Company lists · Data refreshed September 2026

Top 25 Facility access consulting firms worldwide

RevenueBase identified 5,570 facility access consulting firms worldwide as of September 2026 and tracks 59,392 professional contacts across them, including 15,521 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers facility access consulting firms 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 facility access consulting firms 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
5,570Companies
59,392Contacts tracked
15,521Verified emails
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The 25 largest facility access consulting firms worldwide

Ranked by team size
Top 25 of 5,570 facility access consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facility access consulting firms: 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 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
2Indirect 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
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0001,138 contacts →

Indirect 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
4Indirect evidenceWest Palm Beach, FL, United StatesHQ checked Sep 28, 2026501-1,000849 contacts →

Indirect 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
5Indirect evidenceNew Haven, CT, United StatesHQ checked Sep 28, 20265,001-10,000736 contacts →

Indirect evidence

“Combining the expertise of the industry’s most knowledgeable door opening experts with a comprehensive product offering of leading door and hardware brands, the consultative…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect 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
7Indirect evidenceKingston 5, JamaicaHQ checked Sep 28, 20261,001-5,000542 contacts →

Indirect 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
8Indirect evidenceWinston-Salem, NC, United StatesHQ checked Sep 28, 20261,001-5,000445 contacts →

Indirect evidence

“Established in 1955, The Cook & Boardman Group is the nation’s premier provider of architectural doors and frames, door hardware and related building specialty products in…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceDublin 24, IrelandHQ checked Sep 28, 202651-200396 contacts →

Indirect evidence

“With over 30 years of expertise experience, our purpose is to help make buildings work.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceEnnepetal, GermanyHQ checked Sep 28, 202610001+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 28, 2026
11Indirect evidenceSantos, BrazilHQ checked Sep 28, 20261,001-5,000321 contacts →

Indirect evidence

“A empresa oferece profissionais qualificados para diversas funções, entre elas, portaria e/ou controlador de acesso, auxiliar de serviços gerais, zeladoria, atendente, auxiliar…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceSyosset, NY, United StatesHQ checked Sep 28, 2026201-500302 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceSparks, MD, United StatesHQ checked Sep 28, 2026201-500244 contacts →

Indirect evidence

“For over 50 years, Wittenbach has been a trusted leader in advanced security solutions in financial and commercial industries.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceOrange, CA, United StatesHQ checked Sep 28, 202651-200232 contacts →

Indirect 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 28, 2026
15Indirect evidenceSingaporeHQ checked Sep 28, 202651-200228 contacts →

Indirect evidence

“AVTEL specialise in electronic security systems.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500221 contacts →

Partial evidence

“Shen Milsom & Wilke (SM & W) is a global consulting and design firm specializing in acoustics, audiovisual and multimedia systems, information technology, physical security, and…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceMumbai, IndiaHQ checked Sep 28, 202651-200210 contacts →

Indirect evidence

“Hosmac India Private Limited is a pioneering name in the field of Hospital Planning & Management consultancy in India.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceNoida, IndiaHQ checked Sep 28, 2026201-500210 contacts →

Indirect 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 28, 2026
19Partial evidenceBethesda, MD, United StatesHQ checked Sep 28, 2026201-500206 contacts →

Partial 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 28, 2026
20Partial evidenceAtlanta, United StatesHQ checked Sep 28, 20265,001-10,000202 contacts →

Partial evidence

“Electronic Security Integrator Access Control Closed Circuit Television Intercom”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceIvry Sur Seine, FranceHQ checked Sep 28, 2026201-500185 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 28, 2026
22Indirect evidenceWarren, NJ, United StatesHQ checked Sep 28, 202651-200182 contacts →

Indirect evidence

“At The Falcon Group, our team of experienced professionals comes together to provide a wide range of services to meet all of our clients’ specific needs.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceWetzikon, SwitzerlandHQ checked Sep 28, 202610001+179 contacts →

Indirect evidence

“Wir sind einer der Top-3-Anbieter unserer Branche und weltweit führend in smarten und sicheren Zutrittslösungen.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceAuckland, New ZealandHQ checked Sep 28, 2026201-500178 contacts →

Partial 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 28, 2026
25Partial evidenceHawthorne, CA, United StatesHQ checked Sep 28, 2026201-500177 contacts →

Partial evidence

“AMAG Technology is a market leader in Physical Access Control, Identity Management and integrated security solutions.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 5,570 facility access consulting firms worldwide

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Facility access consulting firms worldwide at a glance

As of Sep 28, 2026
26.1%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,947
11-50
1,901
51-200
501
201-500
92
501-1,000
34
1,001-5,000
30
5,001-10,000
6
10001+
12

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 facility access consulting firms, 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 facility access consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “facility access consulting firms”. 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 facility access consulting firms), 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 facility access consulting firms, 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, 15,521 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.

Facility access consulting firms by location

24 lists · largest first

Every Facility access consulting firms 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 facility access consulting firms, 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 facility access consulting firms are there worldwide?

RevenueBase identified 5,570 facility access consulting firms 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?

Allegion, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most facility access consulting firms?

The United States leads with 1,380 companies, followed by Brazil (397) and the United Kingdom (331). Every facility access consulting firms list by country and city is linked on this page.

Which city has the most facility access consulting firms?

Sao Paulo leads with 93 headquartered companies, followed by New York (38) and London (35).

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 15,521 verified decision-maker contacts tracked across these 5,570 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.