Company lists · Data refreshed September 2026
Top 25 Access control security services worldwide
RevenueBase identified 7,352 access control security services worldwide as of September 2026 and tracks 112,980 professional contacts across them, including 29,603 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers access control security services 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 21, 2026. Country and city lists for access control security services 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 security services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,268 contacts → | ||||
Indirect evidence “Let’s create a safer and more open world – together!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,240 contacts → | ||||
Indirect evidence “HID powers the trusted identities of the world's people, places and things.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,157 contacts → | ||||
Partial evidence “CLEAR is a security identity company making experiences safer and easier-physically and digitally.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,105 contacts → | ||||
Partial evidence “Chamberlain Group (CG) is a global leader in intelligent access and Blackstone portfolio company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,190 contacts → | ||||
Partial evidence “DSI Security Services offers armed and unarmed uniformed security guard services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,076 contacts → | ||||
Partial evidence “Imprivata delivers access management solutions for healthcare and other mission-critical industries to ensure every second of crucial work is both frictionless and secure.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 929 contacts → | ||||
Indirect evidence “Mantra Softech is a global technology manufacturer and solutions provider specialising in advanced biometrics, artificial intelligence and computer-vision–driven identity…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 910 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 839 contacts → | ||||
Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 838 contacts → | ||||
Indirect evidence “Salto is one of the three core brands that constitute a unique brand platform:@SaltoWecosystem.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 792 contacts → | ||||
Partial evidence “Securitas AS er det største og eldste sikkerhetsselskapet i Norge.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 736 contacts → | ||||
Partial evidence “Commissionaires manages the largest digital fingerprinting infrastructure in Canada, all while growing the diversity of physical, electronic and cyber security employment…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 686 contacts → | ||||
Indirect evidence “Kastle is a leading provider of property technology solutions, protecting commercial real estate, multi-family residential, global enterprises, educational institutions and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 686 contacts → | ||||
Indirect evidence “We change the world of welcoming people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 541 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 527 contacts → | ||||
Indirect evidence “Since 1987, Tech Systems, Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 417 contacts → | ||||
Partial evidence “At Kent, we’re able to pull from an unequaled pool of business and security products and services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 396 contacts → | ||||
Indirect evidence “A Padrão Serviços é uma empresa pioneira na terceirização de serviços inovadores.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 362 contacts → | ||||
Strong evidence “LenelS2 is a global leader in advanced physical security solutions, including access control, video surveillance and mobile credentialing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 336 contacts → | ||||
Partial evidence “Gallagher Security is a global leader in integrated technology solutions that help organizations around the world protect, secure, and manage people and assets.” Source: RevenueBase Database · checked Sep 21, 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 security services. 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 security services.
- Partial evidence
- Its own public description names part of access control security services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name access control security services. 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 7,352 access control security services worldwide
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Access control security services worldwide at a glance
As of Sep 21, 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 security services, 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 security services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “access control security services”. 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 security services), 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 security services, 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, 29,603 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 21, 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 security services by location
33 lists · largest firstEvery Access control security services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Access control security services based in the United States1,229
- Access control security services based in Brazil619
- Access control security services based in India470
- Access control security services based in the United Kingdom442
- Access control security services based in France325
- Access control security services based in Germany231
- Access control security services based in the Netherlands191
- Access control security services based in Australia189
- Access control security services based in Canada180
- Access control security services based in Spain172
- Access control security services based in South Africa148
- Access control security services based in Italy145
- Access control security services based in Belgium114
- Access control security services based in Türkiye108
- Access control security services based in Mexico107
- Access control security services based in the United Arab Emirates107
- Access control security services based in Sweden104
- Access control security services based in Chile85
- Access control security services based in Argentina83
- Access control security services based in Switzerland71
- Access control security services based in Romania40
- Access control security services based in Portugal36
- Access control security services based in New Zealand35
- Access control security services based in Saudi Arabia34
- Access control security services based in Denmark32
- Access control security services based in Austria28
- Access control security services based in Ireland26
- Access control security services based in Norway26
Cities
- Access control security services based in Sao Paulo, Brazil131
- Access control security services based in London, United Kingdom105
- Access control security services based in New York, United States44
- Access control security services based in Stockholm, Sweden35
- Access control security services based in Santiago, Chile30
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 security services, 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 security services are there worldwide?
RevenueBase identified 7,352 access control security services 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?
Assa Abloy Group, headquartered in Stockholm, tops this list with the largest team on record.
Which country has the most access control security services?
The United States leads with 1,229 companies, followed by Brazil (619) and India (470). Every access control security services list by country and city is linked on this page.
Which city has the most access control security services?
Sao Paulo leads with 131 headquartered companies, followed by Dubai (60) and London (57).
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 29,603 verified decision-maker contacts tracked across these 7,352 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 21, 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.