Company lists · Data refreshed September 2026

Top 25 Commercial security system providers worldwide

RevenueBase identified 24,980 commercial security system providers worldwide as of September 2026 and tracks 287,936 professional contacts across them, including 52,232 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers commercial security system providers 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 system providers 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 27, 2026 86% judged on-target in blind review
24,980Companies
287,936Contacts tracked
52,232Verified emails
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The 25 largest commercial security system providers worldwide

Ranked by team size
Top 25 of 24,980 commercial security system providers worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to commercial security system providers: 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
1Partial evidenceGlobal Hq - Versoix, GermanyHQ checked Sep 27, 202610001+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, 2026
2Indirect evidenceStaines, United KingdomHQ checked Sep 27, 202610001+6,169 contacts →

Indirect evidence

“Making the world a safer place.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceIssy-les-moulineaux, FranceHQ checked Sep 27, 202610001+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, 2026
4Indirect evidenceRoswell, GA, United StatesHQ checked Sep 27, 202610001+3,592 contacts →

Indirect evidence

“U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 27, 2026n/a2,678 contacts →

Partial evidence

“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceIstanbul, TürkiyeHQ checked Sep 27, 20261,001-5,0002,126 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, 2026
7Strong evidenceIrving, TX, United StatesHQ checked Sep 27, 20261,001-5,0002,045 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, 2026
8Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 27, 20265,001-10,0001,438 contacts →

Indirect evidence

“Pye-Barker Fire & Safety is the U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceRomeoville, IL, United StatesHQ checked Sep 27, 20261,001-5,0001,406 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, 2026
10Partial evidenceNew Orleans, LA, United StatesHQ checked Sep 27, 20261,001-5,0001,399 contacts →

Partial evidence

“Weiser Security Services is the 11th largest security service provider in the U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceWarrendale, PA, United StatesHQ checked Sep 27, 20261,001-5,0001,287 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, 2026
12Partial evidenceNorth Kansas City, MO, United StatesHQ checked Sep 27, 20261,001-5,0001,276 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, 2026
13Partial evidenceChicago, IL, United StatesHQ checked Sep 27, 20261,001-5,0001,138 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, 2026
14Partial evidenceDavenport, IA, United StatesHQ checked Sep 27, 20261,001-5,0001,120 contacts →

Partial evidence

“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceWarsaw, PolandHQ checked Sep 27, 202610001+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, 2026
16Indirect evidenceMarseille, FranceHQ checked Sep 27, 202610001+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, 2026
17Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261,001-5,000953 contacts →

Indirect evidence

“Sector Alarm er en av Europas ledende leverandører av sikkerhet, og har mer enn 650 fornøyde og trygge kunder i Europa.”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceAmadora, PortugalHQ checked Sep 27, 20265,001-10,000893 contacts →

Strong evidence

“Security Company Electronics developers Systems integrator”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceMagdalena Del Mar, PeruHQ checked Sep 27, 20261,001-5,000891 contacts →

Partial evidence

“Securitas es socio líder en soluciones de protección inteligente.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 27, 20261,001-5,000885 contacts →

Partial 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 27, 2026
21Strong evidenceWest Palm Beach, FL, United StatesHQ checked Sep 27, 2026501-1,000849 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 27, 2026
22Partial evidenceUniontown, OH, United StatesHQ checked Sep 27, 202610001+839 contacts →

Partial evidence

“Securitas knows Security.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 27, 20261,001-5,000834 contacts →

Partial evidence

“Koorsen Fire & Security is a family-owned operation that has kept homes and businesses safe for more than 70 years.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceBoca Raton, FL, United StatesHQ checked Sep 27, 2026n/a799 contacts →

Partial evidence

“ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceCharlotte, NC, United StatesHQ checked Sep 27, 2026501-1,000763 contacts →

Partial 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 27, 2026

Showing 25 of 24,980 commercial security system providers worldwide

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Commercial security system providers worldwide at a glance

As of Sep 27, 2026
18.1%Verified-email coverage
11.5Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · Sao Paulo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
12,522
11-50
8,485
51-200
2,626
201-500
625
501-1,000
221
1,001-5,000
190
5,001-10,000
32
10001+
40

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 system providers, 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 system providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “commercial security system providers”. 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 system providers), 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 system providers, 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, 52,232 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 system providers by location

76 lists · largest first

Every Commercial security system providers 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 commercial security system providers, 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 system providers are there worldwide?

RevenueBase identified 24,980 commercial security system providers 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 system providers?

The United States leads with 4,922 companies, followed by the United Kingdom (2,394) and Brazil (1,649). Every commercial security system providers list by country and city is linked on this page.

Which city has the most commercial security system providers?

Sao Paulo leads with 322 headquartered companies, followed by London (245) and Dubai (120).

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 52,232 verified decision-maker contacts tracked across these 24,980 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.