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Company lists · Data verified August 2026

Top 25 Armed security guard services based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,159 companies tracked

There are 4,159 armed security guard services headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 223,746 professional contacts across them, including 18,372 with verified work emails and 66,907 with mobile numbers. New York is the largest hub.

This list covers armed security guard services headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

4,159Companies
223,746Contacts tracked
18,372Verified emails
66,907Mobile numbers
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The 25 largest armed security guard services based in the United States

Ranked by team size
Top 25 of 4,159 armed security guard services based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1Allied UniversalRosemont, IL10001+62,7156,035
2Securitas Security Services Usa, INCBoise, ID10001+38,6501,761
3Inter-Con SecurityPasadena, CA10001+3,609569
4U.S. Security Associates, INCSalt Lake City, UT10001+3,60042
5EveronIrving, TX1,001-5,0002,022156
6Paragon Systems INCHerndon, VA10001+1,94675
7Weiser Security Services, INCNew Orleans, LA1,001-5,0001,389134
8GuardsmarkNew York, NY10001+1,3751
9DSI Security ServicesDothan, AL1,001-5,0001,186125
10SOS Security LLCSacramento, CA10001+1,14812
11PER MAR Security ServicesDavenport, IA1,001-5,0001,122203
12Securitas Critical Infrastructure Services, INCHerndon, VA10001+1,11323
13BAY Alarm CompanyHayward, CA1,001-5,000795387
14Northeast Security INCWestwood, MA1,001-5,000744185
15Akal SecurityEspanola, NM10001+74159
16DK SecurityGrand Rapids, MI1,001-5,00057031
17Ranger AmericanSan Juan1,001-5,00051134
18Securitas UAEAbu Dhabi10001+48827
19Valor Security ServicesMarietta, GA1,001-5,0004513
20Star Protection Agency, LLCLas Vegas, NV1,001-5,0004504
21Summit Security Services, INCNew Haven, CT1,001-5,0004281
22Kent ServicesNorth Miami Beach, FL1,001-5,00041819
23Security Engineers, INCNashville, TN1,001-5,00041463
24Cambridge Security Services CorpFort Lauderdale, FL1,001-5,00034324
25United American Security, LLC UASVirginia Beach, VA1,001-5,00032210

Showing 25 of 4,159 armed security guard services based in the United States

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Armed security guard services based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
New YorkLargest hub · 141 HQs
66,907Contacts with mobile numbers
85Emails re-verified in last 30 days

Companies by employee count

1-10
1,222
11-50
1,425
51-200
908
201-500
312
501-1,000
143
1,001-5,000
80
10001+
21

Armed security guard services by metro

MetroCompanies
Armed security guard services in New York141
Armed security guard services in Los Angeles126
Armed security guard services in Houston109
Armed security guard services in Miami81
Armed security guard services in Chicago62
Armed security guard services in Atlanta54
Armed security guard services in Austin51
Armed security guard services in Las Vegas49

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “armed security guard services”, with match quality audited by blind human judging, and headquartered in the United States.
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
Contact records re-verify on a rolling cadence; 85 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many armed security guard services are there based in the United States?

There are 4,159 armed security guard services headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Allied Universal, headquartered in Rosemont, tops this list with the largest team on record.

Which city has the most armed security guard services?

New York leads with 141 headquartered companies, followed by Los Angeles (126) and Houston (109).

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 18,372 verified decision-maker contacts tracked across these 4,159 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Browse: Companies home · All United States lists · All Armed security guard services lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.

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