Company lists · Data refreshed September 2026

Top 25 Commercial security system installers worldwide

Name: Commercial security system installers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 19,380 companies tracked

RevenueBase identified 19,380 commercial security system installers worldwide as of September 2026 and tracks 175,690 professional contacts across them, including 38,214 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers commercial security system installers 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 installers 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

19,380Companies

175,690Contacts tracked

38,214Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest commercial security system installers worldwide

Ranked by team size

Top 25 of 19,380 commercial security system installers 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 installers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Convergint	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 27, 2026	10001+	5,707 contacts →
	Partial evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 27, 2026
2	Securitas France	Partial evidence	Issy-les-moulineaux, FranceHQ checked Sep 27, 2026	10001+	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
3	Automated Systems Design, INC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 27, 2026	n/a	2,678 contacts →
	Partial evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 27, 2026
4	Pronet Security Services	Strong evidence	Istanbul, TürkiyeHQ checked Sep 27, 2026	1,001-5,000	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, 2026
5	Everon	Strong evidence	Irving, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	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, 2026
6	Protection 1 Security Solutions	Partial evidence	Romeoville, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	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, 2026
7	Vector Security	Partial evidence	Warrendale, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	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, 2026
8	Titan Security Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	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, 2026
9	Solid Security Sp. Z O.O	Partial evidence	Warsaw, PolandHQ checked Sep 27, 2026	10001+	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
10	Strong Segurança, S.A	Strong evidence	Amadora, PortugalHQ checked Sep 27, 2026	5,001-10,000	893 contacts →
	Strong evidence “Security Company Electronics developers Systems integrator” Source: RevenueBase Database · checked Sep 27, 2026
11	Security 101	Strong evidence	West Palm Beach, FL, United StatesHQ checked Sep 27, 2026	501-1,000	849 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
12	Securitas Electronic Security, INC	Partial evidence	Uniontown, OH, United StatesHQ checked Sep 27, 2026	10001+	839 contacts →
	Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 27, 2026
13	ADT Commercial	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 27, 2026	n/a	799 contacts →
	Partial evidence “ADT Commercial, LLC was acquired by GTCR and is now Everon, LLC.” Source: RevenueBase Database · checked Sep 27, 2026
14	Chubb Fire & Security Canada	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 27, 2026	1,001-5,000	759 contacts →
	Partial evidence “Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Source: RevenueBase Database · checked Sep 27, 2026
15	Sabico Seguridad	Indirect evidence	SpainHQ checked Sep 27, 2026	1,001-5,000	659 contacts →
	Indirect evidence “comienzos de 1989 se funda SABICO SEGURIDAD S.A, estando inscrita en el Registro de Empresas de Seguridad con el nº 1731.” Source: RevenueBase Database · checked Sep 27, 2026
16	Alert 360	Partial evidence	Tulsa, TX, United StatesHQ checked Sep 27, 2026	501-1,000	572 contacts →
	Partial 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 27, 2026
17	Ford Audio-Video	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 27, 2026	501-1,000	564 contacts →
	Strong evidence “Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…” Source: RevenueBase Database · checked Sep 27, 2026
18	ITI	Partial evidence	Bluffton, IN, United StatesHQ checked Sep 27, 2026	n/a	545 contacts →
	Partial evidence “At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.” Source: RevenueBase Database · checked Sep 27, 2026
19	Securiton AG	Strong evidence	Zollikofen, SwitzerlandHQ checked Sep 27, 2026	501-1,000	542 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 27, 2026
20	Kingalarm Systems	Strong evidence	Kingston 5, JamaicaHQ checked Sep 27, 2026	1,001-5,000	542 contacts →
	Strong evidence “KingAlarm Systems began operations in March and, in a relatively short time, has become the largest Electronic Security Company not just in Jamaica but the entire Caribbean…” Source: RevenueBase Database · checked Sep 27, 2026
21	Tech Systems Inc. TSI	Partial evidence	Buford, GA, IndiaHQ checked Sep 27, 2026	501-1,000	527 contacts →
	Partial evidence “Since 1987, Tech Systems, Inc.” Source: RevenueBase Database · checked Sep 27, 2026
22	Eryma Security Systems	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 27, 2026	201-500	457 contacts →
	Indirect evidence “En tant qu’intégrateur ouvert de solutions de sûreté électroniques, nous vous accompagnons dans la protection de vos biens et personnes.” Source: RevenueBase Database · checked Sep 27, 2026
23	Napco Security Technologies	Partial evidence	Amityville, NY, United StatesHQ checked Sep 27, 2026	501-1,000	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 27, 2026
24	Tech Electronics	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 27, 2026	201-500	406 contacts →
	Indirect evidence “Since we opened our doors in 1963, relationships have been are our strength by putting people before products.” Source: RevenueBase Database · checked Sep 27, 2026
25	Global Security	Strong evidence	Blackburn, United KingdomHQ checked Sep 27, 2026	n/a	393 contacts →
	Strong evidence “At Global Security Ltd, we are proud to be one of the UK’s trusted suppliers of CCTV, intruder alarms, access control, and fire safety systems.” Source: RevenueBase Database · checked Sep 27, 2026

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 system installers. 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 system installers.
Partial evidence: Its own public description names part of commercial security system installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial security system installers. 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 19,380 commercial security system installers worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 38,214 reachable decision-makers.

Free signup · no credit card

View the full list →

Commercial security system installers worldwide at a glance

As of Sep 27, 2026

21.8%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

10,476

11-50

6,554

51-200

1,666

201-500

317

501-1,000

1,001-5,000

5,001-10,000

10001+

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 installers, 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 installers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “commercial security system installers”. 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 installers), 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 installers, 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, 38,214 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 installers by location

57 lists · largest first

Every Commercial security system installers 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 installers, 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 installers are there worldwide?

RevenueBase identified 19,380 commercial security system installers 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?

Convergint, headquartered in Hoffman Estates, tops this list with the largest team on record.

Which country has the most commercial security system installers?

The United States leads with 4,347 companies, followed by the United Kingdom (2,067) and Brazil (1,122). Every commercial security system installers list by country and city is linked on this page.

Which city has the most commercial security system installers?

Sao Paulo leads with 233 headquartered companies, followed by London (211) and Dubai (90).

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 38,214 verified decision-maker contacts tracked across these 19,380 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.

Ready to reach these companies? Verified emails and direct dials for all 19,380 commercial security system installers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.