Company lists · Data refreshed September 2026
Top 25 Commercial security contractors worldwide
RevenueBase identified 22,718 commercial security contractors worldwide as of September 2026 and tracks 295,776 professional contacts across them, including 45,838 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers commercial security contractors 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 security contractors 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 security contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 14,199 contacts → | ||||
Partial evidence “Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,169 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 3,592 contacts → | ||||
Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 2,678 contacts → | ||||
Indirect evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,165 contacts → | ||||
Indirect 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. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 1,632 contacts → | ||||
Indirect evidence “Over 90 years of protecting the things that matter, we’ve seen more than most.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,408 contacts → | ||||
Indirect evidence “Alarm.com is the leading platform for the intelligently connected property.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,406 contacts → | ||||
Partial evidence “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,361 contacts → | ||||
Indirect evidence “O Grupo Comando G8 é referência nacional na implantação e operação de soluções integradas em segurança e serviços.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,287 contacts → | ||||
Partial evidence “Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,276 contacts → | ||||
Partial evidence “Established in Safe Haven Security has grown to become the nation’s largest ADT-authorized dealer, trusted by homeowners and businesses across the country.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,190 contacts → | ||||
Partial evidence “DSI Security Services offers armed and unarmed uniformed security guard services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,178 contacts → | ||||
Indirect evidence “With a wealth of 400+ years of cumulative experience of our senior management and a diverse team of trained professionals in India, Singapore and UK, we have consolidated our…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,138 contacts → | ||||
Partial evidence “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,120 contacts → | ||||
Partial evidence “Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,068 contacts → | ||||
Partial evidence “Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,062 contacts → | ||||
Indirect evidence “Founded in 1982, St.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,007 contacts → | ||||
Indirect evidence “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 893 contacts → | ||||
Partial evidence “Security Company Electronics developers Systems integrator” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 891 contacts → | ||||
Partial evidence “Securitas es socio líder en soluciones de protección inteligente.” 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 security contractors. 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 security contractors.
- Partial evidence
- Its own public description names part of commercial security contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name commercial security contractors. 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 22,718 commercial security contractors worldwide
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Commercial security contractors 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 security contractors, 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 security contractors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “commercial security contractors”. 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 security contractors), 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 security contractors, 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, 45,838 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 security contractors by location
65 lists · largest firstEvery Commercial security contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Commercial security contractors based in the United States4,500
- Commercial security contractors based in the United Kingdom2,325
- Commercial security contractors based in Brazil1,753
- Commercial security contractors based in France1,048
- Commercial security contractors based in India895
- Commercial security contractors based in Canada708
- Commercial security contractors based in Italy674
- Commercial security contractors based in Australia588
- Commercial security contractors based in Germany532
- Commercial security contractors based in the Netherlands494
- Commercial security contractors based in Spain445
- Commercial security contractors based in South Africa388
- Commercial security contractors based in Mexico363
- Commercial security contractors based in Argentina300
- Commercial security contractors based in Belgium277
- Commercial security contractors based in Türkiye266
- Commercial security contractors based in Colombia208
- Commercial security contractors based in Sweden204
- Commercial security contractors based in Chile201
- Commercial security contractors based in the United Arab Emirates200
- Commercial security contractors based in Poland197
- Commercial security contractors based in Peru153
- Commercial security contractors based in Ireland135
- Commercial security contractors based in Switzerland130
- Commercial security contractors based in Portugal120
- Commercial security contractors based in Romania106
- Commercial security contractors based in Denmark95
- Commercial security contractors based in New Zealand95
- Commercial security contractors based in Saudi Arabia86
- Commercial security contractors based in Malaysia67
- Commercial security contractors based in Greece61
- Commercial security contractors based in Hungary59
- Commercial security contractors based in Norway46
- Commercial security contractors based in Qatar39
- Commercial security contractors based in Austria38
- Commercial security contractors based in Finland38
- Commercial security contractors based in Uruguay36
- Commercial security contractors based in Serbia33
Cities
- Commercial security contractors based in Sao Paulo, Brazil332
- Commercial security contractors based in London, United Kingdom265
- Commercial security contractors based in Rio De Janeiro, Brazil100
- Commercial security contractors based in New York, United States83
- Commercial security contractors based in Houston, United States78
- Commercial security contractors based in Toronto, Canada64
- Commercial security contractors based in Los Angeles, United States62
- Commercial security contractors based in Johannesburg, South Africa61
- Commercial security contractors based in Mumbai, India60
- Commercial security contractors based in Belo Horizonte, Brazil57
- Commercial security contractors based in Manchester, United Kingdom56
- Commercial security contractors based in Miami, United States56
- Commercial security contractors based in Curitiba, Brazil51
- Commercial security contractors based in Pune, India51
- Commercial security contractors based in Dallas, United States50
- Commercial security contractors based in Calgary, Canada43
- Commercial security contractors based in Birmingham, United Kingdom42
- Commercial security contractors based in Chicago, United States37
- Commercial security contractors based in Atlanta, United States34
- Commercial security contractors based in Montreal, Canada34
- Commercial security contractors based in Phoenix, United States29
- Commercial security contractors based in Indianapolis, United States28
- Commercial security contractors based in Denver, United States27
- Commercial security contractors based in Austin, United States26
- Commercial security contractors based in Bengaluru, India26
- Commercial security contractors based in Tampa, United States26
- Commercial security contractors 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 security contractors, 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 security contractors are there worldwide?
RevenueBase identified 22,718 commercial security contractors 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?
Verisure, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most commercial security contractors?
The United States leads with 4,500 companies, followed by the United Kingdom (2,325) and Brazil (1,753). Every commercial security contractors list by country and city is linked on this page.
Which city has the most commercial security contractors?
Sao Paulo leads with 332 headquartered companies, followed by London (275) and Rio De Janeiro (100).
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 45,838 verified decision-maker contacts tracked across these 22,718 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.