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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
6,380Companies
104,989Contacts tracked
22,560Verified emails
25,607Mobile numbers
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The 25 largest home security system companies worldwide

Ranked by team size
Top 25 of 6,380 home security system companies worldwide, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to home security system companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceBoca Raton, FL, United StatesHQ checked Sep 3, 2026n/a20,489 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, 2026
2Indirect evidenceStaines, United KingdomHQ checked Sep 3, 202610001+6,212 contacts →

Indirect evidence

“Making the world a safer place.”

Source: RevenueBase Database · checked Sep 3, 2026
3Partial evidenceIstanbul, TürkiyeHQ checked Sep 3, 20261,001-5,0002,126 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, 2026
4Indirect evidenceSanta Monica, CA, United StatesHQ checked Sep 3, 20261,001-5,0001,498 contacts →

Indirect evidence

“Making Neighborhoods Safer”

Source: RevenueBase Database · checked Sep 3, 2026
5Partial evidenceRomeoville, KS, United StatesHQ checked Sep 3, 20261,001-5,0001,405 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, 2026
6Partial evidenceWarrendale, OH, United StatesHQ checked Sep 3, 20261,001-5,0001,286 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, 2026
7Partial evidenceNorth Kansas City, MO, United StatesHQ checked Sep 3, 20261,001-5,0001,280 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, 2026
8Indirect evidenceBoston, MA, United StatesHQ checked Sep 3, 2026501-1,0001,237 contacts →

Indirect evidence

“Being safe should be simple.”

Source: RevenueBase Database · checked Sep 3, 2026
9Partial evidenceDallas, TX, United StatesHQ checked Sep 3, 20261,001-5,0001,216 contacts →

Partial evidence

“Brinks Home, headquartered in Dallas, Texas, stands for platinum-grade protection.”

Source: RevenueBase Database · checked Sep 3, 2026
10Strong evidenceIndianapolis, IN, United StatesHQ checked Sep 3, 20261,001-5,000886 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, 2026
11Strong evidenceWest Palm Beach, NC, United StatesHQ checked Sep 3, 2026501-1,000850 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, 2026
12Strong evidenceCharlotte, SC, United StatesHQ checked Sep 3, 2026501-1,000761 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, 2026
13Strong evidenceWarrendale, PA, United StatesHQ checked Sep 3, 2026501-1,000677 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, 2026
14Indirect evidenceSão José, BrazilHQ checked Sep 3, 20261,001-5,000621 contacts →

Indirect evidence

“O Grupo Khronos é referência nacional em soluções integradas de segurança, tecnologia e IoT.”

Source: RevenueBase Database · checked Sep 3, 2026
15Strong evidenceTulsa, FL, United StatesHQ checked Sep 3, 2026501-1,000577 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, 2026
16Strong evidenceZollikofen, SwitzerlandHQ checked Sep 3, 2026501-1,000543 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, 2026
17Indirect evidenceSyracuse, CA, United StatesHQ checked Sep 3, 2026501-1,000494 contacts →

Indirect evidence

“Rapid Response Monitoring is a leading provider of professional monitoring services founded in 1992.”

Source: RevenueBase Database · checked Sep 3, 2026
18Indirect evidenceLehi, ID, United StatesHQ checked Sep 3, 2026501-1,000446 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, 2026
19Partial evidenceAmityville, NY, United StatesHQ checked Sep 3, 2026501-1,000427 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, 2026
20Partial evidenceSpringfield, MO, United StatesHQ checked Sep 3, 2026201-500397 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, 2026
21Strong evidenceSouthfield, OH, United StatesHQ checked Sep 3, 2026501-1,000391 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, 2026
22Indirect evidenceMississauga, ON, CanadaHQ checked Sep 3, 20261,001-5,000348 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, 2026
23Indirect evidenceSpainHQ checked Sep 3, 2026201-500333 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, 2026
24Partial evidenceNashville, AL, United StatesHQ checked Sep 3, 2026201-500325 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, 2026
25Indirect evidenceSyosset, NY, United StatesHQ checked Sep 3, 2026201-500303 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 3, 2026

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, 2026
21.5%Verified-email coverage
24.4%Mobile-number coverage
16.5Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · London
Sep 3, 2026Page data refreshed

Companies by employee count

1-10
3,559
11-50
1,986
51-200
495
201-500
95
501-1,000
37
1,001-5,000
33
5,001-10,000
4
10001+
3

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 first

Every 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

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.