Company lists · Data refreshed September 2026
Top 25 Security patrol services worldwide
RevenueBase identified 3,352 security patrol services worldwide as of September 2026 and tracks 59,807 professional contacts across them, including 3,064 with verified work emails. The United States is the largest market and London the largest hub.
This list covers security patrol services 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 29, 2026. Country and city lists for security patrol services 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.
The 25 largest security patrol services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,038 contacts → | ||||
Partial evidence “Excelsior Defense is a security and investigations company based out of St.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,612 contacts → | ||||
Partial evidence “EVERYWHERE SECURITY MATTERS.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,699 contacts → | ||||
Indirect evidence “نحن شركه تعمل في مجال الحراسات والخدمات الامنيه نقدم افضل الخدمات:*مشرفين امن *حراس امن *سيارات امنيه” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,331 contacts → | ||||
Partial evidence “A Embrasil é especializada em oferecer serviços garantindos de segurança patrimonial para diversos seguimentos do mercado: bancos, indústrias, escolas, redes de varejo, comércios…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 934 contacts → | ||||
Partial evidence “A ENGEFORT tem a missão de prestar serviços de vigilância patrimonial, escolta de veículos, proteção VIP a executivos, artistas e autoridades.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 626 contacts → | ||||
Strong evidence “Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 563 contacts → | ||||
Partial evidence “Empresa especializada em soluções personalizadas de Segurança Privada, contando com serviços de Vigilância Patrimonial, Segurança Pessoal e Segurança Eletrônica.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 394 contacts → | ||||
Indirect evidence “Segurança é liberdade para ir mais longe!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 346 contacts → | ||||
Partial evidence “Cambridge Security Services is a private security company that has been in business for more than 30 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 334 contacts → | ||||
Partial evidence “A Escolta foi fundada em 1991 e atua em todo o estado de São Paulo nos serviços de Segurança Patrimonia, Escolta de valores, Portarias, Bombeiros, Copeiras, Motoristas…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 312 contacts → | ||||
Indirect evidence “Compañía líder a nivel nacional en Seguridad Privada, especializada en seguridad de obras civiles, centros comerciales, unidades residenciales, aeropuertos y otros sectores.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 295 contacts → | ||||
Partial evidence “Advantage Security, Incorporated (ASI) is a locally owned and operated full service security provider with an unmatched reputation as the leading provider throughout Colorado.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 288 contacts → | ||||
Indirect evidence “Established over 100 years ago, Southern Cross Protection is an Australian-owned and operated company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 248 contacts → | ||||
Partial evidence “Founded in 1997, Genesis Security Group is today one of Vancouver’s top security firms.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 248 contacts → | ||||
Strong evidence “Private Sector Security is a Southern California based contract security guard and patrol services provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 241 contacts → | ||||
Partial evidence “GuardTexas is a Texas-owned security services provider delivering professional, dependable protection since 1976.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 219 contacts → | ||||
Indirect evidence “Protek nace en 1990 con una visión muy clara: construir un mundo más seguro.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 208 contacts → | ||||
Partial evidence “Focus on Security.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 207 contacts → | ||||
Indirect evidence “Há mais de 15 anos no mercado, a Nexus Vigilância está presente em mais de 600 cidades, distribuídas entre os estados de Minas Gerais, Rio de Janeiro, São Paulo e Espírito Santo…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 204 contacts → | ||||
Partial evidence “Synergy is a dynamic client-centric and socially responsible security agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 199 contacts → | ||||
Partial evidence “We are a privately owned California security services provider who is committed to excellence in service in every aspect of our business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 194 contacts → | ||||
Partial evidence “Industrial, residential, commercial and retail armed and unarmed uniformed guards street patrols, under cover agents, armed response and alarm monitoring, training, cctv and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 192 contacts → | ||||
Partial evidence “Static Guards Mobile Patrols Crowd Control” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 188 contacts → | ||||
Indirect evidence “Líderes es una empresa de Seguridad Integral la cual brinda diferentes servicios desde 1993, entre ellos, servicio de seguridad física con vigiladores capacitados, custodia de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 173 contacts → | ||||
Partial evidence “Established in 2008, Titan Protection and Consulting is a leading-edge security firm specializing in crime prevention and detection for hundreds of companies nationwide.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security patrol services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security patrol services.
- Partial evidence
- Its own public description names part of security patrol services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security patrol services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,352 security patrol services worldwide
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Security patrol services worldwide at a glance
As of Sep 29, 2026Companies by employee count
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 security patrol services, 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 security patrol services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security patrol services”. 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 security patrol services), 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 security patrol services, 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, 3,064 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 29, 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.
Security patrol services by location
11 lists · largest firstEvery Security patrol services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security patrol services based in the United States905
- Security patrol services based in Brazil282
- Security patrol services based in the United Kingdom245
- Security patrol services based in Canada222
- Security patrol services based in France149
- Security patrol services based in Australia115
- Security patrol services based in Germany106
- Security patrol services based in the Netherlands36
- Security patrol services based in Switzerland26
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 security patrol services, 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 security patrol services are there worldwide?
RevenueBase identified 3,352 security patrol services 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?
Unemployed, headquartered in St. Petersburg, tops this list with the largest team on record.
Which country has the most security patrol services?
The United States leads with 905 companies, followed by Brazil (282) and the United Kingdom (245). Every security patrol services list by country and city is linked on this page.
Which city has the most security patrol services?
London leads with 56 headquartered companies, followed by Sao Paulo (53) and Los Angeles (41).
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 3,064 verified decision-maker contacts tracked across these 3,352 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 29, 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.