Company lists · Data refreshed September 2026
Top 25 Access control system installers worldwide
RevenueBase identified 6,641 access control system installers worldwide as of September 2026 and tracks 52,797 professional contacts across them, including 13,214 with verified work emails. The United States is the largest market and London the largest hub.
This list covers access control 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 19, 2026. Country and city lists for access control 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.
The 25 largest access control system installers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,678 contacts → | ||||
Partial evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 849 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 542 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 326 contacts → | ||||
Partial evidence “Kings Secure Technologies (KST) is a high-end, enterprise-level systems integrator.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 324 contacts → | ||||
Indirect evidence “Kaba Group, from Rümlang in Zurich (Switzerland), and Dorma Group, based in Ennepetal near Düsseldorf (Germany), merged to form dormakaba in September 2015.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 302 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 263 contacts → | ||||
Strong evidence “Northland Controls designs, installs, manages and harmonizes physical security systems across the globe with unparalleled services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 255 contacts → | ||||
Indirect evidence “With 40 years of experience, Paxton is a company passionate about technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 232 contacts → | ||||
Partial evidence “One of the largest privately held national electronic security system integrator in the USA, NAVCO keeps you one step ahead of ever-changing technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 228 contacts → | ||||
Partial evidence “AVTEL specialise in electronic security systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 225 contacts → | ||||
Partial evidence “Family owned and operated since 1968, Alarm Detection Systems, Inc.(ADS) understands that nothing is more important than the safety of your family and the protection of your…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 210 contacts → | ||||
Partial evidence “A’nG INDIA specializes in Security surveillance, Fire Detection and CCTV products with system design and custom engineering being a major strength.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 206 contacts → | ||||
Strong evidence “An industry leader in managed access control security solutions and services since 1981, Datawatch Systems is trusted by building owners, property managers, and tenants across the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 202 contacts → | ||||
Strong evidence “Electronic Security Integrator Access Control Closed Circuit Television Intercom” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 185 contacts → | ||||
Indirect evidence “ERIS appartient à ESTYA, un groupement d’entreprises spécialisé en sécurité incendie et sûreté électronique, piloté par Ludovic Avec 50 ans d'expertise dans la sécurité incendie…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 178 contacts → | ||||
Strong evidence “Integrated Control Technology (ICT) is a world leading manufacturer of unified electronic access control and security solutions enabling a scalable solution for organizations to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 177 contacts → | ||||
Strong evidence “AMAG Technology is a market leader in Physical Access Control, Identity Management and integrated security solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 165 contacts → | ||||
Indirect evidence “Security Guard and Technology Services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 159 contacts → | ||||
Partial evidence “Comprehensive, cutting-edge integrated security systems to protect your people, business and assets for years to come.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 156 contacts → | ||||
Partial evidence “Since 1967, Vicon has been a leading provider of mission-critical security surveillance systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 156 contacts → | ||||
Indirect evidence “Um dos diferenciais da nossa empresa é o constante aprimoramento do seu quadro de colaboradores, através do investimento em treinamento, aperfeiçoamento e valorização pessoal e…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 156 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 152 contacts → | ||||
Indirect evidence “A é uma empresa de tecnologia que trabalha com soluções de automação predial.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 145 contacts → | ||||
Partial evidence “Estruturada para atender em todo o território nacional, a ATGB Sistemas atua desde a etapa de projeto à implantação e manutenção de sistemas de Automação Predial, CFTV, Controle…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: access control 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 access control system installers.
- Partial evidence
- Its own public description names part of access control system installers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name access control 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 6,641 access control system installers worldwide
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Access control system installers worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 access control 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 access control system installers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “access control 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 access control 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 access control 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, 13,214 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 19, 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.
Access control system installers by location
25 lists · largest firstEvery Access control system installers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Access control system installers based in the United States1,223
- Access control system installers based in the United Kingdom819
- Access control system installers based in France384
- Access control system installers based in Brazil346
- Access control system installers based in Italy218
- Access control system installers based in the Netherlands213
- Access control system installers based in India204
- Access control system installers based in Australia200
- Access control system installers based in Canada195
- Access control system installers based in Germany173
- Access control system installers based in Spain142
- Access control system installers based in South Africa133
- Access control system installers based in Belgium112
- Access control system installers based in Sweden110
- Access control system installers based in Mexico85
- Access control system installers based in the United Arab Emirates67
- Access control system installers based in Argentina62
- Access control system installers based in Türkiye61
- Access control system installers based in Chile56
- Access control system installers based in Switzerland55
- Access control system installers based in Ireland44
- Access control system installers based in New Zealand39
- Access control system installers based in Portugal35
- Access control system installers based in Denmark31
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 access control 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 access control system installers are there worldwide?
RevenueBase identified 6,641 access control 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?
Automated Systems Design, INC, headquartered in Alpharetta, tops this list with the largest team on record.
Which country has the most access control system installers?
The United States leads with 1,223 companies, followed by the United Kingdom (819) and France (384). Every access control system installers list by country and city is linked on this page.
Which city has the most access control system installers?
London leads with 86 headquartered companies, followed by Sao Paulo (81) and Dubai (34).
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 13,214 verified decision-maker contacts tracked across these 6,641 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 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 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.