Company lists · Data refreshed September 2026

Top 25 Alarm system companies worldwide

Name: Alarm system companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 14,866 companies tracked

RevenueBase identified 14,866 company matches for alarm system companies worldwide as of September 2026 and tracks 203,721 professional contacts across them, including 39,900 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for alarm system companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026. Country and city lists for alarm system companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

14,866Companies

203,721Contacts tracked

39,900Verified emails

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The 25 largest alarm system companies worldwide

Ranked by team size

Top 25 of 14,866 company matches for alarm system companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ADT	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 19, 2026	n/a	20,475 contacts →
	Exact match “ADT is the most trusted name in smart home security, helping protect and connect what matters most at home and beyond.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Verisure	Exact match	Global Hq - Versoix, GermanyHQ recorded Sep 19, 2026	10001+	14,199 contacts →
	Exact match “Verisure is the global leader in professionally monitored security services by customers served, with a market-leading presence across Europe and Latin America.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Chubb Fire & Security	Exact match	Staines, United KingdomHQ recorded Sep 19, 2026	10001+	6,169 contacts →
	Exact match “Making the world a safer place.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Pronet Security Services	Exact match	Istanbul, TürkiyeHQ recorded Sep 19, 2026	1,001-5,000	2,126 contacts →
	Exact match “Pronet is the leading electronic security company that offers residential and commercial security solutions in Turkey.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Everon	Exact match	Irving, TX, United StatesHQ recorded Sep 19, 2026	1,001-5,000	2,045 contacts →
	Exact match “Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Protection 1 Security Solutions	Exact match	Romeoville, IL, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,406 contacts →
	Exact match “As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Vector Security	Exact match	Warrendale, PA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,287 contacts →
	Exact match “Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Safe Haven Security Services, LLC	Exact match	North Kansas City, MO, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,276 contacts →
	Exact match “Established in Safe Haven Security has grown to become the nation’s largest ADT-authorized dealer, trusted by homeowners and businesses across the country.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Simplisafe	Exact match	Boston, MA, United StatesHQ recorded Sep 19, 2026	501-1,000	1,253 contacts →
	Exact match “Being safe should be simple.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Brinks Home	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,220 contacts →
	Exact match “Brinks Home, headquartered in Dallas, Texas, stands for platinum-grade protection.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Titan Security Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,138 contacts →
	Exact match “At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	PER MAR Security Services	Exact match	Davenport, IA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,120 contacts →
	Exact match “Per Mar Security Services is the largest full-service security solutions provider in the Midwest.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Solid Security Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Sep 19, 2026	10001+	1,068 contacts →
	Exact match “Solid Security to doświadczenie, wiedza oraz profesjonalizm działań na rynku ochrony osób i mienia.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Sector Alarm Norge	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	1,001-5,000	953 contacts →
	Exact match “Sector Alarm er en av Europas ledende leverandører av sikkerhet, og har mer enn 650 fornøyde og trygge kunder i Europa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Strong Segurança, S.A	Exact match	Amadora, PortugalHQ recorded Sep 19, 2026	5,001-10,000	893 contacts →
	Exact match “Security Company Electronics developers Systems integrator” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Securitas Perú	Exact match	Magdalena Del Mar, PeruHQ recorded Sep 19, 2026	1,001-5,000	891 contacts →
	Exact match “Securitas es socio líder en soluciones de protección inteligente.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Defenders	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 19, 2026	1,001-5,000	885 contacts →
	Exact match “DEFENDERS is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Security 101	Exact match	West Palm Beach, FL, United StatesHQ recorded Sep 19, 2026	501-1,000	849 contacts →
	Exact match “Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Securitas Electronic Security, INC	Exact match	Uniontown, OH, United StatesHQ recorded Sep 19, 2026	10001+	839 contacts →
	Exact match “Securitas knows Security.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Koorsen Fire And Security	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 19, 2026	1,001-5,000	834 contacts →
	Exact match “Koorsen Fire & Security is a family-owned operation that has kept homes and businesses safe for more than 70 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	CPI Security	Exact match	Charlotte, NC, United StatesHQ recorded Sep 19, 2026	501-1,000	763 contacts →
	Exact match “For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Chubb Fire & Security Canada	Exact match	Mississauga, ON, CanadaHQ recorded Sep 19, 2026	1,001-5,000	759 contacts →
	Exact match “Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Guardian Protection	Exact match	Warrendale, PA, United StatesHQ recorded Sep 19, 2026	501-1,000	677 contacts →
	Exact match “Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Sabico Seguridad	Exact match	SpainHQ recorded Sep 19, 2026	1,001-5,000	659 contacts →
	Exact match “comienzos de 1989 se funda SABICO SEGURIDAD S.A, estando inscrita en el Registro de Empresas de Seguridad con el nº 1731.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Securitas Uruguay	Exact match	Montevideo, UruguayHQ recorded Sep 19, 2026	1,001-5,000	612 contacts →
	Exact match “Securitas es el principal socio de servicios de protección inteligente del mundo.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “alarm system companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,866 alarm system companies worldwide

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Alarm system companies worldwide at a glance

As of Sep 19, 2026

19.6%Verified-email coverage

13.7Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

7,629

11-50

5,038

51-200

1,453

201-500

331

501-1,000

122

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for alarm system companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “alarm system companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 39,900 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Alarm system companies by location

42 lists · largest first

Every Alarm 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “alarm system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many alarm system companies are there worldwide?

RevenueBase identified 14,866 company matches for alarm system companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ADT tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most alarm system companies?

The United States leads with 3,276 companies, followed by the United Kingdom (1,921) and Brazil (946). Every alarm system companies list by country and city is linked on this page.

Which city has the most alarm system companies?

London leads with 171 company records, followed by Sao Paulo (158) and Houston (54).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 39,900 professional contacts with verified work emails tracked across these 14,866 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 SmartSearch, 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.