Company lists · Data refreshed September 2026
Top 25 Commercial real estate security companies worldwide
RevenueBase identified 18,950 commercial real estate security companies worldwide as of September 2026 and tracks 665,950 professional contacts across them, including 51,108 with verified work emails. The United States is the largest market and London the largest hub.
This list covers commercial real estate security 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 27, 2026. Country and city lists for commercial real estate security 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.
The 25 largest commercial real estate security companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 79,699 contacts → | ||||
Partial evidence “G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 62,804 contacts → | ||||
Partial evidence “Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 40,747 contacts → | ||||
Indirect evidence “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 38,634 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 7,986 contacts → | ||||
Partial evidence “One of the largest companies in the professional services and security markets in Brazil.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,530 contacts → | ||||
Indirect evidence “A SegurPro é o próximo passo em segurança privada.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 4,292 contacts → | ||||
Indirect evidence “O que é trabalhar no Grupo Haganá?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4,038 contacts → | ||||
Partial evidence “Excelsior Defense is a security and investigations company based out of St.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,843 contacts → | ||||
Partial evidence “Securitas vous apporte son savoir‑faire et ses compétences dans la sécurisation de votre entreprise.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,612 contacts → | ||||
Partial evidence “EVERYWHERE SECURITY MATTERS.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,140 contacts → | ||||
Indirect evidence “Somos la empresa de seguridad de mayor prestigio en el Perú" Comenzamos en el año 1989, con solo 4 hombres de Seguridad, que creyeron en nuestro estilo de liderazgo y decidieron…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3,004 contacts → | ||||
Partial evidence “Securitas is a global knowledge leader in security.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,462 contacts → | ||||
Indirect evidence “A Orsegups atua desde 1977 na prestação de serviços de segurança e terceirização de serviços especializados.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,365 contacts → | ||||
Partial evidence “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2,266 contacts → | ||||
Partial evidence “Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2,174 contacts → | ||||
Partial evidence “Through an ISO® 9001:2015 Certified Quality Management System (QMS), Walden Security has earned an award-winning reputation for business excellence and employee satisfaction…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2,165 contacts → | ||||
Partial evidence “Com mais de 8 mil colaboradores, presente em 11 estados, vencedora do Prêmio Valor Carreira por sete vezes consecutivas, certificada pela GPTW e única empresa brasileira membro do…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2,126 contacts → | ||||
Strong evidence “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,045 contacts → | ||||
Strong evidence “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,922 contacts → | ||||
Indirect evidence “Elke dag zetten onze collega’s zich in voor jouw veiligheid en die van iedereen om jou heen, zodat jij je veilig voelt en veilig bent.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,813 contacts → | ||||
Partial evidence “At Wilson Security, we are committed to building a safer future for everyone.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,781 contacts → | ||||
Indirect evidence “Whelan’s commitment to quality and service has made us one of the foremost respected, successful and fastest growing companies in the industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,727 contacts → | ||||
Indirect evidence “HSS is now Tarian!” Source: RevenueBase Database · checked Sep 27, 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: commercial real estate security companies. 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 commercial real estate security companies.
- Partial evidence
- Its own public description names part of commercial real estate security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name commercial real estate security companies. 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 18,950 commercial real estate security companies worldwide
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Commercial real estate security companies worldwide at a glance
As of Sep 27, 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 commercial real estate security 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 commercial real estate security companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “commercial real estate security 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 commercial real estate security 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 commercial real estate security 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, 51,108 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 27, 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.
Commercial real estate security companies by location
62 lists · largest firstEvery Commercial real estate security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Commercial real estate security companies based in the United States3,808
- Commercial real estate security companies based in the United Kingdom1,719
- Commercial real estate security companies based in Brazil1,465
- Commercial real estate security companies based in France973
- Commercial real estate security companies based in India837
- Commercial real estate security companies based in Germany738
- Commercial real estate security companies based in Canada683
- Commercial real estate security companies based in Australia523
- Commercial real estate security companies based in the Netherlands519
- Commercial real estate security companies based in Italy480
- Commercial real estate security companies based in South Africa435
- Commercial real estate security companies based in Mexico326
- Commercial real estate security companies based in Spain269
- Commercial real estate security companies based in Argentina239
- Commercial real estate security companies based in Colombia206
- Commercial real estate security companies based in Chile181
- Commercial real estate security companies based in Peru176
- Commercial real estate security companies based in Belgium155
- Commercial real estate security companies based in the United Arab Emirates147
- Commercial real estate security companies based in Switzerland143
- Commercial real estate security companies based in Sweden114
- Commercial real estate security companies based in Poland106
- Commercial real estate security companies based in Türkiye91
- Commercial real estate security companies based in Malaysia80
- Commercial real estate security companies based in New Zealand71
- Commercial real estate security companies based in Denmark65
- Commercial real estate security companies based in Romania59
- Commercial real estate security companies based in Ireland55
- Commercial real estate security companies based in Greece45
- Commercial real estate security companies based in Norway39
- Commercial real estate security companies based in Qatar37
- Commercial real estate security companies based in Austria35
- Commercial real estate security companies based in Hungary33
- Commercial real estate security companies based in Uruguay29
- Commercial real estate security companies based in Finland25
Cities
- Commercial real estate security companies based in London, United Kingdom383
- Commercial real estate security companies based in Sao Paulo, Brazil296
- Commercial real estate security companies based in New York, United States116
- Commercial real estate security companies based in Los Angeles, United States109
- Commercial real estate security companies based in Houston, United States99
- Commercial real estate security companies based in Toronto, Canada93
- Commercial real estate security companies based in Miami, United States72
- Commercial real estate security companies based in Johannesburg, South Africa65
- Commercial real estate security companies based in New Delhi, India64
- Commercial real estate security companies based in Dallas, United States61
- Commercial real estate security companies based in Mumbai, India54
- Commercial real estate security companies based in Birmingham, United Kingdom52
- Commercial real estate security companies based in Chicago, United States46
- Commercial real estate security companies based in Manchester, United Kingdom45
- Commercial real estate security companies based in Atlanta, United States43
- Commercial real estate security companies based in Calgary, Canada39
- Commercial real estate security companies based in Phoenix, United States38
- Commercial real estate security companies based in Austin, United States37
- Commercial real estate security companies based in Belo Horizonte, Brazil37
- Commercial real estate security companies based in Mississauga, Canada36
- Commercial real estate security companies based in Pune, India35
- Commercial real estate security companies based in Leeds, United Kingdom31
- Commercial real estate security companies based in Las Vegas, United States30
- Commercial real estate security companies based in Tampa, United States29
- Commercial real estate security companies based in Denver, United States27
- Commercial real estate security companies based in San Diego, United States27
- Commercial real estate security companies based in Charlotte, United States25
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 commercial real estate security 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 commercial real estate security companies are there worldwide?
RevenueBase identified 18,950 commercial real estate security 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?
G4s, headquartered in London, tops this list with the largest team on record.
Which country has the most commercial real estate security companies?
The United States leads with 3,808 companies, followed by the United Kingdom (1,719) and Brazil (1,465). Every commercial real estate security companies list by country and city is linked on this page.
Which city has the most commercial real estate security companies?
London leads with 394 headquartered companies, followed by Sao Paulo (296) and New York (116).
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 51,108 verified decision-maker contacts tracked across these 18,950 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 27, 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.