event security sector.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchDothan, AL, United StatesHQ recorded Nov 5, 20261,001-5,0001,277 contacts →

Exact match

“DSI Security Services offers armed and unarmed uniformed security guard services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Nov 5, 20261,001-5,0001,209 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 · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPittsburgh, PA, United StatesHQ recorded Nov 5, 20265,001-10,0001,168 contacts →

Exact match

“Founded in 1982, St.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchWarsaw, PolandHQ recorded Nov 5, 202610001+1,154 contacts →

Exact match

“Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 12,040 security staffing services worldwide

See the full list, filter by size, metro and specialty, and access 19,958 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Security staffing services worldwide at a glance

As of Nov 5, 2026
6.1%Verified-email coverage
27.0Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
2,900
11-50
3,425
51-200
2,959
201-500
1,243
501-1,000
622
1,001-5,000
543
5,001-10,000
90
10001+
80

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 security staffing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “security staffing 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 19,958 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.

Security staffing services by location

41 lists · largest first

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

How many security staffing services are there worldwide?

RevenueBase identified 12,040 company matches for security staffing 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?

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 security staffing services?

The United States leads with 2,382 companies, followed by the United Kingdom (1,459) and India (784). Every security staffing services list by country and city is linked on this page.

Which city has the most security staffing services?

London leads with 379 company records, followed by Sao Paulo (122) and Los Angeles (100).

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 19,958 professional contacts with verified work emails tracked across these 12,040 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.

Ready to reach these companies? Verified emails and direct dials for all 12,040 security staffing services worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.