Company lists · Data refreshed September 2026
Top 25 Home security system companies worldwide
RevenueBase identified 6,380 home security system companies worldwide as of September 2026 and tracks 104,989 professional contacts across them, including 22,560 with verified work emails and 25,607 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers home security system 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 3, 2026. Country and city lists for home security system 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 home security system companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,489 contacts → | ||||
Strong evidence “ADT is the most trusted name in smart home security, helping protect and connect what matters most at home and beyond.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,212 contacts → | ||||
Indirect evidence “Making the world a safer place.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,126 contacts → | ||||
Partial evidence “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,498 contacts → | ||||
Indirect evidence “Making Neighborhoods Safer” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,405 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 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,286 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 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,280 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 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,237 contacts → | ||||
Indirect evidence “Being safe should be simple.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,216 contacts → | ||||
Partial evidence “Brinks Home, headquartered in Dallas, Texas, stands for platinum-grade protection.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 886 contacts → | ||||
Strong evidence “DEFENDERS is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 850 contacts → | ||||
Strong evidence “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 761 contacts → | ||||
Strong evidence “For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 677 contacts → | ||||
Strong evidence “Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 621 contacts → | ||||
Indirect evidence “O Grupo Khronos é referência nacional em soluções integradas de segurança, tecnologia e IoT.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 577 contacts → | ||||
Strong evidence “Alert 360 security is a trusted and best-in-class provider of reliable security solutions for homes and businesses.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 543 contacts → | ||||
Strong evidence “Securiton AG has been a leading manufacturer and installer of alarm and security systems since 1948 and is part of the Swiss Securitas Group.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 494 contacts → | ||||
Indirect evidence “Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 446 contacts → | ||||
Indirect evidence “When you partner with SafeStreets, you’re joining forces with America’s #1 choice for helping them protect the things they value most.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 427 contacts → | ||||
Partial evidence “NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 397 contacts → | ||||
Partial evidence “DMP specializes in delivering innovative security solutions, including burglary, fire, access control and video security products.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 391 contacts → | ||||
Strong evidence “Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 348 contacts → | ||||
Indirect evidence “At ADT by TELUS, helping to protect our customers has been our sole mission for over 125 years.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 333 contacts → | ||||
Indirect evidence “Sector Alarm es uno de los principales proveedores de seguridad de Europa con más de clientes satisfechos y seguros.” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 325 contacts → | ||||
Partial evidence “Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Source: RevenueBase Database · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 303 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 3, 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: home security system 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 home security system companies.
- Partial evidence
- Its own public description names part of home security system companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name home security system 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 6,380 home security system companies worldwide
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Home security system companies worldwide at a glance
As of Sep 3, 2026Companies by employee count
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 home security system 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
- 21 countries, largest first: the United States, the United Kingdom, Brazil, France, Canada, Italy, Australia, the Netherlands, Germany, India and 11 more. Country and city lists for home security system companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “home security system 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 home security system 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 home security system 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, 22,560 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 between September 3, 2026 and September 14, 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.
Home security system companies by location
24 lists · largest firstEvery Home security system companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Home security system companies based in the United States2,403
- Home security system companies based in the United Kingdom746
- Home security system companies based in Brazil477
- Home security system companies based in France412
- Home security system companies based in Canada363
- Home security system companies based in Italy231
- Home security system companies based in Australia221
- Home security system companies based in the Netherlands220
- Home security system companies based in Germany210
- Home security system companies based in India187
- Home security system companies based in Spain175
- Home security system companies based in Belgium146
- Home security system companies based in Argentina110
- Home security system companies based in Sweden110
- Home security system companies based in Türkiye84
- Home security system companies based in South Africa70
- Home security system companies based in Ireland46
- Home security system companies based in Portugal46
- Home security system companies based in New Zealand43
- Home security system companies based in Switzerland42
- Home security system companies based in Denmark38
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 home security system 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 home security system companies are there worldwide?
RevenueBase identified 6,380 home security system 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?
ADT, headquartered in Boca Raton, tops this list with the largest team on record.
Which country has the most home security system companies?
The United States leads with 2,403 companies, followed by the United Kingdom (746) and Brazil (477). Every home security system companies list by country and city is linked on this page.
Which city has the most home security system companies?
London leads with 80 headquartered companies, followed by Sao Paulo (79) and Houston (36).
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 22,560 verified decision-maker contacts tracked across these 6,380 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 3, 2026 and September 14, 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.