Company lists · Data refreshed September 2026

Top 25 Facility security system integrators based in the United States

Name: Facility security system integrators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,214 companies tracked

RevenueBase identified 4,214 facility security system integrators headquartered in the United States as of September 2026 and tracks 83,589 professional contacts across them, including 29,733 with verified work emails. New York is the largest hub.

This list covers facility security system integrators headquartered in the United States, 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.

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

4,214Companies

83,589Contacts tracked

29,733Verified emails

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The 25 largest facility security system integrators based in the United States

Ranked by team size

Top 25 of 4,214 facility security system integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facility security system integrators: 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	Strong evidence	Hoffman Estates, IL, United StatesHQ checked Sep 28, 2026	10001+	5,707 contacts →
	Strong evidence “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Source: RevenueBase Database · checked Sep 28, 2026
2	M.C. Dean, INC	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,761 contacts →
	Indirect evidence “M.C.” Source: RevenueBase Database · checked Sep 28, 2026
3	Automated Systems Design, INC	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	n/a	2,678 contacts →
	Partial evidence “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Source: RevenueBase Database · checked Sep 28, 2026
4	Everon	Partial evidence	Irving, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,045 contacts →
	Partial 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 28, 2026
5	Pye-Barker Fire & Safety	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,438 contacts →
	Indirect evidence “Pye-Barker Fire & Safety is the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
6	Protection 1 Security Solutions	Partial evidence	Romeoville, IL, United StatesHQ checked Sep 28, 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 28, 2026
7	Titan Security Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
8	Security 101	Strong evidence	West Palm Beach, FL, United StatesHQ checked Sep 28, 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 28, 2026
9	Securitas Electronic Security, INC	Partial evidence	Uniontown, OH, United StatesHQ checked Sep 28, 2026	10001+	839 contacts →
	Partial evidence “Securitas knows Security.” Source: RevenueBase Database · checked Sep 28, 2026
10	Northeast Security INC	Partial evidence	Westwood, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	748 contacts →
	Partial evidence “Improving Security.” Source: RevenueBase Database · checked Sep 28, 2026
11	Interface Systems	Strong evidence	St Louis, MO, United StatesHQ checked Sep 28, 2026	501-1,000	569 contacts →
	Strong evidence “Interface Systems combines AI-powered technologies with expert remote video monitoring from its US-based Interactive Security Operations Centers (iSOCs).” Source: RevenueBase Database · checked Sep 28, 2026
12	Ford Audio-Video	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 28, 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 28, 2026
13	Pavion	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	558 contacts →
	Partial evidence “Pavion Connects and Protects by providing Fire, Security, and Integration solutions to customers.” Source: RevenueBase Database · checked Sep 28, 2026
14	BRIVO	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	501-1,000	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 28, 2026
15	Fori Automation, LLC A Lincoln Electric Company	Partial evidence	Shelby Twp., MI, United StatesHQ checked Sep 28, 2026	501-1,000	447 contacts →
	Partial evidence “Fori Automation, LLC is a global leader in the design, build, and integration of custom material handling, assembly, testing, and welding systems.” Source: RevenueBase Database · checked Sep 28, 2026
16	The Cook & Boardman Group, LLC	Indirect evidence	Winston-Salem, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	445 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
17	Napco Security Technologies	Partial evidence	Amityville, NY, United StatesHQ checked Sep 28, 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 28, 2026
18	Tech Electronics	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 28, 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 28, 2026
19	Digital Monitoring Products	Partial evidence	Springfield, MO, United StatesHQ checked Sep 28, 2026	201-500	402 contacts →
	Partial evidence “DMP specializes in delivering innovative security solutions, including burglary, fire, access control and video security products.” Source: RevenueBase Database · checked Sep 28, 2026
20	Guardian Alarm	Partial evidence	Southfield, MI, United StatesHQ checked Sep 28, 2026	501-1,000	389 contacts →
	Partial evidence “Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.” Source: RevenueBase Database · checked Sep 28, 2026
21	Lenels2	Partial evidence	Pittsford, NY, United StatesHQ checked Sep 28, 2026	201-500	362 contacts →
	Partial evidence “LenelS2 is a global leader in advanced physical security solutions, including access control, video surveillance and mobile credentialing.” Source: RevenueBase Database · checked Sep 28, 2026
22	Linx Lllp	Strong evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	501-1,000	352 contacts →
	Strong evidence “LINX is a technology integrator specializing in the design, installation and support of network cabling, multimedia, security and wireless systems.” Source: RevenueBase Database · checked Sep 28, 2026
23	Comnet Communications	Partial evidence	Bethel, CT, United StatesHQ checked Sep 28, 2026	201-500	343 contacts →
	Partial evidence “ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Source: RevenueBase Database · checked Sep 28, 2026
24	Acre Security	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	329 contacts →
	Partial evidence “Moving security forward-intelligently, confidently, together.” Source: RevenueBase Database · checked Sep 28, 2026
25	ADS Security	Partial evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	201-500	324 contacts →
	Partial evidence “Headquartered in Nashville, TN, with branches throughout the Southeastern United States, ADS Security, a Vector Security company, is the 20th largest electronic security company…” Source: RevenueBase Database · checked Sep 28, 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: facility security system integrators. 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 facility security system integrators.
Partial evidence: Its own public description names part of facility security system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facility security system integrators. 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 4,214 facility security system integrators based in the United States

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Facility security system integrators based in the United States at a glance

As of Sep 28, 2026

35.6%Verified-email coverage

19.8Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,800

11-50

1,740

51-200

498

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,214 companies.

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 security system integrators, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “facility security system integrators”. 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 security system integrators), 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 security system integrators, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 29,733 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 security system integrators by metro

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 security system integrators, 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 security system integrators are there based in the United States?

RevenueBase identified 4,214 facility security system integrators headquartered in the United States 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 city has the most facility security system integrators?

New York leads with 87 headquartered companies, followed by Houston (84) and Miami (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 29,733 verified decision-maker contacts tracked across these 4,214 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.