Company lists · Data refreshed September 2026

Top 25 Building security system contractors based in the United States

RevenueBase identified 4,662 company matches for building security system contractors associated with the United States as of September 2026 and tracks 150,122 professional contacts across them, including 34,236 with verified work emails. Houston is the largest hub.

This list covers company matches for building security system contractors 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 27, 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 27, 2026 How this list was built
4,662Companies
150,122Contacts tracked
34,236Verified emails
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The 25 largest building security system contractors based in the United States

Ranked by team size
Top 25 of 4,662 company matches for building security system contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 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 27, 2026 · View company records in RevenueBase
2Exact matchHoffman Estates, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
3Exact matchAlpharetta, GA, United StatesHQ recorded Sep 27, 2026n/a2,678 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchIrving, TX, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
5Exact matchAlpharetta, GA, United StatesHQ recorded Sep 27, 20265,001-10,0001,438 contacts →

Exact match

“Pye-Barker Fire & Safety is the U.S.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchRomeoville, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
7Exact matchWarrendale, PA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
8Exact matchNorth Kansas City, MO, United StatesHQ recorded Sep 27, 20261,001-5,0001,276 contacts →

Exact match

“Established in Safe Haven Security has grown to become the nation’s largest ADT-authorized dealer, trusted by homeowners and businesses across the country.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
10Exact matchDavenport, IA, United StatesHQ recorded Sep 27, 20261,001-5,0001,120 contacts →

Exact match

“Per Mar Security Services is the largest full-service security solutions provider in the Midwest.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchWest Palm Beach, FL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
12Exact matchUniontown, OH, United StatesHQ recorded Sep 27, 202610001+839 contacts →

Exact match

“Securitas knows Security.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchIndianapolis, IN, United StatesHQ recorded Sep 27, 20261,001-5,000834 contacts →

Exact match

“Koorsen Fire & Security is a family-owned operation that has kept homes and businesses safe for more than 70 years.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchBoca Raton, FL, United StatesHQ recorded Sep 27, 2026n/a799 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchCharlotte, NC, United StatesHQ recorded Sep 27, 2026501-1,000763 contacts →

Exact match

“For more than 30 years, CPI Security has been a leader in customized home and business security and home automation services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchWestwood, MA, United StatesHQ recorded Sep 27, 20261,001-5,000748 contacts →

Exact match

“Improving Security.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchRichmond, VA, United StatesHQ recorded Sep 27, 20261,001-5,000726 contacts →

Exact match

“For more than 65 years, VSC Fire & Security, has partnered with thousands of customers as a trusted contractor for the inspection and installation of fire sprinkler, fire alarm…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchOklahoma City, OK, United StatesHQ recorded Sep 27, 2026501-1,000564 contacts →

Exact match

“Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchBluffton, IN, United StatesHQ recorded Sep 27, 2026n/a545 contacts →

Exact match

“At Indiana Technical Installations we provide IT Services/Networking, Home & Business Security/Surveillance Services, Custom Audio/Video and more.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchWinston-Salem, NC, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
21Exact matchColumbia, SC, United StatesHQ recorded Sep 27, 2026201-500440 contacts →

Exact match

“AMAROK™ is a nationwide commercial security company specializing in comprehensive perimeter security using electric fencing and surveillance tools like cameras, lights, and alarms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchPleasanton, CA, United StatesHQ recorded Sep 27, 20261,001-5,000431 contacts →

Exact match

“Service from One.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchAmityville, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24Exact matchNorth Miami Beach, FL, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
25Exact matchSt. Louis, MO, United StatesHQ recorded Sep 27, 2026201-500406 contacts →

Exact match

“Since we opened our doors in 1963, relationships have been are our strength by putting people before products.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 4,662 building security system contractors based in the United States

See the full list, filter by size, metro and specialty, and access 34,236 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building security system contractors based in the United States at a glance

As of Sep 27, 2026
22.8%Verified-email coverage
32.2Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Houston
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
2,061
11-50
1,879
51-200
525
201-500
93
501-1,000
44
1,001-5,000
35
5,001-10,000
5
10001+
10

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 4,662 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 “building security system contractors” 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 34,236 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 27, 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 “building security system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building security system contractors are there based in the United States?

RevenueBase identified 4,662 company matches for building security system contractors 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 building security system contractors?

Houston leads with 88 company records, followed by New York (84) and Miami (54).

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 34,236 professional contacts with verified work emails tracked across these 4,662 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 27, 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.