Company lists · Data refreshed September 2026

Top 25 Healthcare security companies based in the United States

RevenueBase identified 1,189 company matches for healthcare security companies associated with the United States as of September 2026 and tracks 96,123 professional contacts across them, including 11,561 with verified work emails and 29,307 with mobile numbers. Los Angeles is the largest hub.

This list covers company matches for healthcare security companies 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 3, 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 3, 2026 How this list was built
1,189Companies
96,123Contacts tracked
11,561Verified emails
29,307Mobile numbers
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The 25 largest healthcare security companies based in the United States

Ranked by team size
Top 25 of 1,189 company matches for healthcare security companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 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, IL, United StatesHQ recorded Sep 3, 202610001+62,715 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 3, 2026 · View company records in RevenueBase
2Exact matchDothan, AL, United StatesHQ recorded Sep 3, 20261,001-5,0001,186 contacts →

Exact match

“DSI Security Services offers armed and unarmed uniformed security guard services.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3Exact matchParsippany, CA, United StatesHQ recorded Sep 3, 202610001+1,148 contacts →

Exact match

“SOS Security is a known innovator and leader in the security and protective services industry.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Sep 3, 20261,001-5,0001,133 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 3, 2026 · View company records in RevenueBase
5Exact matchHerndon, VA, United StatesHQ recorded Sep 3, 202610001+1,113 contacts →

Exact match

“Securitas Critical Infrastructure Services, Inc.(SCIS) is a provider of specialized security and fire services to the highly regulated Nuclear, Aerospace, Defense, Energy, and…”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6Exact matchPittsburgh, TX, United StatesHQ recorded Sep 3, 20265,001-10,0001,057 contacts →

Exact match

“Founded in 1982, St.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7Exact matchWest Palm Beach, NC, United StatesHQ recorded Sep 3, 2026501-1,000850 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 3, 2026 · View company records in RevenueBase
8Exact matchWestwood, MA, United StatesHQ recorded Sep 3, 20261,001-5,000744 contacts →

Exact match

“Improving Security.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9Exact matchSt. Paul, NE, United StatesHQ recorded Sep 3, 20261,001-5,000404 contacts →

Exact match

“American Security & Investigations has provided security and investigative services throughout the upper midwest since 1959.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10Exact matchSan Diego, FL, United StatesHQ recorded Sep 3, 20265,001-10,000375 contacts →

Exact match

“Elite staffs events and facilities with professionals who create a safe and secure environment.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 3, 20261,001-5,000343 contacts →

Exact match

“Cambridge Security Services is a private security company that has been in business for more than 30 years.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12Exact matchRaleigh, VA, United StatesHQ recorded Sep 3, 20261,001-5,000322 contacts →

Exact match

“United American Security was formed in 2010 to bring excellent regional security companies together.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13Exact matchRockville Centre, FL, United StatesHQ recorded Sep 3, 20261,001-5,000273 contacts →

Exact match

“Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14Exact matchAndover, VA, United StatesHQ recorded Sep 3, 2026501-1,000249 contacts →

Exact match

“Minuteman Security & Life Safety is a leading provider of enterprise security system technology solutions.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15Exact matchNashville, TN, United States501-1,000208 contacts →

Exact match

“Central Defense Security officers protect the human, intellectual and physical assets of our customers and their visitors.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16Exact matchDes Plaines, IL, United StatesHQ recorded Sep 3, 20261,001-5,000203 contacts →

Exact match

“As the U.S.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17Exact matchSmithtown, NY, United StatesHQ recorded Sep 3, 20261,001-5,000192 contacts →

Exact match

“Strategic Security Corp (SSC) is a nationwide leading provider of integrated security solutions specializing in security guard services, event security, consulting, executive…”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18Exact matchOverland Park, MO, United StatesHQ recorded Sep 3, 2026501-1,000173 contacts →

Exact match

“Established in 2008, Titan Protection and Consulting is a leading-edge security firm specializing in crime prevention and detection for hundreds of companies nationwide.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19Exact matchPhoenix, AZ, United StatesHQ recorded Sep 3, 2026501-1,000155 contacts →

Exact match

“Blackstone Security Services is proud to offer a wide variety of security services tailored to satisfy specific client needs.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20Exact matchGreenville, SC, United StatesHQ recorded Sep 3, 20261,001-5,000145 contacts →

Exact match

“Privately owned and operated, American Security has grown from an entrepreneurial start-up in 1975 to become one of the largest Southeastern-based security firms with over 3,500…”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21Exact matchBurnsville, WI, United StatesHQ recorded Sep 3, 20261,001-5,000143 contacts →

Exact match

“For almost 40 years, VTI has been called upon and recognized by our industry for a full range of advanced physical security technologies.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
22Exact matchSpokane Valley, WA, United StatesHQ recorded Sep 3, 2026501-1,000141 contacts →

Exact match

“Phoenix Protective Corporation delivers proactive security solutions with highly trained, experienced security officers and outstanding customer protection.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
23Exact matchBaton Rouge, LA, United StatesHQ recorded Sep 3, 20261,001-5,000135 contacts →

Exact match

“Founded in 1979, Lofton Security is the largest locally-owned, independent security and staffing company in the southern region.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
24Exact matchOwensboro, KY, United StatesHQ recorded Sep 3, 2026501-1,000129 contacts →

Exact match

“Nighthawk Security Company is a privately owned and operated company headquartered in western Kentucky.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
25Exact matchMemphis, TN, United StatesHQ recorded Sep 3, 2026501-1,000126 contacts →

Exact match

“Security One, Inc.”

Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase

Showing 25 of 1,189 healthcare security companies based in the United States

See the full list, filter by size, metro and specialty, and access 11,561 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Healthcare security companies based in the United States at a glance

As of Sep 3, 2026
12.0%Verified-email coverage
30.5%Mobile-number coverage
80.8Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · Los Angeles
Sep 3, 2026Page data refreshed

Companies by employee count

1-10
367
11-50
457
51-200
208
201-500
73
501-1,000
42
1,001-5,000
25
5,001-10,000
6
10001+
6

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 “healthcare security companies” 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 11,561 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 3, 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 “healthcare security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many healthcare security companies are there based in the United States?

RevenueBase identified 1,189 company matches for healthcare security companies 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 healthcare security companies?

Los Angeles leads with 37 company records, followed by New York (30) and Miami (23).

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 11,561 professional contacts with verified work emails tracked across these 1,189 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 3, 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.