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Company lists · Data verified August 2026

Top 25 Commercial security services based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,930 companies tracked

There are 4,930 commercial security services headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 217,859 professional contacts across them, including 24,150 with verified work emails and 67,302 with mobile numbers. New York is the largest hub.

This list covers commercial security 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.

4,930Companies
217,859Contacts tracked
24,150Verified emails
67,302Mobile numbers
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The 25 largest commercial security services based in the United States

Ranked by team size
Top 25 of 4,930 commercial security 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
1Andy Frain ServicesAurora, IL5,001-10,0002,265199
2Walden SecurityCharlotte, NC5,001-10,0002,167153
3EveronIrving, TX1,001-5,0002,022156
4Sunstates SecurityDallas, TX5,001-10,0001,629251
5Admiral Security ServicesBethesda, MD5,001-10,0001,438244
6Protection 1 Security SolutionsWichita, KS1,001-5,0001,4058
7Weiser Security Services, INCNew Orleans, LA1,001-5,0001,389134
8Vector SecurityMansfield, OH1,001-5,0001,286135
9DSI Security ServicesDothan, AL1,001-5,0001,186125
10Titan Security GroupChicago, IL1,001-5,0001,133219
11PER MAR Security ServicesDavenport, IA1,001-5,0001,122203
12St. Moritz Security Services, INCDallas, TX5,001-10,0001,057187
13BAY Alarm CompanyHayward, CA1,001-5,000795387
14SecuramericaAtlanta, GA5,001-10,0007834
15Northeast Security INCWestwood, MA1,001-5,000744185
16United Protective ServicesDallas, TX1,001-5,00067063
17Ranger AmericanSan Juan1,001-5,00051134
18Valor Security ServicesMarietta, GA1,001-5,0004513
19Star Protection Agency, LLCLas Vegas, NV1,001-5,0004504
20Kent ServicesNorth Miami Beach, FL1,001-5,00041819
21TarianLouisville, KY5,001-10,00038992
22Elite Security & StaffingMiami Gardens, FL5,001-10,00037527
23Cambridge Security Services CorpFort Lauderdale, FL1,001-5,00034324
24United American Security, LLC UASVirginia Beach, VA1,001-5,00032210
25Huntleigh USAIrving, TX1,001-5,00031424

Showing 25 of 4,930 commercial security services based in the United States

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Commercial security services based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
New YorkLargest hub · 124 HQs
67,302Contacts with mobile numbers
105Emails re-verified in last 30 days

Companies by employee count

1-10
1,863
11-50
1,766
51-200
810
201-500
242
501-1,000
111
1,001-5,000
67
5,001-10,000
18

Commercial security services by metro

MetroCompanies
Commercial security services in New York124
Commercial security services in Houston119
Commercial security services in Los Angeles109
Commercial security services in Miami75
Commercial security services in Dallas60
Commercial security services in Atlanta54
Commercial security services in Chicago53
Commercial security services in Austin53

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 “commercial security 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; 105 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 commercial security services are there based in the United States?

There are 4,930 commercial security services headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Andy Frain Services, headquartered in Aurora, tops this list with the largest team on record.

Which city has the most commercial security services?

New York leads with 124 headquartered companies, followed by Houston (119) and Los Angeles (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 24,150 verified decision-maker contacts tracked across these 4,930 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 Commercial security 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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