Company lists · Data refreshed November 2026

Top 25 Port security service providers based in the United States

RevenueBase identified 88 company matches for port security service providers associated with the United States as of November 2026 and tracks 8,922 professional contacts across them, including 520 with verified work emails. Miami is the largest hub.

This list covers company matches for port security service providers 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 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
88Companies
8,922Contacts tracked
520Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest port security service providers based in the United States

Ranked by team size
Top 25 of 88 company matches for port security service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchSt. Petersburg, FL, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
2Exact matchAurora, IL, United StatesHQ recorded Nov 5, 20265,001-10,0002,393 contacts →

Exact match

“Andy Frain Services.America's leading provider of integrated solutions to security and events needs for over 90 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchGardena, CA, United StatesHQ recorded Nov 5, 2026501-1,000507 contacts →

Exact match

“American Guard Services is an established, reliable and accredited security protection firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchRockville Centre, NJ, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
5Exact matchQueens, United StatesHQ recorded Nov 5, 2026201-500128 contacts →

Exact match

“ISS Action has been at the vanguard of the security services since it opened its doors in 1991.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026501-1,000120 contacts →

Exact match

“Excel Security Corp.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLong Beach, CA, United StatesHQ recorded Nov 5, 2026501-1,000103 contacts →

Exact match

“TSS is a private security firm specializing in customer service, partnership focused cruise terminal, cargo facility and port authority security services, as well as crew…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchPasadena, TX, United StatesHQ recorded Nov 5, 202651-20086 contacts →

Exact match

“DPS Certificate of Private Security License Number B00257 Whether you own or operate a business, securing and protecting your assets against theft and vandalism is a vital part of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202651-20082 contacts →

Exact match

“ACT Security Group is based in Texas and provides security personnel and patrol services to a wide range of industries which include commercial, retail, residential and government…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchPortland, OR, United StatesHQ recorded Nov 5, 202651-20074 contacts →

Exact match

“As a locally owned and operated security firm, we lead with transparent communication, dynamic problem-solving, and genuine care.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchFort Worth, TX, United StatesHQ recorded Nov 5, 2026201-50074 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchFort Walton Beach, FL, United StatesHQ recorded Nov 5, 202651-20067 contacts →

Exact match

“Maritime Security Services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAlsip, NV, United StatesHQ recorded Nov 5, 2026501-1,00055 contacts →

Exact match

“Morrison Security Corporation Your Trusted Partner in Comprehensive Security Solutions At Morrison Security Corporation, we provide innovative, dependable, and tailored security…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSaint Anthony, MN, United StatesHQ recorded Nov 5, 2026201-50053 contacts →

Exact match

“UPA is a private security and related services provider of qualified, responsive security professionals serving many industries and locations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchAtlanta, GA, United StatesHQ recorded Nov 5, 2026501-1,00050 contacts →

Exact match

“Founded in 2001, ALL N ONE is one of the nation’s largest and most experienced, fully-certified security firms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSpringfield, VA, United StatesHQ recorded Nov 5, 2026501-1,00049 contacts →

Exact match

“KR Contracting is a market leading provider of world-class Security services for quality clients to include, the United States Government and multinational corporations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchValley Stream, NY, United StatesHQ recorded Nov 5, 2026201-50047 contacts →

Exact match

“Headquartered in New York State with offices at JFK International Airport in New York City.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchRoseville, CA, United StatesHQ recorded Nov 5, 2026201-50036 contacts →

Exact match

“We provide robust unarmed and armed security services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchQuincy, FL, United StatesHQ recorded Nov 5, 202611-5025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBloomington, IN, United StatesHQ recorded Nov 5, 2026201-50020 contacts →

Exact match

“Indiana Security provides professional, reliable security services tailored to protect people, property, and operations across a wide range of environments.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchOakland, CA, United StatesHQ recorded Nov 5, 202651-20018 contacts →

Exact match

“Personal Protective Services Inc is a security and investigations company based out of Oakland, California.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchPortland, OR, United StatesHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“Talon Protection Group LLC is a premier security guard and patrol company serving the vibrant city of Portland.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchTulsa, OK, United StatesHQ recorded Nov 5, 202651-20017 contacts →

Exact match

“Harmon Security Group is a security service/systems provider, applying collective experience from the security service and security technology industries into 21st century…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchMobile, FL, United StatesHQ recorded Nov 5, 202651-20016 contacts →

Exact match

“In 2009, Meridian.us was formed to provide a cost-effective solution to combating piracy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchDenver, CO, United StatesHQ recorded Nov 5, 202651-2008 contacts →

Exact match

“Gen1 Protection is a company based out of 4819 King St, Denver, Colorado, United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 88 port security service providers based in the United States

See the full list, filter by size, metro and specialty, and access 520 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Port security service providers based in the United States at a glance

As of Nov 5, 2026
5.8%Verified-email coverage
101.4Average contacts per company
51-200Median size (employees)
4.5%Largest-city concentration · Miami
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
22
51-200
31
201-500
12
501-1,000
6
1,001-5,000
1
5,001-10,000
1

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 88 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 “port security service providers” 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 520 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 5, 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 “port security service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many port security service providers are there based in the United States?

RevenueBase identified 88 company matches for port security service providers 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?

Unemployed tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most port security service providers?

Miami leads with 4 company records, followed by Seattle (4) and Houston (3).

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 520 professional contacts with verified work emails tracked across these 88 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 88 port security service providers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.