Company lists · Data refreshed September 2026

Top 25 Private event security based in the United States

Name: Private event security based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 989 companies tracked

RevenueBase identified 989 private event security headquartered in the United States as of September 2026 and tracks 27,972 professional contacts across them, including 1,690 with verified work emails and 7,891 with mobile numbers. Los Angeles is the largest hub.

This list covers private event security 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 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

989Companies

27,972Contacts tracked

1,690Verified emails

7,891Mobile numbers

Explore all 989 companies → Free signup · no credit card · 500 free credits

The 25 largest private event security based in the United States

Ranked by team size

Top 25 of 989 private event security based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private event security: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	UnemployedPartial evidence	St. Petersburg, FL, United StatesHQ checked Sep 5, 2026	n/a	4,038
	“Excelsior Defense is a security and investigations company based out of St.” Source: company website · checked Sep 5, 2026
2	CSCIndirect evidence	Northridge, CA, United StatesHQ checked Sep 5, 2026	10001+	4,025
	“Contemporary Services Corporation (CSC) is recognized worldwide as the pioneer, expert and only employee owned company in the crowd management field.” Source: company website · checked Sep 5, 2026
3	Andy Frain ServicesStrong evidence	Aurora, IL, United StatesHQ checked Sep 5, 2026	5,001-10,000	2,266
	“Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.” Source: company website · checked Sep 5, 2026
4	Best Crowd ManagementStrong evidence	Coon Rapids, MN, United StatesHQ checked Sep 5, 2026	10001+	1,070
	“BEST is proud to provide crowd management, event security, and guest services for professional sports leagues, collegiate athletics, live entertainment venues, convention centers…” Source: company website · checked Sep 5, 2026
5	S.A.F.E. ManagementStrong evidence	Baltimore, MD, United StatesHQ checked Sep 5, 2026	10001+	878
	“S.A.F.E.(Security, Athletic Facilities & Events) Management is a specifically tailored guest services, security, crowd management and staffing company that specializes in sport…” Source: company website · checked Sep 5, 2026
6	Staff PROPartial evidence	Huntington Beach, CA, United StatesHQ checked Sep 5, 2026	5,001-10,000	543
	“Staff Pro, an affiliate of Allied Universal, is nationally recognized as an industry leading crowd management, event staffing, and consulting company providing experienced and…” Source: company website · checked Sep 5, 2026
7	Landmark Event Staffing Services INCPartial evidence	Oakland, CA, United StatesHQ checked Sep 5, 2026	5,001-10,000	411
	“Landmark Event Staffing Services Inc, is a leader in the event staffing industry.” Source: company website · checked Sep 5, 2026
8	Elite Security & StaffingPartial evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	5,001-10,000	376
	“Elite staffs events and facilities with professionals who create a safe and secure environment.” Source: company website · checked Sep 5, 2026
9	Iidon Security AssociatesPartial evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	501-1,000	338
	“iidon Security Associates provides premier security services catered to your company's needs.” Source: company website · checked Sep 5, 2026
10	Universal Protective ServicesIndirect evidence	Temple Hills, MD, United StatesHQ checked Sep 5, 2026	201-500	301
	Source: company website · checked Sep 5, 2026
11	Global Elite GroupPartial evidence	Garden City, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	282
	“Global Elite Group, headquartered in Garden City, NY, is a leading provider of security services worldwide.” Source: company website · checked Sep 5, 2026
12	Axis Security, INCStrong evidence	Johnson City, TN, United StatesHQ checked Sep 5, 2026	1,001-5,000	230
	“Simple, Full-Service Security and Event Staffing Since 2006, Axis, Inc.” Source: company website · checked Sep 5, 2026
13	5 Star Event ServicesStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	501-1,000	223
	“5 STAR Event Services is a Licensed Private Security Company that specializes in uniformed guards and specialty event security and staffing in the sports and entertainment…” Source: company website · checked Sep 5, 2026
14	TOP Guard INCStrong evidence	Hampton, VA, United StatesHQ checked Sep 5, 2026	501-1,000	191
	“Top Guard Security provides uniformed unarmed and armed private security officer services and believes in a balanced approach to private security services management.” Source: company website · checked Sep 5, 2026
15	Safety Service Systems Inc. S3, INCIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	501-1,000	142
	“Incorporated in 1996, S3: Safety Service Systems, Inc.” Source: company website · checked Sep 5, 2026
16	CMS Crowd Management ServicesPartial evidence	Portland, OR, United StatesHQ checked Sep 5, 2026	1,001-5,000	141
	“About CMS For 45 years, CMS has been the Northwest’s premier provider of crowd management, guest services, and security solutions.” Source: company website · checked Sep 5, 2026
17	CSS SecurityPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	129
	“Founded in 1975, CSS Security, Inc.” Source: company website · checked Sep 5, 2026
18	NPB CompaniesIndirect evidence	Kansas City, KS, United StatesHQ checked Sep 5, 2026	201-500	128
	“NPB Companies, Inc.” Source: company website · checked Sep 5, 2026
19	Sentry Event Services, INCStrong evidence	Tampa, FL, United StatesHQ checked Sep 5, 2026	501-1,000	127
	“In 2025, Sentry Event Services was officially acquired by BCM Security, marking the beginning of a bold new chapter in the world of event safety, staffing, and crowd management.” Source: company website · checked Sep 5, 2026
20	BTI SecurityPartial evidence	Rockville, MD, United StatesHQ checked Sep 5, 2026	501-1,000	125
	“Professional Security Guard Services, specializing in physical protection, personnel security, data and access control and monitoring.” Source: company website · checked Sep 5, 2026
21	MPS Security & ProtectionPartial evidence	Murrieta, CA, United StatesHQ checked Sep 5, 2026	51-200	118
	“MPS Security, a division of National Business Investigations, Inc.(NBI), is a full-service security firm providing Executive Protection and Residential Security Team protection.” Source: company website · checked Sep 5, 2026
22	Advanced Security Concepts INCPartial evidence	Van Nuys, CA, United StatesHQ checked Sep 5, 2026	51-200	116
	“Advanced Security Concepts, Inc (ASC), is a Los Angeles area security provider based in Van Nuys, CA.” Source: company website · checked Sep 5, 2026
23	ISS ActionPartial evidence	Queens, United StatesHQ checked Sep 5, 2026	201-500	113
	“ISS Action has been at the vanguard of the security services since it opened its doors in 1991.” Source: company website · checked Sep 5, 2026
24	Reliance SecurityStrong evidence	Las Vegas, NV, United StatesHQ checked Sep 5, 2026	201-500	112
	“A veteran-founded small business, Reliance Security is Nevada’s leader in providing security services and solutions for individuals, businesses and events located in Las Vegas…” Source: company website · checked Sep 5, 2026
25	Allstar Security & Consulting INCPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	110
	“Allstar Security & Consulting is a full service, licensed, bonded and insured security services company.” Source: company website · checked Sep 5, 2026

Showing 25 of 989 private event security based in the United States

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Private event security based in the United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

Los AngelesLargest hub · 50 HQs

7,891Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

259

11-50

329

51-200

252

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

1,568

31–60

104

61–90

90–180

180+

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 private event security, 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 “private event security”. 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 private event security, 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, 1,690 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 5, 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.

Private event security by metro

Private event security in Los Angeles50
Private event security in New York46

Frequently asked

How many private event security are there based in the United States?

RevenueBase identified 989 private event security 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 private event security?

Los Angeles leads with 50 headquartered companies, followed by New York (46) and Miami (22).

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 1,690 verified decision-maker contacts tracked across these 989 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 5, 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.