Company lists · Data refreshed September 2026

Top 25 Enterprise security system providers based in the United States

RevenueBase identified 3,637 company matches for enterprise security system providers associated with the United States as of September 2026 and tracks 140,005 professional contacts across them, including 31,137 with verified work emails. New York is the largest hub.

This list covers company matches for enterprise security system providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
3,637Companies
140,005Contacts tracked
31,137Verified emails
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The 25 largest enterprise security system providers based in the United States

Ranked by team size
Top 25 of 3,637 company matches for enterprise security system providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrvine, CA, United StatesHQ recorded Sep 28, 202610001+62,804 contacts →

Exact match

“Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchHoffman Estates, IL, United StatesHQ recorded Sep 28, 202610001+5,707 contacts →

Exact match

“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchSan Mateo, CA, United StatesHQ recorded Sep 28, 20261,001-5,0002,683 contacts →

Exact match

“Transforming how organizations protect people and places.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchAlpharetta, GA, United StatesHQ recorded Sep 28, 2026n/a2,678 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchIrving, TX, United StatesHQ recorded Sep 28, 20261,001-5,0002,045 contacts →

Exact match

“Everon is a leading national provider of commercial security, video, fire, sprinkler, and life safety solutions for complex, multi-site businesses and organizations.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchRomeoville, IL, United StatesHQ recorded Sep 28, 20261,001-5,0001,406 contacts →

Exact match

“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchWarrendale, PA, United StatesHQ recorded Sep 28, 20261,001-5,0001,287 contacts →

Exact match

“Vector Security® has protected people and property by providing intelligent security solutions tailored to the needs of the customer for more than 50 years.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261,001-5,0001,138 contacts →

Exact match

“At Titan Security Group, we understand that each client is unique, with specific security needs shaped by the type of property and its location.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchWest Palm Beach, FL, United StatesHQ recorded Sep 28, 2026501-1,000849 contacts →

Exact match

“Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchUniontown, OH, United StatesHQ recorded Sep 28, 202610001+839 contacts →

Exact match

“Securitas knows Security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchBoca Raton, FL, United StatesHQ recorded Sep 28, 2026n/a799 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchWestwood, MA, United StatesHQ recorded Sep 28, 20261,001-5,000748 contacts →

Exact match

“Improving Security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchAmerican Fork, UT, United StatesHQ recorded Sep 28, 2026501-1,000697 contacts →

Exact match

“LVT provides rapidly-deployable surveillance hardware that runs on our proprietary SaaS platform.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchColumbia, MD, United StatesHQ recorded Sep 28, 2026501-1,000696 contacts →

Exact match

“Protect Your Endpoints, Identities, Logs, and Employees.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchFalls Church, VA, United StatesHQ recorded Sep 28, 2026501-1,000686 contacts →

Exact match

“Kastle is a leading provider of property technology solutions, protecting commercial real estate, multi-family residential, global enterprises, educational institutions and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchAshburn, VA, United StatesHQ recorded Sep 28, 2026501-1,000629 contacts →

Exact match

“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchSt. Louis, MO, United StatesHQ recorded Sep 28, 2026501-1,000569 contacts →

Exact match

“Interface Systems combines AI-powered technologies with expert remote video monitoring from its US-based Interactive Security Operations Centers (iSOCs).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchChantilly, VA, United StatesHQ recorded Sep 28, 20261,001-5,000558 contacts →

Exact match

“Pavion Connects and Protects by providing Fire, Security, and Integration solutions to customers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBethesda, MD, United StatesHQ recorded Sep 28, 2026501-1,000541 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchWinston-Salem, NC, United StatesHQ recorded Sep 28, 20261,001-5,000445 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchAmityville, NY, United StatesHQ recorded Sep 28, 2026501-1,000427 contacts →

Exact match

“NAPCO Security Technologies (NASDAQ: NSSC) is one of the world's leading manufacturers of technologically advanced electronic security equipment including intrusion and fire alarm…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchNorth Miami Beach, FL, United StatesHQ recorded Sep 28, 20261,001-5,000417 contacts →

Exact match

“At Kent, we’re able to pull from an unequaled pool of business and security products and services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchSpringfield, MO, United StatesHQ recorded Sep 28, 2026201-500402 contacts →

Exact match

“DMP specializes in delivering innovative security solutions, including burglary, fire, access control and video security products.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSouthfield, MI, United StatesHQ recorded Sep 28, 2026501-1,000389 contacts →

Exact match

“Guardian Alarm is one of the largest independently-owned security companies protecting both homes and businesses throughout the Midwest.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchFresno, CA, United StatesHQ recorded Sep 28, 2026501-1,000378 contacts →

Exact match

“Pelco, a global leader in security hardware, engineers devices that help set a new standard for security, safety and operational efficiency.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 3,637 enterprise security system providers based in the United States

See the full list, filter by size, metro and specialty, and access 31,137 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise security system providers based in the United States at a glance

As of Sep 28, 2026
22.2%Verified-email coverage
38.5Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,571
11-50
1,455
51-200
427
201-500
88
501-1,000
40
1,001-5,000
36
5,001-10,000
3
10001+
8

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 3,637 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “enterprise security system providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 31,137 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise security system providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise security system providers are there based in the United States?

RevenueBase identified 3,637 company matches for enterprise security system providers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Allied Universal tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most enterprise security system providers?

New York leads with 69 company records, followed by Houston (65) and Miami (53).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31,137 professional contacts with verified work emails tracked across these 3,637 companies; direct dials are available where recorded.

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 SmartSearch, 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.