Company lists · Data refreshed September 2026

Top 25 Naval security contractors based in the United States

RevenueBase identified 61 naval security contractors headquartered in the United States as of September 2026 and tracks 1,979 professional contacts across them, including 225 with verified work emails. Jacksonville is the largest hub.

This list covers naval security contractors 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
61Companies
1,979Contacts tracked
225Verified emails
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The 25 largest naval security contractors based in the United States

Ranked by team size
Top 25 of 61 naval security contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to naval security contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceGardena, CA, United StatesHQ checked Sep 29, 2026501-1,000484 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceHampton, VA, United StatesHQ checked Sep 29, 2026501-1,000191 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceChesapeake, VA, United StatesHQ checked Sep 29, 2026201-500173 contacts →

Indirect evidence

“Prism Maritime LLC is a business incorporated within the state of Virginia.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceConcord, CA, United StatesHQ checked Sep 29, 202611-50138 contacts →

Partial evidence

“Patriot Maritime is a leading maritime contractor to the U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLong Beach, CA, United StatesHQ checked Sep 29, 2026501-1,000103 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidencePasadena, TX, United StatesHQ checked Sep 29, 202651-20080 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceBurlingame, CA, United StatesHQ checked Sep 29, 2026201-50072 contacts →

Partial evidence

“Execushield Inc, headquartered in California, provides professional security services to both American and international clients.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceFort Walton Beach, VA, United StatesHQ checked Sep 29, 202651-20065 contacts →

Partial evidence

“Maritime Security Services.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20040 contacts →

Partial evidence

“Six Maritime is a service disabled, veteran-owned maritime security and training company specializing in advanced waterfront protection, autonomous systems integration, and…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-20035 contacts →

Indirect evidence

“Westar Marine Services has been catering to the San Francisco Maritime Community since it was founded in 1976.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceCorpus Christi, TX, United StatesHQ checked Sep 29, 202651-20032 contacts →

Partial evidence

“Sec-Ops is a leading industry provider of high quality Facility and Total Security services for over 10 years.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceSt. Augustine, FL, United StatesHQ checked Sep 29, 202651-20031 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceMobile, AL, United StatesHQ checked Sep 29, 202651-20016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceMiami, FL, United StatesHQ checked Sep 29, 202651-20016 contacts →

Partial evidence

“Since March of 2011, Seaguard Security LLC (SGS) has specialized in providing affordable armed security solutions for vessels operating in high-risk waters including the Gulf of…”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceMiddletown, RI, United StatesHQ checked Sep 29, 202611-5016 contacts →

Partial evidence

“JFA Security & Consulting Services was incorporated in the State of Rhode Island on November 9th 2006.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 29, 202651-20015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceTucson, AZ, United StatesHQ checked Sep 29, 20261-1015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceOakland, CA, United StatesHQ checked Sep 29, 202651-20014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceEverett, MA, United StatesHQ checked Sep 29, 202611-5010 contacts →

Indirect evidence

“617-387-1261 - Since 1975.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceBeaumont, TX, United StatesHQ checked Sep 29, 2026201-5008 contacts →

Partial evidence

“We offer a wide range of services including but not limited to: armed/unarmed guards, maritime escort & security services, rover patrols, and walkthroughs.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceMclean, VA, United StatesHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Established in 2012, Oshirak Group International (OGI) provides integrated maritime security training, assessment, investigation and cyber services.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Ocean County Engineering and Applied Nautical Services (OCEANS LLC) is a Florida based company that offers a diverse array of knowledge, skills and experience from recognized…”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 29, 2026201-5002 contacts →

Indirect evidence

“Advanced Marine Preservation LLC (AMP) was organized in 2013 as a full-scale marine preservation company for Navy and Coast Guard pier-side, emergent, and extended maintenance…”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Globe Protective Services is a Los Angeles based security company that was founded by an individual who recognized the increasing need for security services.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 29, 2026n/a1 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 61 naval security contractors based in the United States

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Naval security contractors based in the United States at a glance

As of Sep 29, 2026
11.4%Verified-email coverage
32.4Average contacts per company
11-50Median size (employees)
4.9%Largest-city concentration · Jacksonville
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
13
51-200
16
201-500
7
501-1,000
4
1,001-5,000
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 61 companies.

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 naval security contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “naval security contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names naval security contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among naval security contractors, 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 its RevenueBase Smart Search 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, 225 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 29, 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names naval security contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many naval security contractors are there based in the United States?

RevenueBase identified 61 naval security contractors 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?

American Guard Services, INC, headquartered in Gardena, tops this list with the largest team on record.

Which city has the most naval security contractors?

Jacksonville leads with 3 headquartered companies, followed by San Diego (3) and Tampa (3).

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 225 verified decision-maker contacts tracked across these 61 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 29, 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 Smart Search, 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.