Company lists · Data refreshed November 2026

Top 25 Manned guarding services based in the United States

RevenueBase identified 1,340 company matches for manned guarding services associated with the United States as of November 2026 and tracks 82,722 professional contacts across them, including 5,704 with verified work emails. Los Angeles is the largest hub.

This list covers company matches for manned guarding services 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 November 6, 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 Nov 6, 2026 How this list was built
1,340Companies
82,722Contacts tracked
5,704Verified emails
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The 25 largest manned guarding services based in the United States

Ranked by team size
Top 25 of 1,340 company matches for manned guarding services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchParsippany, MI, United StatesHQ recorded Nov 6, 202610001+40,551 contacts →

Exact match

“Securitas knows Security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt. Petersburg, FL, United StatesHQ recorded Nov 6, 2026n/a4,040 contacts →

Exact match

“Excelsior Defense is a security and investigations company based out of St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202610001+3,921 contacts →

Exact match

“Everywhere Security Matters™ Inter-Con is one of the largest and fastest-growing physical security and risk management companies in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchChattanooga, VA, United StatesHQ recorded Nov 6, 20265,001-10,0002,341 contacts →

Exact match

“Walden Security is the nation's largest privately held, family-owned and operated, American-owned security company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRaleigh, TX, United StatesHQ recorded Nov 6, 20265,001-10,0001,740 contacts →

Exact match

“Sunstates Security, LLC is one of the industry's leading providers of contract security services with a differentiated approach to providing successful, cost-effective, quality…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+1,562 contacts →

Exact match

“Guardsmark, LLC provides security services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDothan, AL, United StatesHQ recorded Nov 6, 20261,001-5,0001,277 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20261,001-5,0001,209 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 20265,001-10,0001,168 contacts →

Exact match

“Founded in 1982, St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSmithtown, PA, United StatesHQ recorded Nov 6, 20265,001-10,000930 contacts →

Exact match

“Arrow Security stands as one of the nation's largest privately held security guard companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 20261,001-5,000697 contacts →

Exact match

“Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRichardson, NC, United StatesHQ recorded Nov 6, 20261,001-5,000544 contacts →

Exact match

“COMMITTED PEOPLE.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Miami Beach, NY, United StatesHQ recorded Nov 6, 20261,001-5,000450 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 20265,001-10,000390 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDallas, TX, United StatesHQ recorded Nov 6, 2026501-1,000354 contacts →

Exact match

“iidon Security Associates provides premier security services catered to your company's needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNorwalk, CT, United StatesHQ recorded Nov 6, 2026501-1,000305 contacts →

Exact match

“At Protos Security we believe in a modern security experience that never settles and dynamically adapts to the evolving needs of businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchRockville Centre, NJ, United StatesHQ recorded Nov 6, 20261,001-5,000287 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchRichardson, TX, United StatesHQ recorded Nov 6, 2026501-1,000265 contacts →

Exact match

“GuardTexas is a Texas-owned security services provider delivering professional, dependable protection since 1976.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchN. Little Rock, AR, United StatesHQ recorded Nov 6, 2026501-1,000224 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCosta Mesa, CA, United StatesHQ recorded Nov 6, 2026501-1,000221 contacts →

Exact match

“We are a privately owned California security services provider who is committed to excellence in service in every aspect of our business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHampton, VA, United StatesHQ recorded Nov 6, 2026501-1,000200 contacts →

Exact match

“Top Guard Security provides uniformed unarmed and armed private security officer services and believes in a balanced approach to private security services management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchOverland Park, KS, United StatesHQ recorded Nov 6, 2026501-1,000182 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDenver, CO, United StatesHQ recorded Nov 6, 2026501-1,000166 contacts →

Exact match

“Quality armed and unarmed security officer services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSpokane Valley, WA, United StatesHQ recorded Nov 6, 2026501-1,000163 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 2026201-500160 contacts →

Exact match

“Security Guard and Technology Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,340 manned guarding services based in the United States

See the full list, filter by size, metro and specialty, and access 5,704 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Manned guarding services based in the United States at a glance

As of Nov 6, 2026
6.9%Verified-email coverage
61.7Average contacts per company
11-50Median size (employees)
4.6%Largest-city concentration · Los Angeles
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
308
11-50
439
51-200
366
201-500
124
501-1,000
51
1,001-5,000
22
5,001-10,000
8
10001+
13

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 1,340 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 “manned guarding services” 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 5,704 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 November 6, 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 “manned guarding services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many manned guarding services are there based in the United States?

RevenueBase identified 1,340 company matches for manned guarding services associated with the United States as of November 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?

Securitas Security Services Usa, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most manned guarding services?

Los Angeles leads with 61 company records, followed by New York (39) and Houston (32).

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 5,704 professional contacts with verified work emails tracked across these 1,340 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 November 6, 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.