Company lists · Data refreshed September 2026

Top 25 Gate security and access control companies worldwide

RevenueBase identified 16,093 gate security and access control companies worldwide as of September 2026 and tracks 167,004 professional contacts across them, including 33,919 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers gate security and access control 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 28, 2026. Country and city lists for gate security and access control 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 28, 2026 86% judged on-target in blind review
16,093Companies
167,004Contacts tracked
33,919Verified emails
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The 25 largest gate security and access control companies worldwide

Ranked by team size
Top 25 of 16,093 gate security and access control companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to gate security and access control 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
1Partial evidenceSt. Petersburg, FL, United StatesHQ checked Sep 28, 2026n/a4,038 contacts →

Partial evidence

“Excelsior Defense is a security and investigations company based out of St.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceIssy-les-moulineaux, FranceHQ checked Sep 28, 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 28, 2026
3Partial evidenceDublin 7, IrelandHQ checked Sep 28, 202610001+3,024 contacts →

Partial evidence

“Allegion (NYSE: ALLE) is a global pioneer in seamless access, with leading brands like CISA®, Interflex®, LCN®, Schlage®, SimonsVoss® and Von Duprin®.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 2026n/a2,678 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 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 28, 2026
6Partial evidenceOak Brook, United StatesHQ checked Sep 28, 20265,001-10,0002,105 contacts →

Partial evidence

“Chamberlain Group (CG) is a global leader in intelligent access and Blackstone portfolio company.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceRomeoville, IL, United StatesHQ checked Sep 28, 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 28, 2026
8Partial evidenceDothan, AL, United StatesHQ checked Sep 28, 20261,001-5,0001,190 contacts →

Partial evidence

“DSI Security Services offers armed and unarmed uniformed security guard services.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
10Strong evidenceGothenburg, SwedenHQ checked Sep 28, 20261,001-5,000910 contacts →

Strong evidence

“Gunnebo is a global leader in security solutions, offering innovative products and services to control the flow of people and to protect valuables from burglary, fire and…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceAmadora, PortugalHQ checked Sep 28, 20265,001-10,000893 contacts →

Partial evidence

“Security Company Electronics developers Systems integrator”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceWest Palm Beach, FL, United StatesHQ checked Sep 28, 2026501-1,000849 contacts →

Partial 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 28, 2026
13Partial evidenceUniontown, OH, United StatesHQ checked Sep 28, 202610001+839 contacts →

Partial evidence

“Securitas knows Security.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceBoca Raton, FL, United StatesHQ checked Sep 28, 2026n/a799 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceOslo, NorwayHQ checked Sep 28, 20265,001-10,000792 contacts →

Partial evidence

“Securitas AS er det største og eldste sikkerhetsselskapet i Norge.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceGrödig, AustriaHQ checked Sep 28, 20261,001-5,000686 contacts →

Indirect evidence

“We change the world of welcoming people.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSpainHQ checked Sep 28, 20261,001-5,000659 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 28, 2026
18Partial evidenceBolingbrook, IL, United StatesHQ checked Sep 28, 20261,001-5,000615 contacts →

Partial evidence

“Covenant Aviation Security, LLC (CAS) is an industry leader in providing transportation security services to airport authorities, airlines, and the federal government.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 28, 20261,001-5,000607 contacts →

Indirect evidence

“O grupo Anjos da Guarda iniciou atividades na década de 80.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSão Paulo, BrazilHQ checked Sep 28, 20265,001-10,000563 contacts →

Indirect evidence

“Empresa especializada em soluções personalizadas de Segurança Privada, contando com serviços de Vigilância Patrimonial, Segurança Pessoal e Segurança Eletrônica.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceZollikofen, SwitzerlandHQ checked Sep 28, 2026501-1,000542 contacts →

Partial 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 28, 2026
22Partial evidenceKingston 5, JamaicaHQ checked Sep 28, 20261,001-5,000542 contacts →

Partial 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 28, 2026
23Partial evidenceBethesda, MD, United StatesHQ checked Sep 28, 2026501-1,000541 contacts →

Partial evidence

“Brivo is the global leader in cloud-native physical security, with more than 2 million devices deployed across locations in 80 countries.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceBuford, GA, IndiaHQ checked Sep 28, 2026501-1,000527 contacts →

Indirect evidence

“Since 1987, Tech Systems, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceDiadema, BrazilHQ checked Sep 28, 20261,001-5,000525 contacts →

Partial evidence

“O Grupo ASSA ABLOY é líder mundial na fabricação e fornecimento de soluções completas para controle de acesso e segurança, e dedica-se à satisfação das necessidades dos usuários…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 16,093 gate security and access control companies worldwide

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Gate security and access control companies worldwide at a glance

As of Sep 28, 2026
20.3%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
8,188
11-50
5,489
51-200
1,604
201-500
359
501-1,000
117
1,001-5,000
101
5,001-10,000
19
10001+
20

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 gate security and access control 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
Every country. Country and city lists for gate security and access control companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “gate security and access control 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 gate security and access control 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 gate security and access control 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, 33,919 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 28, 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.

Gate security and access control companies by location

53 lists · largest first

Every Gate security and access control 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 gate security and access control 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 gate security and access control companies are there worldwide?

RevenueBase identified 16,093 gate security and access control 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?

Unemployed, headquartered in St. Petersburg, tops this list with the largest team on record.

Which country has the most gate security and access control companies?

The United States leads with 2,803 companies, followed by the United Kingdom (1,629) and Brazil (1,284). Every gate security and access control companies list by country and city is linked on this page.

Which city has the most gate security and access control companies?

Sao Paulo leads with 254 headquartered companies, followed by London (172) and Dubai (88).

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 33,919 verified decision-maker contacts tracked across these 16,093 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 28, 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.