Company lists · Data refreshed September 2026
Top 25 Industrial security companies worldwide
RevenueBase identified 21,905 industrial security companies worldwide as of September 2026 and tracks 694,075 professional contacts across them, including 65,086 with verified work emails. The United States is the largest market and London the largest hub.
This list covers industrial 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 28, 2026. Country and city lists for industrial 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 industrial security companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40,747 contacts → | ||||
Indirect evidence “50 Years of Excellence: Experience, Innovation, and Commitment to Safety.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 38,634 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10,554 contacts → | ||||
Indirect evidence “Com uma história sólida de sucesso desde sua fundação em 1967, a Verzani & Sandrini se destaca como líder nacional em diversos serviços terceirizados.” Source: RevenueBase Database · checked Sep 28, 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 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 6,854 contacts → | ||||
Indirect evidence “Sempre inovador, o Grupo Souza Lima desenvolve soluções completas e híbridas, que realmente funcionam, em serviços de Segurança, Limpeza e Facilities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6,169 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5,384 contacts → | ||||
Partial evidence “Tyco offers comprehensive security solutions to protect people, facilities, and assets as part of Johnson Controls world leading portfolio of building products, technologies…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4,835 contacts → | ||||
Partial evidence “As one of Canada’s Best Managed Companies, boasting Canada’s 10 Most Admired Corporate Cultures, Paladin is Canada’s leading security company, with services and superior expertise…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4,610 contacts → | ||||
Partial evidence “Certis is a leading advanced integrated security organisation that develops and delivers multi-disciplinary smart security and integrated services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4,530 contacts → | ||||
Indirect evidence “A SegurPro é o próximo passo em segurança privada.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4,292 contacts → | ||||
Indirect evidence “O que é trabalhar no Grupo Haganá?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4,038 contacts → | ||||
Partial evidence “Excelsior Defense is a security and investigations company based out of St.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3,612 contacts → | ||||
Partial evidence “EVERYWHERE SECURITY MATTERS.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3,119 contacts → | ||||
Partial evidence “Tyco is now Johnson Controls, the world leader in fire protection, security, HVAC, building controls and energy storage.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3,004 contacts → | ||||
Partial evidence “Securitas is a global knowledge leader in security.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2,365 contacts → | ||||
Partial evidence “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Source: RevenueBase Database · checked Sep 28, 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: industrial 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 industrial security companies.
- Partial evidence
- Its own public description names part of industrial security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name industrial 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 21,905 industrial security companies worldwide
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Industrial security companies worldwide at a glance
As of Sep 28, 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 industrial 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 industrial security companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “industrial 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 industrial 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 industrial 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, 65,086 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 companies by location
74 lists · largest firstEvery Industrial security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Industrial security companies based in the United States3,139
- Industrial security companies based in the United Kingdom1,940
- Industrial security companies based in Brazil1,685
- Industrial security companies based in India1,298
- Industrial security companies based in France1,209
- Industrial security companies based in Germany819
- Industrial security companies based in Italy660
- Industrial security companies based in Canada623
- Industrial security companies based in the Netherlands567
- Industrial security companies based in Australia514
- Industrial security companies based in Mexico464
- Industrial security companies based in South Africa459
- Industrial security companies based in Spain417
- Industrial security companies based in Argentina331
- Industrial security companies based in Colombia261
- Industrial security companies based in Chile246
- Industrial security companies based in Peru227
- Industrial security companies based in Belgium223
- Industrial security companies based in the United Arab Emirates192
- Industrial security companies based in Türkiye189
- Industrial security companies based in Switzerland155
- Industrial security companies based in Poland153
- Industrial security companies based in Sweden153
- Industrial security companies based in Saudi Arabia106
- Industrial security companies based in Pakistan105
- Industrial security companies based in Malaysia101
- Industrial security companies based in Ecuador98
- Industrial security companies based in Portugal97
- Industrial security companies based in Romania95
- Industrial security companies based in Ireland88
- Industrial security companies based in Denmark86
- Industrial security companies based in Indonesia76
- Industrial security companies based in New Zealand65
- Industrial security companies based in Greece58
- Industrial security companies based in Qatar53
- Industrial security companies based in Hungary50
- Industrial security companies based in Norway46
- Industrial security companies based in Austria41
- Industrial security companies based in Finland39
- Industrial security companies based in Israel37
- Industrial security companies based in Costa Rica36
- Industrial security companies based in Uruguay30
- Industrial security companies based in Serbia29
Cities
- Industrial security companies based in London, United Kingdom406
- Industrial security companies based in Sao Paulo, Brazil354
- Industrial security companies based in New Delhi, India117
- Industrial security companies based in Dubai, United Arab Emirates103
- Industrial security companies based in Paris, France96
- Industrial security companies based in Mumbai, India95
- Industrial security companies based in New York, United States81
- Industrial security companies based in Toronto, Canada80
- Industrial security companies based in Los Angeles, United States78
- Industrial security companies based in Houston, United States76
- Industrial security companies based in Johannesburg, South Africa65
- Industrial security companies based in Pune, India64
- Industrial security companies based in Santiago, Chile63
- Industrial security companies based in Madrid, Spain59
- Industrial security companies based in Miami, United States58
- Industrial security companies based in Berlin, Germany56
- Industrial security companies based in Birmingham, United Kingdom56
- Industrial security companies based in Curitiba, Brazil53
- Industrial security companies based in Sydney, Australia51
- Industrial security companies based in Belo Horizonte, Brazil48
- Industrial security companies based in Manchester, United Kingdom48
- Industrial security companies based in Dallas, United States47
- Industrial security companies based in Melbourne, Australia41
- Industrial security companies based in Stockholm, Sweden38
- Industrial security companies based in Chicago, United States37
- Industrial security companies based in Bengaluru, India32
- Industrial security companies based in Mississauga, Canada32
- Industrial security companies based in Atlanta, United States29
- Industrial security companies based in Auckland, New Zealand28
- Industrial security companies based in Austin, United States27
- Industrial security companies based in Leeds, United Kingdom27
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 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 companies are there worldwide?
RevenueBase identified 21,905 industrial 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?
Allied Universal, headquartered in Irvine, tops this list with the largest team on record.
Which country has the most industrial security companies?
The United States leads with 3,139 companies, followed by the United Kingdom (1,940) and Brazil (1,685). Every industrial security companies list by country and city is linked on this page.
Which city has the most industrial security companies?
London leads with 417 headquartered companies, followed by Sao Paulo (354) and New Delhi (119).
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 65,086 verified decision-maker contacts tracked across these 21,905 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.