Company lists · Data refreshed September 2026
Top 25 Security guard training providers based in the United States
RevenueBase identified 514 security guard training providers headquartered in the United States as of September 2026 and tracks 9,378 professional contacts across them, including 335 with verified work emails and 1,989 with mobile numbers. New York is the largest hub.
This list covers security guard training providers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 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.
The 25 largest security guard training providers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | UnemployedPartial evidence | 4,038 | |||
“Excelsior Defense is a security and investigations company based out of St.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 514 | ||||
“COMMITTED PEOPLE.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 164 | ||||
“Anderson Security is a 23 year old, locally women-owned (National Women's Business Enterprise Certification) and operated security company that provides security officers…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 129 | ||||
“American Corporate Security is a Security officer training facility for security guards in the California area.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Nighthawk Security CompanyPartial evidence | 129 | |||
“Nighthawk Security Company is a privately owned and operated company headquartered in western Kentucky.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 116 | ||||
“At IPS, we have a simple and powerful mission: to consistently deliver elite security services to meet the unique needs of each client, ensuring their safety and peace of mind.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Narrow SecurityStrong evidence | 103 | |||
“Narrow Security provides Fire Guard Services and Security Guard Services across the US.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Royce U.S. Protection ServiceIndirect evidence | 91 | |||
“Established in 1976, Royce-U.S.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 81 | ||||
“Your Protection is Our Mission & Your Safety is Our Goal” has been our motto since the founding of Absolute Security International.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Northwest Enforcement, INCPartial evidence | 71 | |||
“As a locally owned and operated security firm, we lead with transparent communication, dynamic problem-solving, and genuine care.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 68 | ||||
“We are among the few private security guard companies offering security guard services nationwide.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 61 | ||||
“Prudential Defense Solutions is a full‑service security provider offering professional guard services, door staff, and government‑contractor.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Ipsa Security ServicesPartial evidence | 47 | |||
“IPSA Security Services, LLC, is a locally owned and operated firm offering clients professional, unarmed guarding services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Alante Security Group INCIndirect evidence | 41 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Usentra Security ServicesPartial evidence | 37 | |||
“USENTRA Security Services (formerly Rhode Island Bureau of Investigation - RIBI) is headquartered in Warwick, RI.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | L&p Global SecurityPartial evidence | 37 | |||
“L&P Global Security is a D Texas-based private security services provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 35 | ||||
“Scout was founded with a mission to train and deploy the best security personnel in the world to create safe environments that increase asset value with the best client experience…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 32 | ||||
“Allied International Security offers armed/unarmed Guards, Patrol Services, CCTV Surveillance for businesses, construction sites, schools, etc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 31 | ||||
“Praetorian USA is a Security Guard and Event Staffing company licensed by the State of California to provide trained staff and Licensed Security Guards To events, venues, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Industry Security Services, INCPartial evidence | 29 | |||
“We have developed processes and an environment that improves the Quality of Service that the most demanding security programs clients require.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Metro Cleveland SecurityPartial evidence | 29 | |||
“Metro Cleveland Security Inc is an entertainment company based out of 5627 Memphis Ave, Cleveland, Ohio, United States.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 27 | ||||
“BLUE LIFE SECURITY is a company based out of 1532 POW CAMP RD, CROSSVILLE, Tennessee, United States.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | International Foundation For Protection Officers IfpoStrong evidence | 27 | |||
“The International Foundation for Protection Officers (IFPO) is dedicated to providing meaningful and cost effective security training for security guards and protection officers.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 27 | ||||
“Eagles Point Security is a professional security services that works directly with our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | SR Global SecurityPartial evidence | 26 | |||
“SR Global Security was founded in order to fill a void seen in today’s private security model.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 514 security guard training providers based in the United States
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Security guard training providers based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security guard training providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- 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
- Companies headquartered in the United States whose own description of what they do matches “security guard training providers”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security guard training providers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 335 across the full list. 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 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many security guard training providers are there based in the United States?
RevenueBase identified 514 security guard training providers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Unemployed, headquartered in St. Petersburg, tops this list with the largest team on record.
Which city has the most security guard training providers?
New York leads with 21 headquartered companies, followed by Chicago (13) and Houston (13).
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 335 verified decision-maker contacts tracked across these 514 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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.
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